3.3.27-debian-11-r0 release

bitnami/etcd/3.3/debian-11/Dockerfile

@@ -0,0 +1,30 @@
+FROM docker.io/bitnami/minideb:bullseye
+LABEL maintainer "Bitnami <containers@bitnami.com>"
+
+ENV HOME="/" \
+    OS_ARCH="amd64" \
+    OS_FLAVOUR="debian-11" \
+    OS_NAME="linux"
+
+COPY prebuildfs /
+# Install required system packages and dependencies
+RUN install_packages acl ca-certificates curl gzip procps tar
+RUN . /opt/bitnami/scripts/libcomponent.sh && component_unpack "yq" "4.25.2-0" --checksum 58fc2dcc9eda8b5e88ef23081c14384a33ac4736d7238d490416fb4c5c633994
+RUN . /opt/bitnami/scripts/libcomponent.sh && component_unpack "gosu" "1.14.0-0" --checksum da4a2f759ccc57c100d795b71ab297f48b31c4dd7578d773d963bbd49c42bd7b
+RUN . /opt/bitnami/scripts/libcomponent.sh && component_unpack "etcd" "3.3.27-0" --checksum d27666d1b44b60a40dda4efd54c36abc70b6f5b78582e5e788b7be9aff926b29
+RUN apt-get update && apt-get upgrade -y && \
+    rm -r /var/lib/apt/lists /var/cache/apt/archives
+RUN chmod g+rwX /opt/bitnami
+
+COPY rootfs /
+RUN /opt/bitnami/scripts/etcd/postunpack.sh
+ENV APP_VERSION="3.3.27" \
+    BITNAMI_APP_NAME="etcd" \
+    PATH="/opt/bitnami/common/bin:/opt/bitnami/etcd/bin:$PATH"
+
+EXPOSE 2379 2380
+
+WORKDIR /opt/bitnami/etcd
+USER 1001
+ENTRYPOINT [ "/opt/bitnami/scripts/etcd/entrypoint.sh" ]
+CMD [ "/opt/bitnami/scripts/etcd/run.sh" ]

bitnami/etcd/3.3/debian-11/docker-compose.yml

@@ -0,0 +1,12 @@
+version: '2'
+
+services:
+  etcd:
+    image: docker.io/bitnami/etcd:3.3
+    environment:
+      - ALLOW_NONE_AUTHENTICATION=yes
+    volumes:
+      - etcd_data:/bitnami/etcd
+volumes:
+  etcd_data:
+    driver: local

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/.bitnami_components.json

@@ -0,0 +1,23 @@
+{
+    "etcd": {
+        "arch": "amd64",
+        "digest": "d27666d1b44b60a40dda4efd54c36abc70b6f5b78582e5e788b7be9aff926b29",
+        "distro": "debian-11",
+        "type": "NAMI",
+        "version": "3.3.27-0"
+    },
+    "gosu": {
+        "arch": "amd64",
+        "digest": "da4a2f759ccc57c100d795b71ab297f48b31c4dd7578d773d963bbd49c42bd7b",
+        "distro": "debian-11",
+        "type": "NAMI",
+        "version": "1.14.0-0"
+    },
+    "yq": {
+        "arch": "amd64",
+        "digest": "58fc2dcc9eda8b5e88ef23081c14384a33ac4736d7238d490416fb4c5c633994",
+        "distro": "debian-11",
+        "type": "NAMI",
+        "version": "4.25.2-0"
+    }
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/licenses/licenses.txt

@@ -0,0 +1,3 @@
+Bitnami containers ship with software bundles. You can find the licenses under:
+/opt/bitnami/nami/COPYING
+/opt/bitnami/[name-of-bundle]/licenses/[bundle-version].txt

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libbitnami.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Bitnami custom library
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/liblog.sh
+
+# Constants
+BOLD='\033[1m'
+
+# Functions
+
+########################
+# Print the welcome page
+# Globals:
+#   DISABLE_WELCOME_MESSAGE
+#   BITNAMI_APP_NAME
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+print_welcome_page() {
+    if [[ -z "${DISABLE_WELCOME_MESSAGE:-}" ]]; then
+        if [[ -n "$BITNAMI_APP_NAME" ]]; then
+            print_image_welcome_page
+        fi
+    fi
+}
+
+########################
+# Print the welcome page for a Bitnami Docker image
+# Globals:
+#   BITNAMI_APP_NAME
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+print_image_welcome_page() {
+    local github_url="https://github.com/bitnami/bitnami-docker-${BITNAMI_APP_NAME}"
+
+    log ""
+    log "${BOLD}Welcome to the Bitnami ${BITNAMI_APP_NAME} container${RESET}"
+    log "Subscribe to project updates by watching ${BOLD}${github_url}${RESET}"
+    log "Submit issues and feature requests at ${BOLD}${github_url}/issues${RESET}"
+    log ""
+}
+

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libcomponent.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+#
+# Library for managing Bitnami components
+
+# Constants
+CACHE_ROOT="/tmp/bitnami/pkg/cache"
+DOWNLOAD_URL="https://downloads.bitnami.com/files/stacksmith"
+
+# Functions
+
+########################
+# Download and unpack a Bitnami package
+# Globals:
+#   OS_NAME
+#   OS_ARCH
+#   OS_FLAVOUR
+# Arguments:
+#   $1 - component's name
+#   $2 - component's version
+# Returns:
+#   None
+#########################
+component_unpack() {
+    local name="${1:?name is required}"
+    local version="${2:?version is required}"
+    local base_name="${name}-${version}-${OS_NAME}-${OS_ARCH}-${OS_FLAVOUR}"
+    local package_sha256=""
+    local directory="/opt/bitnami"
+
+    # Validate arguments
+    shift 2
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+            -c|--checksum)
+                shift
+                package_sha256="${1:?missing package checksum}"
+                ;;
+            *)
+                echo "Invalid command line flag $1" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+
+    echo "Downloading $base_name package"
+    if [ -f "${CACHE_ROOT}/${base_name}.tar.gz" ]; then
+        echo "${CACHE_ROOT}/${base_name}.tar.gz already exists, skipping download."
+        cp "${CACHE_ROOT}/${base_name}.tar.gz" .
+        rm "${CACHE_ROOT}/${base_name}.tar.gz"
+        if [ -f "${CACHE_ROOT}/${base_name}.tar.gz.sha256" ]; then
+            echo "Using the local sha256 from ${CACHE_ROOT}/${base_name}.tar.gz.sha256"
+            package_sha256="$(< "${CACHE_ROOT}/${base_name}.tar.gz.sha256")"
+            rm "${CACHE_ROOT}/${base_name}.tar.gz.sha256"
+        fi
+    else
+	curl --remote-name --silent --show-error --fail "${DOWNLOAD_URL}/${base_name}.tar.gz"
+    fi
+    if [ -n "$package_sha256" ]; then
+        echo "Verifying package integrity"
+        echo "$package_sha256  ${base_name}.tar.gz" | sha256sum --check - || exit "$?"
+    fi
+    tar --directory "${directory}" --extract --gunzip --file "${base_name}.tar.gz" --no-same-owner --strip-components=2
+    rm "${base_name}.tar.gz"
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libfile.sh

@@ -0,0 +1,139 @@
+#!/bin/bash
+#
+# Library for managing files
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/libos.sh
+
+# Functions
+
+########################
+# Replace a regex-matching string in a file
+# Arguments:
+#   $1 - filename
+#   $2 - match regex
+#   $3 - substitute regex
+#   $4 - use POSIX regex. Default: true
+# Returns:
+#   None
+#########################
+replace_in_file() {
+    local filename="${1:?filename is required}"
+    local match_regex="${2:?match regex is required}"
+    local substitute_regex="${3:?substitute regex is required}"
+    local posix_regex=${4:-true}
+
+    local result
+
+    # We should avoid using 'sed in-place' substitutions
+    # 1) They are not compatible with files mounted from ConfigMap(s)
+    # 2) We found incompatibility issues with Debian10 and "in-place" substitutions
+    local -r del=$'\001' # Use a non-printable character as a 'sed' delimiter to avoid issues
+    if [[ $posix_regex = true ]]; then
+        result="$(sed -E "s${del}${match_regex}${del}${substitute_regex}${del}g" "$filename")"
+    else
+        result="$(sed "s${del}${match_regex}${del}${substitute_regex}${del}g" "$filename")"
+    fi
+    echo "$result" > "$filename"
+}
+
+########################
+# Replace a regex-matching multiline string in a file
+# Arguments:
+#   $1 - filename
+#   $2 - match regex
+#   $3 - substitute regex
+# Returns:
+#   None
+#########################
+replace_in_file_multiline() {
+    local filename="${1:?filename is required}"
+    local match_regex="${2:?match regex is required}"
+    local substitute_regex="${3:?substitute regex is required}"
+
+    local result
+    local -r del=$'\001' # Use a non-printable character as a 'sed' delimiter to avoid issues
+    result="$(perl -pe "BEGIN{undef $/;} s${del}${match_regex}${del}${substitute_regex}${del}sg" "$filename")"
+    echo "$result" > "$filename"
+}
+
+########################
+# Remove a line in a file based on a regex
+# Arguments:
+#   $1 - filename
+#   $2 - match regex
+#   $3 - use POSIX regex. Default: true
+# Returns:
+#   None
+#########################
+remove_in_file() {
+    local filename="${1:?filename is required}"
+    local match_regex="${2:?match regex is required}"
+    local posix_regex=${3:-true}
+    local result
+
+    # We should avoid using 'sed in-place' substitutions
+    # 1) They are not compatible with files mounted from ConfigMap(s)
+    # 2) We found incompatibility issues with Debian10 and "in-place" substitutions
+    if [[ $posix_regex = true ]]; then
+        result="$(sed -E "/$match_regex/d" "$filename")"
+    else
+        result="$(sed "/$match_regex/d" "$filename")"
+    fi
+    echo "$result" > "$filename"
+}
+
+########################
+# Appends text after the last line matching a pattern
+# Arguments:
+#   $1 - file
+#   $2 - match regex
+#   $3 - contents to add
+# Returns:
+#   None
+#########################
+append_file_after_last_match() {
+    local file="${1:?missing file}"
+    local match_regex="${2:?missing pattern}"
+    local value="${3:?missing value}"
+
+    # We read the file in reverse, replace the first match (0,/pattern/s) and then reverse the results again
+    result="$(tac "$file" | sed -E "0,/($match_regex)/s||${value}\n\1|" | tac)"
+    echo "$result" > "$file"
+}
+
+########################
+# Wait until certain entry is present in a log file
+# Arguments:
+#   $1 - entry to look for
+#   $2 - log file
+#   $3 - max retries. Default: 12
+#   $4 - sleep between retries (in seconds). Default: 5
+# Returns:
+#   Boolean
+#########################
+wait_for_log_entry() {
+    local -r entry="${1:-missing entry}"
+    local -r log_file="${2:-missing log file}"
+    local -r retries="${3:-12}"
+    local -r interval_time="${4:-5}"
+    local attempt=0
+
+    check_log_file_for_entry() {
+        if ! grep -qE "$entry" "$log_file"; then
+            debug "Entry \"${entry}\" still not present in ${log_file} (attempt $((++attempt))/${retries})"
+            return 1
+        fi
+    }
+    debug "Checking that ${log_file} log file contains entry \"${entry}\""
+    if retry_while check_log_file_for_entry "$retries" "$interval_time"; then
+        debug "Found entry \"${entry}\" in ${log_file}"
+        true
+    else
+        error "Could not find entry \"${entry}\" in ${log_file} after ${retries} retries"
+        debug_execute cat "$log_file"
+        return 1
+    fi
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libfs.sh

@@ -0,0 +1,190 @@
+#!/bin/bash
+#
+# Library for file system actions
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/liblog.sh
+
+# Functions
+
+########################
+# Ensure a file/directory is owned (user and group) but the given user
+# Arguments:
+#   $1 - filepath
+#   $2 - owner
+# Returns:
+#   None
+#########################
+owned_by() {
+    local path="${1:?path is missing}"
+    local owner="${2:?owner is missing}"
+    local group="${3:-}"
+
+    if [[ -n $group ]]; then
+        chown "$owner":"$group" "$path"
+    else
+        chown "$owner":"$owner" "$path"
+    fi
+}
+
+########################
+# Ensure a directory exists and, optionally, is owned by the given user
+# Arguments:
+#   $1 - directory
+#   $2 - owner
+# Returns:
+#   None
+#########################
+ensure_dir_exists() {
+    local dir="${1:?directory is missing}"
+    local owner_user="${2:-}"
+    local owner_group="${3:-}"
+
+    mkdir -p "${dir}"
+    if [[ -n $owner_user ]]; then
+        owned_by "$dir" "$owner_user" "$owner_group"
+    fi
+}
+
+########################
+# Checks whether a directory is empty or not
+# arguments:
+#   $1 - directory
+# returns:
+#   boolean
+#########################
+is_dir_empty() {
+    local -r path="${1:?missing directory}"
+    # Calculate real path in order to avoid issues with symlinks
+    local -r dir="$(realpath "$path")"
+    if [[ ! -e "$dir" ]] || [[ -z "$(ls -A "$dir")" ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Checks whether a mounted directory is empty or not
+# arguments:
+#   $1 - directory
+# returns:
+#   boolean
+#########################
+is_mounted_dir_empty() {
+    local dir="${1:?missing directory}"
+
+    if is_dir_empty "$dir" || find "$dir" -mindepth 1 -maxdepth 1 -not -name ".snapshot" -not -name "lost+found" -exec false {} +; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Checks whether a file can be written to or not
+# arguments:
+#   $1 - file
+# returns:
+#   boolean
+#########################
+is_file_writable() {
+    local file="${1:?missing file}"
+    local dir
+    dir="$(dirname "$file")"
+
+    if [[ (-f "$file" && -w "$file") || (! -f "$file" && -d "$dir" && -w "$dir") ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Relativize a path
+# arguments:
+#   $1 - path
+#   $2 - base
+# returns:
+#   None
+#########################
+relativize() {
+    local -r path="${1:?missing path}"
+    local -r base="${2:?missing base}"
+    pushd "$base" >/dev/null || exit
+    realpath -q --no-symlinks --relative-base="$base" "$path" | sed -e 's|^/$|.|' -e 's|^/||'
+    popd >/dev/null || exit
+}
+
+########################
+# Configure permisions and ownership recursively
+# Globals:
+#   None
+# Arguments:
+#   $1 - paths (as a string).
+# Flags:
+#   -f|--file-mode - mode for directories.
+#   -d|--dir-mode - mode for files.
+#   -u|--user - user
+#   -g|--group - group
+# Returns:
+#   None
+#########################
+configure_permissions_ownership() {
+    local -r paths="${1:?paths is missing}"
+    local dir_mode=""
+    local file_mode=""
+    local user=""
+    local group=""
+
+    # Validate arguments
+    shift 1
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+        -f | --file-mode)
+            shift
+            file_mode="${1:?missing mode for files}"
+            ;;
+        -d | --dir-mode)
+            shift
+            dir_mode="${1:?missing mode for directories}"
+            ;;
+        -u | --user)
+            shift
+            user="${1:?missing user}"
+            ;;
+        -g | --group)
+            shift
+            group="${1:?missing group}"
+            ;;
+        *)
+            echo "Invalid command line flag $1" >&2
+            return 1
+            ;;
+        esac
+        shift
+    done
+
+    read -r -a filepaths <<<"$paths"
+    for p in "${filepaths[@]}"; do
+        if [[ -e "$p" ]]; then
+            if [[ -n $dir_mode ]]; then
+                find -L "$p" -type d -exec chmod "$dir_mode" {} \;
+            fi
+            if [[ -n $file_mode ]]; then
+                find -L "$p" -type f -exec chmod "$file_mode" {} \;
+            fi
+            if [[ -n $user ]] && [[ -n $group ]]; then
+                chown -LR "$user":"$group" "$p"
+            elif [[ -n $user ]] && [[ -z $group ]]; then
+                chown -LR "$user" "$p"
+            elif [[ -z $user ]] && [[ -n $group ]]; then
+                chgrp -LR "$group" "$p"
+            fi
+        else
+            stderr_print "$p does not exist"
+        fi
+    done
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libhook.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# Library to use for scripts expected to be used as Kubernetes lifecycle hooks
+
+# shellcheck disable=SC1091
+
+# Load generic libraries
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libos.sh
+
+# Override functions that log to stdout/stderr of the current process, so they print to process 1
+for function_to_override in stderr_print debug_execute; do
+    # Output is sent to output of process 1 and thus end up in the container log
+    # The hook output in general isn't saved
+    eval "$(declare -f "$function_to_override") >/proc/1/fd/1 2>/proc/1/fd/2"
+done

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/liblog.sh

@@ -0,0 +1,112 @@
+#!/bin/bash
+#
+# Library for logging functions
+
+# Constants
+RESET='\033[0m'
+RED='\033[38;5;1m'
+GREEN='\033[38;5;2m'
+YELLOW='\033[38;5;3m'
+MAGENTA='\033[38;5;5m'
+CYAN='\033[38;5;6m'
+
+# Functions
+
+########################
+# Print to STDERR
+# Arguments:
+#   Message to print
+# Returns:
+#   None
+#########################
+stderr_print() {
+    # 'is_boolean_yes' is defined in libvalidations.sh, but depends on this file so we cannot source it
+    local bool="${BITNAMI_QUIET:-false}"
+    # comparison is performed without regard to the case of alphabetic characters
+    shopt -s nocasematch
+    if ! [[ "$bool" = 1 || "$bool" =~ ^(yes|true)$ ]]; then
+        printf "%b\\n" "${*}" >&2
+    fi
+}
+
+########################
+# Log message
+# Arguments:
+#   Message to log
+# Returns:
+#   None
+#########################
+log() {
+    stderr_print "${CYAN}${MODULE:-} ${MAGENTA}$(date "+%T.%2N ")${RESET}${*}"
+}
+########################
+# Log an 'info' message
+# Arguments:
+#   Message to log
+# Returns:
+#   None
+#########################
+info() {
+    log "${GREEN}INFO ${RESET} ==> ${*}"
+}
+########################
+# Log message
+# Arguments:
+#   Message to log
+# Returns:
+#   None
+#########################
+warn() {
+    log "${YELLOW}WARN ${RESET} ==> ${*}"
+}
+########################
+# Log an 'error' message
+# Arguments:
+#   Message to log
+# Returns:
+#   None
+#########################
+error() {
+    log "${RED}ERROR${RESET} ==> ${*}"
+}
+########################
+# Log a 'debug' message
+# Globals:
+#   BITNAMI_DEBUG
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+debug() {
+    # 'is_boolean_yes' is defined in libvalidations.sh, but depends on this file so we cannot source it
+    local bool="${BITNAMI_DEBUG:-false}"
+    # comparison is performed without regard to the case of alphabetic characters
+    shopt -s nocasematch
+    if [[ "$bool" = 1 || "$bool" =~ ^(yes|true)$ ]]; then
+        log "${MAGENTA}DEBUG${RESET} ==> ${*}"
+    fi
+}
+
+########################
+# Indent a string
+# Arguments:
+#   $1 - string
+#   $2 - number of indentation characters (default: 4)
+#   $3 - indentation character (default: " ")
+# Returns:
+#   None
+#########################
+indent() {
+    local string="${1:-}"
+    local num="${2:?missing num}"
+    local char="${3:-" "}"
+    # Build the indentation unit string
+    local indent_unit=""
+    for ((i = 0; i < num; i++)); do
+        indent_unit="${indent_unit}${char}"
+    done
+    # shellcheck disable=SC2001
+    # Complex regex, see https://github.com/koalaman/shellcheck/wiki/SC2001#exceptions
+    echo "$string" | sed "s/^/${indent_unit}/"
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libnet.sh

@@ -0,0 +1,163 @@
+#!/bin/bash
+#
+# Library for network functions
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/liblog.sh
+
+# Functions
+
+########################
+# Resolve IP address for a host/domain (i.e. DNS lookup)
+# Arguments:
+#   $1 - Hostname to resolve
+#   $2 - IP address version (v4, v6), leave empty for resolving to any version
+# Returns:
+#   IP
+#########################
+dns_lookup() {
+    local host="${1:?host is missing}"
+    local ip_version="${2:-}"
+    getent "ahosts${ip_version}" "$host" | awk '/STREAM/ {print $1 }' | head -n 1
+}
+
+#########################
+# Wait for a hostname and return the IP
+# Arguments:
+#   $1 - hostname
+#   $2 - number of retries
+#   $3 - seconds to wait between retries
+# Returns:
+#   - IP address that corresponds to the hostname
+#########################
+wait_for_dns_lookup() {
+    local hostname="${1:?hostname is missing}"
+    local retries="${2:-5}"
+    local seconds="${3:-1}"
+    check_host() {
+        if [[ $(dns_lookup "$hostname") == "" ]]; then
+            false
+        else
+            true
+        fi
+    }
+    # Wait for the host to be ready
+    retry_while "check_host ${hostname}" "$retries" "$seconds"
+    dns_lookup "$hostname"
+}
+
+########################
+# Get machine's IP
+# Arguments:
+#   None
+# Returns:
+#   Machine IP
+#########################
+get_machine_ip() {
+    local -a ip_addresses
+    local hostname
+    hostname="$(hostname)"
+    read -r -a ip_addresses <<< "$(dns_lookup "$hostname" | xargs echo)"
+    if [[ "${#ip_addresses[@]}" -gt 1 ]]; then
+        warn "Found more than one IP address associated to hostname ${hostname}: ${ip_addresses[*]}, will use ${ip_addresses[0]}"
+    elif [[ "${#ip_addresses[@]}" -lt 1 ]]; then
+        error "Could not find any IP address associated to hostname ${hostname}"
+        exit 1
+    fi
+    echo "${ip_addresses[0]}"
+}
+
+########################
+# Check if the provided argument is a resolved hostname
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_hostname_resolved() {
+    local -r host="${1:?missing value}"
+    if [[ -n "$(dns_lookup "$host")" ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Parse URL
+# Globals:
+#   None
+# Arguments:
+#   $1 - uri - String
+#   $2 - component to obtain. Valid options (scheme, authority, userinfo, host, port, path, query or fragment) - String
+# Returns:
+#   String
+parse_uri() {
+    local uri="${1:?uri is missing}"
+    local component="${2:?component is missing}"
+
+    # Solution based on https://tools.ietf.org/html/rfc3986#appendix-B with
+    # additional sub-expressions to split authority into userinfo, host and port
+    # Credits to Patryk Obara (see https://stackoverflow.com/a/45977232/6694969)
+    local -r URI_REGEX='^(([^:/?#]+):)?(//((([^@/?#]+)@)?([^:/?#]+)(:([0-9]+))?))?(/([^?#]*))?(\?([^#]*))?(#(.*))?'
+    #                    ||            |  |||            |         | |            | |         |  |        | |
+    #                    |2 scheme     |  ||6 userinfo   7 host    | 9 port       | 11 rpath  |  13 query | 15 fragment
+    #                    1 scheme:     |  |5 userinfo@             8 :...         10 path     12 ?...     14 #...
+    #                                  |  4 authority
+    #                                  3 //...
+    local index=0
+    case "$component" in
+        scheme)
+            index=2
+            ;;
+        authority)
+            index=4
+            ;;
+        userinfo)
+            index=6
+            ;;
+        host)
+            index=7
+            ;;
+        port)
+            index=9
+            ;;
+        path)
+            index=10
+            ;;
+        query)
+            index=13
+            ;;
+        fragment)
+            index=14
+            ;;
+        *)
+            stderr_print "unrecognized component $component"
+            return 1
+            ;;
+    esac
+    [[ "$uri" =~ $URI_REGEX ]] && echo "${BASH_REMATCH[${index}]}"
+}
+
+########################
+# Wait for a HTTP connection to succeed
+# Globals:
+#   *
+# Arguments:
+#   $1 - URL to wait for
+#   $2 - Maximum amount of retries (optional)
+#   $3 - Time between retries (optional)
+# Returns:
+#   true if the HTTP connection succeeded, false otherwise
+#########################
+wait_for_http_connection() {
+    local url="${1:?missing url}"
+    local retries="${2:-}"
+    local sleep_time="${3:-}"
+    if ! retry_while "debug_execute curl --silent ${url}" "$retries" "$sleep_time"; then
+        error "Could not connect to ${url}"
+        return 1
+    fi
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libos.sh

@@ -0,0 +1,466 @@
+#!/bin/bash
+#
+# Library for operating system actions
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libfs.sh
+. /opt/bitnami/scripts/libvalidations.sh
+
+# Functions
+
+########################
+# Check if an user exists in the system
+# Arguments:
+#   $1 - user
+# Returns:
+#   Boolean
+#########################
+user_exists() {
+    local user="${1:?user is missing}"
+    id "$user" >/dev/null 2>&1
+}
+
+########################
+# Check if a group exists in the system
+# Arguments:
+#   $1 - group
+# Returns:
+#   Boolean
+#########################
+group_exists() {
+    local group="${1:?group is missing}"
+    getent group "$group" >/dev/null 2>&1
+}
+
+########################
+# Create a group in the system if it does not exist already
+# Arguments:
+#   $1 - group
+# Flags:
+#   -i|--gid - the ID for the new group
+#   -s|--system - Whether to create new user as system user (uid <= 999)
+# Returns:
+#   None
+#########################
+ensure_group_exists() {
+    local group="${1:?group is missing}"
+    local gid=""
+    local is_system_user=false
+
+    # Validate arguments
+    shift 1
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+        -i | --gid)
+            shift
+            gid="${1:?missing gid}"
+            ;;
+        -s | --system)
+            is_system_user=true
+            ;;
+        *)
+            echo "Invalid command line flag $1" >&2
+            return 1
+            ;;
+        esac
+        shift
+    done
+
+    if ! group_exists "$group"; then
+        local -a args=("$group")
+        if [[ -n "$gid" ]]; then
+            if group_exists "$gid"; then
+                error "The GID $gid is already in use." >&2
+                return 1
+            fi
+            args+=("--gid" "$gid")
+        fi
+        $is_system_user && args+=("--system")
+        groupadd "${args[@]}" >/dev/null 2>&1
+    fi
+}
+
+########################
+# Create an user in the system if it does not exist already
+# Arguments:
+#   $1 - user
+# Flags:
+#   -i|--uid - the ID for the new user
+#   -g|--group - the group the new user should belong to
+#   -a|--append-groups - comma-separated list of supplemental groups to append to the new user
+#   -h|--home - the home directory for the new user
+#   -s|--system - whether to create new user as system user (uid <= 999)
+# Returns:
+#   None
+#########################
+ensure_user_exists() {
+    local user="${1:?user is missing}"
+    local uid=""
+    local group=""
+    local append_groups=""
+    local home=""
+    local is_system_user=false
+
+    # Validate arguments
+    shift 1
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+        -i | --uid)
+            shift
+            uid="${1:?missing uid}"
+            ;;
+        -g | --group)
+            shift
+            group="${1:?missing group}"
+            ;;
+        -a | --append-groups)
+            shift
+            append_groups="${1:?missing append_groups}"
+            ;;
+        -h | --home)
+            shift
+            home="${1:?missing home directory}"
+            ;;
+        -s | --system)
+            is_system_user=true
+            ;;
+        *)
+            echo "Invalid command line flag $1" >&2
+            return 1
+            ;;
+        esac
+        shift
+    done
+
+    if ! user_exists "$user"; then
+        local -a user_args=("-N" "$user")
+        if [[ -n "$uid" ]]; then
+            if user_exists "$uid"; then
+                error "The UID $uid is already in use."
+                return 1
+            fi
+            user_args+=("--uid" "$uid")
+        else
+            $is_system_user && user_args+=("--system")
+        fi
+        useradd "${user_args[@]}" >/dev/null 2>&1
+    fi
+
+    if [[ -n "$group" ]]; then
+        local -a group_args=("$group")
+        $is_system_user && group_args+=("--system")
+        ensure_group_exists "${group_args[@]}"
+        usermod -g "$group" "$user" >/dev/null 2>&1
+    fi
+
+    if [[ -n "$append_groups" ]]; then
+        local -a groups
+        read -ra groups <<<"$(tr ',;' ' ' <<<"$append_groups")"
+        for group in "${groups[@]}"; do
+            ensure_group_exists "$group"
+            usermod -aG "$group" "$user" >/dev/null 2>&1
+        done
+    fi
+
+    if [[ -n "$home" ]]; then
+        mkdir -p "$home"
+        usermod -d "$home" "$user" >/dev/null 2>&1
+        configure_permissions_ownership "$home" -d "775" -f "664" -u "$user" -g "$group"
+    fi
+}
+
+########################
+# Check if the script is currently running as root
+# Arguments:
+#   $1 - user
+#   $2 - group
+# Returns:
+#   Boolean
+#########################
+am_i_root() {
+    if [[ "$(id -u)" = "0" ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Print OS metadata
+# Arguments:
+#   $1 - Flag name
+# Flags:
+#   --id - Distro ID
+#   --version - Distro version
+#   --branch - Distro branch
+#   --codename - Distro codename
+# Returns:
+#   String
+#########################
+get_os_metadata() {
+    local -r flag_name="${1:?missing flag}"
+    # Helper function
+    get_os_release_metadata() {
+        local -r env_name="${1:?missing environment variable name}"
+        (
+            . /etc/os-release
+            echo "${!env_name}"
+        )
+    }
+    case "$flag_name" in
+    --id)
+        get_os_release_metadata ID
+        ;;
+    --version)
+        get_os_release_metadata VERSION_ID
+        ;;
+    --branch)
+        get_os_release_metadata VERSION_ID | sed 's/\..*//'
+        ;;
+    --codename)
+        get_os_release_metadata VERSION_CODENAME
+        ;;
+    *)
+        error "Unknown flag ${flag_name}"
+        return 1
+        ;;
+    esac
+}
+
+########################
+# Get total memory available
+# Arguments:
+#   None
+# Returns:
+#   Memory in bytes
+#########################
+get_total_memory() {
+    echo $(($(grep MemTotal /proc/meminfo | awk '{print $2}') / 1024))
+}
+
+########################
+# Get machine size depending on specified memory
+# Globals:
+#   None
+# Arguments:
+#   None
+# Flags:
+#   --memory - memory size (optional)
+# Returns:
+#   Detected instance size
+#########################
+get_machine_size() {
+    local memory=""
+    # Validate arguments
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+        --memory)
+            shift
+            memory="${1:?missing memory}"
+            ;;
+        *)
+            echo "Invalid command line flag $1" >&2
+            return 1
+            ;;
+        esac
+        shift
+    done
+    if [[ -z "$memory" ]]; then
+        debug "Memory was not specified, detecting available memory automatically"
+        memory="$(get_total_memory)"
+    fi
+    sanitized_memory=$(convert_to_mb "$memory")
+    if [[ "$sanitized_memory" -gt 26000 ]]; then
+        echo 2xlarge
+    elif [[ "$sanitized_memory" -gt 13000 ]]; then
+        echo xlarge
+    elif [[ "$sanitized_memory" -gt 6000 ]]; then
+        echo large
+    elif [[ "$sanitized_memory" -gt 3000 ]]; then
+        echo medium
+    elif [[ "$sanitized_memory" -gt 1500 ]]; then
+        echo small
+    else
+        echo micro
+    fi
+}
+
+########################
+# Get machine size depending on specified memory
+# Globals:
+#   None
+# Arguments:
+#   $1 - memory size (optional)
+# Returns:
+#   Detected instance size
+#########################
+get_supported_machine_sizes() {
+    echo micro small medium large xlarge 2xlarge
+}
+
+########################
+# Convert memory size from string to amount of megabytes (i.e. 2G -> 2048)
+# Globals:
+#   None
+# Arguments:
+#   $1 - memory size
+# Returns:
+#   Result of the conversion
+#########################
+convert_to_mb() {
+    local amount="${1:-}"
+    if [[ $amount =~ ^([0-9]+)(m|M|g|G) ]]; then
+        size="${BASH_REMATCH[1]}"
+        unit="${BASH_REMATCH[2]}"
+        if [[ "$unit" = "g" || "$unit" = "G" ]]; then
+            amount="$((size * 1024))"
+        else
+            amount="$size"
+        fi
+    fi
+    echo "$amount"
+}
+
+#########################
+# Redirects output to /dev/null if debug mode is disabled
+# Globals:
+#   BITNAMI_DEBUG
+# Arguments:
+#   $@ - Command to execute
+# Returns:
+#   None
+#########################
+debug_execute() {
+    if is_boolean_yes "${BITNAMI_DEBUG:-false}"; then
+        "$@"
+    else
+        "$@" >/dev/null 2>&1
+    fi
+}
+
+########################
+# Retries a command a given number of times
+# Arguments:
+#   $1 - cmd (as a string)
+#   $2 - max retries. Default: 12
+#   $3 - sleep between retries (in seconds). Default: 5
+# Returns:
+#   Boolean
+#########################
+retry_while() {
+    local cmd="${1:?cmd is missing}"
+    local retries="${2:-12}"
+    local sleep_time="${3:-5}"
+    local return_value=1
+
+    read -r -a command <<<"$cmd"
+    for ((i = 1; i <= retries; i += 1)); do
+        "${command[@]}" && return_value=0 && break
+        sleep "$sleep_time"
+    done
+    return $return_value
+}
+
+########################
+# Generate a random string
+# Arguments:
+#   -t|--type - String type (ascii, alphanumeric, numeric), defaults to ascii
+#   -c|--count - Number of characters, defaults to 32
+# Arguments:
+#   None
+# Returns:
+#   None
+# Returns:
+#   String
+#########################
+generate_random_string() {
+    local type="ascii"
+    local count="32"
+    local filter
+    local result
+    # Validate arguments
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+        -t | --type)
+            shift
+            type="$1"
+            ;;
+        -c | --count)
+            shift
+            count="$1"
+            ;;
+        *)
+            echo "Invalid command line flag $1" >&2
+            return 1
+            ;;
+        esac
+        shift
+    done
+    # Validate type
+    case "$type" in
+    ascii)
+        filter="[:print:]"
+        ;;
+    alphanumeric)
+        filter="a-zA-Z0-9"
+        ;;
+    numeric)
+        filter="0-9"
+        ;;
+    *)
+        echo "Invalid type ${type}" >&2
+        return 1
+        ;;
+    esac
+    # Obtain count + 10 lines from /dev/urandom to ensure that the resulting string has the expected size
+    # Note there is a very small chance of strings starting with EOL character
+    # Therefore, the higher amount of lines read, this will happen less frequently
+    result="$(head -n "$((count + 10))" /dev/urandom | tr -dc "$filter" | head -c "$count")"
+    echo "$result"
+}
+
+########################
+# Create md5 hash from a string
+# Arguments:
+#   $1 - string
+# Returns:
+#   md5 hash - string
+#########################
+generate_md5_hash() {
+    local -r str="${1:?missing input string}"
+    echo -n "$str" | md5sum | awk '{print $1}'
+}
+
+########################
+# Create sha1 hash from a string
+# Arguments:
+#   $1 - string
+#   $2 - algorithm - 1 (default), 224, 256, 384, 512
+# Returns:
+#   sha1 hash - string
+#########################
+generate_sha_hash() {
+    local -r str="${1:?missing input string}"
+    local -r algorithm="${2:-1}"
+    echo -n "$str" | "sha${algorithm}sum" | awk '{print $1}'
+}
+
+########################
+# Converts a string to its hexadecimal representation
+# Arguments:
+#   $1 - string
+# Returns:
+#   hexadecimal representation of the string
+#########################
+convert_to_hex() {
+    local -r str=${1:?missing input string}
+    local -i iterator
+    local char
+    for ((iterator = 0; iterator < ${#str}; iterator++)); do
+        char=${str:iterator:1}
+        printf '%x' "'${char}"
+    done
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libpersistence.sh

@@ -0,0 +1,122 @@
+#!/bin/bash
+#
+# Bitnami persistence library
+# Used for bringing persistence capabilities to applications that don't have clear separation of data and logic
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/libfs.sh
+. /opt/bitnami/scripts/libos.sh
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libversion.sh
+
+# Functions
+
+########################
+# Persist an application directory
+# Globals:
+#   BITNAMI_ROOT_DIR
+#   BITNAMI_VOLUME_DIR
+# Arguments:
+#   $1 - App folder name
+#   $2 - List of app files to persist
+# Returns:
+#   true if all steps succeeded, false otherwise
+#########################
+persist_app() {
+    local -r app="${1:?missing app}"
+    local -a files_to_restore
+    read -r -a files_to_persist <<< "$(tr ',;:' ' ' <<< "$2")"
+    local -r install_dir="${BITNAMI_ROOT_DIR}/${app}"
+    local -r persist_dir="${BITNAMI_VOLUME_DIR}/${app}"
+    # Persist the individual files
+    if [[ "${#files_to_persist[@]}" -le 0 ]]; then
+        warn "No files are configured to be persisted"
+        return
+    fi
+    pushd "$install_dir" >/dev/null || exit
+    local file_to_persist_relative file_to_persist_destination file_to_persist_destination_folder
+    local -r tmp_file="/tmp/perms.acl"
+    for file_to_persist in "${files_to_persist[@]}"; do
+        if [[ ! -f "$file_to_persist" && ! -d "$file_to_persist" ]]; then
+            error "Cannot persist '${file_to_persist}' because it does not exist"
+            return 1
+        fi
+        file_to_persist_relative="$(relativize "$file_to_persist" "$install_dir")"
+        file_to_persist_destination="${persist_dir}/${file_to_persist_relative}"
+        file_to_persist_destination_folder="$(dirname "$file_to_persist_destination")"
+        # Get original permissions for existing files, which will be applied later
+        # Exclude the root directory with 'sed', to avoid issues when copying the entirety of it to a volume
+        getfacl -R "$file_to_persist_relative" | sed -E '/# file: (\..+|[^.])/,$!d' > "$tmp_file"
+        # Copy directories to the volume
+        ensure_dir_exists "$file_to_persist_destination_folder"
+        cp -Lr --preserve=links "$file_to_persist_relative" "$file_to_persist_destination_folder"
+        # Restore permissions
+        pushd "$persist_dir" >/dev/null || exit
+        if am_i_root; then
+            setfacl --restore="$tmp_file"
+        else
+            # When running as non-root, don't change ownership
+            setfacl --restore=<(grep -E -v '^# (owner|group):' "$tmp_file")
+        fi
+        popd >/dev/null || exit
+    done
+    popd >/dev/null || exit
+    rm -f "$tmp_file"
+    # Install the persisted files into the installation directory, via symlinks
+    restore_persisted_app "$@"
+}
+
+########################
+# Restore a persisted application directory
+# Globals:
+#   BITNAMI_ROOT_DIR
+#   BITNAMI_VOLUME_DIR
+#   FORCE_MAJOR_UPGRADE
+# Arguments:
+#   $1 - App folder name
+#   $2 - List of app files to restore
+# Returns:
+#   true if all steps succeeded, false otherwise
+#########################
+restore_persisted_app() {
+    local -r app="${1:?missing app}"
+    local -a files_to_restore
+    read -r -a files_to_restore <<< "$(tr ',;:' ' ' <<< "$2")"
+    local -r install_dir="${BITNAMI_ROOT_DIR}/${app}"
+    local -r persist_dir="${BITNAMI_VOLUME_DIR}/${app}"
+    # Restore the individual persisted files
+    if [[ "${#files_to_restore[@]}" -le 0 ]]; then
+        warn "No persisted files are configured to be restored"
+        return
+    fi
+    local file_to_restore_relative file_to_restore_origin file_to_restore_destination
+    for file_to_restore in "${files_to_restore[@]}"; do
+        file_to_restore_relative="$(relativize "$file_to_restore" "$install_dir")"
+        # We use 'realpath --no-symlinks' to ensure that the case of '.' is covered and the directory is removed
+        file_to_restore_origin="$(realpath --no-symlinks "${install_dir}/${file_to_restore_relative}")"
+        file_to_restore_destination="$(realpath --no-symlinks "${persist_dir}/${file_to_restore_relative}")"
+        rm -rf "$file_to_restore_origin"
+        ln -sfn "$file_to_restore_destination" "$file_to_restore_origin"
+    done
+}
+
+########################
+# Check if an application directory was already persisted
+# Globals:
+#   BITNAMI_VOLUME_DIR
+# Arguments:
+#   $1 - App folder name
+# Returns:
+#   true if all steps succeeded, false otherwise
+#########################
+is_app_initialized() {
+    local -r app="${1:?missing app}"
+    local -r persist_dir="${BITNAMI_VOLUME_DIR}/${app}"
+    if ! is_mounted_dir_empty "$persist_dir"; then
+        true
+    else
+        false
+    fi
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libservice.sh

@@ -0,0 +1,273 @@
+#!/bin/bash
+#
+# Library for managing services
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/libvalidations.sh
+. /opt/bitnami/scripts/liblog.sh
+
+# Functions
+
+########################
+# Read the provided pid file and returns a PID
+# Arguments:
+#   $1 - Pid file
+# Returns:
+#   PID
+#########################
+get_pid_from_file() {
+    local pid_file="${1:?pid file is missing}"
+
+    if [[ -f "$pid_file" ]]; then
+        if [[ -n "$(< "$pid_file")" ]] && [[ "$(< "$pid_file")" -gt 0 ]]; then
+            echo "$(< "$pid_file")"
+        fi
+    fi
+}
+
+########################
+# Check if a provided PID corresponds to a running service
+# Arguments:
+#   $1 - PID
+# Returns:
+#   Boolean
+#########################
+is_service_running() {
+    local pid="${1:?pid is missing}"
+
+    kill -0 "$pid" 2>/dev/null
+}
+
+########################
+# Stop a service by sending a termination signal to its pid
+# Arguments:
+#   $1 - Pid file
+#   $2 - Signal number (optional)
+# Returns:
+#   None
+#########################
+stop_service_using_pid() {
+    local pid_file="${1:?pid file is missing}"
+    local signal="${2:-}"
+    local pid
+
+    pid="$(get_pid_from_file "$pid_file")"
+    [[ -z "$pid" ]] || ! is_service_running "$pid" && return
+
+    if [[ -n "$signal" ]]; then
+        kill "-${signal}" "$pid"
+    else
+        kill "$pid"
+    fi
+
+    local counter=10
+    while [[ "$counter" -ne 0 ]] && is_service_running "$pid"; do
+        sleep 1
+        counter=$((counter - 1))
+    done
+}
+
+########################
+# Start cron daemon
+# Arguments:
+#   None
+# Returns:
+#   true if started correctly, false otherwise
+#########################
+cron_start() {
+    if [[ -x "/usr/sbin/cron" ]]; then
+        /usr/sbin/cron
+    elif [[ -x "/usr/sbin/crond" ]]; then
+        /usr/sbin/crond
+    else
+        false
+    fi
+}
+
+########################
+# Generate a cron configuration file for a given service
+# Arguments:
+#   $1 - Service name
+#   $2 - Command
+# Flags:
+#   --run-as - User to run as (default: root)
+#   --schedule - Cron schedule configuration (default: * * * * *)
+# Returns:
+#   None
+#########################
+generate_cron_conf() {
+    local service_name="${1:?service name is missing}"
+    local cmd="${2:?command is missing}"
+    local run_as="root"
+    local schedule="* * * * *"
+    local clean="true"
+
+    local clean="true"
+
+    # Parse optional CLI flags
+    shift 2
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            --run-as)
+                shift
+                run_as="$1"
+                ;;
+            --schedule)
+                shift
+                schedule="$1"
+                ;;
+            --no-clean)
+                clean="false"
+                ;;
+            *)
+                echo "Invalid command line flag ${1}" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+
+    mkdir -p /etc/cron.d
+    if "$clean"; then
+        echo "${schedule} ${run_as} ${cmd}" > /etc/cron.d/"$service_name"
+    else
+        echo "${schedule} ${run_as} ${cmd}" >> /etc/cron.d/"$service_name"
+    fi
+}
+
+########################
+# Remove a cron configuration file for a given service
+# Arguments:
+#   $1 - Service name
+# Returns:
+#   None
+#########################
+remove_cron_conf() {
+    local service_name="${1:?service name is missing}"
+    local cron_conf_dir="/etc/monit/conf.d"
+    rm -f "${cron_conf_dir}/${service_name}"
+}
+
+########################
+# Generate a monit configuration file for a given service
+# Arguments:
+#   $1 - Service name
+#   $2 - Pid file
+#   $3 - Start command
+#   $4 - Stop command
+# Flags:
+#   --disable - Whether to disable the monit configuration
+# Returns:
+#   None
+#########################
+generate_monit_conf() {
+    local service_name="${1:?service name is missing}"
+    local pid_file="${2:?pid file is missing}"
+    local start_command="${3:?start command is missing}"
+    local stop_command="${4:?stop command is missing}"
+    local monit_conf_dir="/etc/monit/conf.d"
+    local disabled="no"
+
+    # Parse optional CLI flags
+    shift 4
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            --disable)
+                disabled="yes"
+                ;;
+            *)
+                echo "Invalid command line flag ${1}" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+
+    is_boolean_yes "$disabled" && conf_suffix=".disabled"
+    mkdir -p "$monit_conf_dir"
+    cat >"${monit_conf_dir}/${service_name}.conf${conf_suffix:-}" <<EOF
+check process ${service_name}
+  with pidfile "${pid_file}"
+  start program = "${start_command}" with timeout 90 seconds
+  stop program = "${stop_command}" with timeout 90 seconds
+EOF
+}
+
+########################
+# Remove a monit configuration file for a given service
+# Arguments:
+#   $1 - Service name
+# Returns:
+#   None
+#########################
+remove_monit_conf() {
+    local service_name="${1:?service name is missing}"
+    local monit_conf_dir="/etc/monit/conf.d"
+    rm -f "${monit_conf_dir}/${service_name}.conf"
+}
+
+########################
+# Generate a logrotate configuration file
+# Arguments:
+#   $1 - Service name
+#   $2 - Log files pattern
+# Flags:
+#   --period - Period
+#   --rotations - Number of rotations to store
+#   --extra - Extra options (Optional)
+# Returns:
+#   None
+#########################
+generate_logrotate_conf() {
+    local service_name="${1:?service name is missing}"
+    local log_path="${2:?log path is missing}"
+    local period="weekly"
+    local rotations="150"
+    local extra=""
+    local logrotate_conf_dir="/etc/logrotate.d"
+    local var_name
+    # Parse optional CLI flags
+    shift 2
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            --period|--rotations|--extra)
+                var_name="$(echo "$1" | sed -e "s/^--//" -e "s/-/_/g")"
+                shift
+                declare "$var_name"="${1:?"$var_name" is missing}"
+                ;;
+            *)
+                echo "Invalid command line flag ${1}" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+
+    mkdir -p "$logrotate_conf_dir"
+    cat <<EOF | sed '/^\s*$/d' >"${logrotate_conf_dir}/${service_name}"
+${log_path} {
+  ${period}
+  rotate ${rotations}
+  dateext
+  compress
+  copytruncate
+  missingok
+$(indent "$extra" 2)
+}
+EOF
+}
+
+########################
+# Remove a logrotate configuration file
+# Arguments:
+#   $1 - Service name
+# Returns:
+#   None
+#########################
+remove_logrotate_conf() {
+    local service_name="${1:?service name is missing}"
+    local logrotate_conf_dir="/etc/logrotate.d"
+    rm -f "${logrotate_conf_dir}/${service_name}"
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libvalidations.sh

@@ -0,0 +1,264 @@
+#!/bin/bash
+#
+# Validation functions library
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/liblog.sh
+
+# Functions
+
+########################
+# Check if the provided argument is an integer
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_int() {
+    local -r int="${1:?missing value}"
+    if [[ "$int" =~ ^-?[0-9]+ ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Check if the provided argument is a positive integer
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_positive_int() {
+    local -r int="${1:?missing value}"
+    if is_int "$int" && (( "${int}" >= 0 )); then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Check if the provided argument is a boolean or is the string 'yes/true'
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_boolean_yes() {
+    local -r bool="${1:-}"
+    # comparison is performed without regard to the case of alphabetic characters
+    shopt -s nocasematch
+    if [[ "$bool" = 1 || "$bool" =~ ^(yes|true)$ ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Check if the provided argument is a boolean yes/no value
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_yes_no_value() {
+    local -r bool="${1:-}"
+    if [[ "$bool" =~ ^(yes|no)$ ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Check if the provided argument is a boolean true/false value
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_true_false_value() {
+    local -r bool="${1:-}"
+    if [[ "$bool" =~ ^(true|false)$ ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Check if the provided argument is a boolean 1/0 value
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_1_0_value() {
+    local -r bool="${1:-}"
+    if [[ "$bool" =~ ^[10]$ ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Check if the provided argument is an empty string or not defined
+# Arguments:
+#   $1 - Value to check
+# Returns:
+#   Boolean
+#########################
+is_empty_value() {
+    local -r val="${1:-}"
+    if [[ -z "$val" ]]; then
+        true
+    else
+        false
+    fi
+}
+
+########################
+# Validate if the provided argument is a valid port
+# Arguments:
+#   $1 - Port to validate
+# Returns:
+#   Boolean and error message
+#########################
+validate_port() {
+    local value
+    local unprivileged=0
+
+    # Parse flags
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            -unprivileged)
+                unprivileged=1
+                ;;
+            --)
+                shift
+                break
+                ;;
+            -*)
+                stderr_print "unrecognized flag $1"
+                return 1
+                ;;
+            *)
+                break
+                ;;
+        esac
+        shift
+    done
+
+    if [[ "$#" -gt 1 ]]; then
+        echo "too many arguments provided"
+        return 2
+    elif [[ "$#" -eq 0 ]]; then
+        stderr_print "missing port argument"
+        return 1
+    else
+        value=$1
+    fi
+
+    if [[ -z "$value" ]]; then
+        echo "the value is empty"
+        return 1
+    else
+        if ! is_int "$value"; then
+            echo "value is not an integer"
+            return 2
+        elif [[ "$value" -lt 0 ]]; then
+            echo "negative value provided"
+            return 2
+        elif [[ "$value" -gt 65535 ]]; then
+            echo "requested port is greater than 65535"
+            return 2
+        elif [[ "$unprivileged" = 1 && "$value" -lt 1024 ]]; then
+            echo "privileged port requested"
+            return 3
+        fi
+    fi
+}
+
+########################
+# Validate if the provided argument is a valid IPv4 address
+# Arguments:
+#   $1 - IP to validate
+# Returns:
+#   Boolean
+#########################
+validate_ipv4() {
+    local ip="${1:?ip is missing}"
+    local stat=1
+
+    if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+        read -r -a ip_array <<< "$(tr '.' ' ' <<< "$ip")"
+        [[ ${ip_array[0]} -le 255 && ${ip_array[1]} -le 255 \
+            && ${ip_array[2]} -le 255 && ${ip_array[3]} -le 255 ]]
+        stat=$?
+    fi
+    return $stat
+}
+
+########################
+# Validate a string format
+# Arguments:
+#   $1 - String to validate
+# Returns:
+#   Boolean
+#########################
+validate_string() {
+    local string
+    local min_length=-1
+    local max_length=-1
+
+    # Parse flags
+    while [ "$#" -gt 0 ]; do
+        case "$1" in
+            -min-length)
+                shift
+                min_length=${1:-}
+                ;;
+            -max-length)
+                shift
+                max_length=${1:-}
+                ;;
+            --)
+                shift
+                break
+                ;;
+            -*)
+                stderr_print "unrecognized flag $1"
+                return 1
+                ;;
+            *)
+                break
+                ;;
+        esac
+        shift
+    done
+
+    if [ "$#" -gt 1 ]; then
+        stderr_print "too many arguments provided"
+        return 2
+    elif [ "$#" -eq 0 ]; then
+        stderr_print "missing string"
+        return 1
+    else
+        string=$1
+    fi
+
+    if [[ "$min_length" -ge 0 ]] && [[ "${#string}" -lt "$min_length" ]]; then
+        echo "string length is less than $min_length"
+        return 1
+    fi
+    if [[ "$max_length" -ge 0 ]] && [[ "${#string}" -gt "$max_length" ]]; then
+        echo "string length is great than $max_length"
+        return 1
+    fi
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libversion.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+#
+# Library for managing versions strings
+
+# shellcheck disable=SC1091
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/liblog.sh
+
+# Functions
+########################
+# Gets semantic version
+# Arguments:
+#   $1 - version: string to extract major.minor.patch
+#   $2 - section: 1 to extract major, 2 to extract minor, 3 to extract patch
+# Returns:
+#   array with the major, minor and release
+#########################
+get_sematic_version () {
+    local version="${1:?version is required}"
+    local section="${2:?section is required}"
+    local -a version_sections
+
+    #Regex to parse versions: x.y.z
+    local -r regex='([0-9]+)(\.([0-9]+)(\.([0-9]+))?)?'
+
+    if [[ "$version" =~ $regex ]]; then
+        local i=1
+        local j=1
+        local n=${#BASH_REMATCH[*]}
+
+        while [[ $i -lt $n ]]; do
+            if [[ -n "${BASH_REMATCH[$i]}" ]] && [[ "${BASH_REMATCH[$i]:0:1}" != '.' ]];  then
+                version_sections[$j]=${BASH_REMATCH[$i]}
+                ((j++))
+            fi
+            ((i++))
+        done
+
+        local number_regex='^[0-9]+$'
+        if [[ "$section" =~ $number_regex ]] && (( section > 0 )) && (( section <= 3 )); then
+             echo "${version_sections[$section]}"
+             return
+        else
+            stderr_print "Section allowed values are: 1, 2, and 3"
+            return 1
+        fi
+    fi
+}

bitnami/etcd/3.3/debian-11/prebuildfs/opt/bitnami/scripts/libwebserver.sh

@@ -0,0 +1,458 @@
+#!/bin/bash
+#
+# Bitnami web server handler library
+
+# shellcheck disable=SC1090,SC1091
+
+# Load generic libraries
+. /opt/bitnami/scripts/liblog.sh
+
+########################
+# Execute a command (or list of commands) with the web server environment and library loaded
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_execute() {
+    local -r web_server="${1:?missing web server}"
+    shift
+    # Run program in sub-shell to avoid web server environment getting loaded when not necessary
+    (
+        . "/opt/bitnami/scripts/lib${web_server}.sh"
+        . "/opt/bitnami/scripts/${web_server}-env.sh"
+        "$@"
+    )
+}
+
+########################
+# Prints the list of enabled web servers
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_list() {
+    local -r -a supported_web_servers=(apache nginx)
+    local -a existing_web_servers=()
+    for web_server in "${supported_web_servers[@]}"; do
+        [[ -f "/opt/bitnami/scripts/${web_server}-env.sh" ]] && existing_web_servers+=("$web_server")
+    done
+    echo "${existing_web_servers[@]:-}"
+}
+
+########################
+# Prints the currently-enabled web server type (only one, in order of preference)
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_type() {
+    local -a web_servers
+    read -r -a web_servers <<< "$(web_server_list)"
+    echo "${web_servers[0]:-}"
+}
+
+########################
+# Validate that a supported web server is configured
+# Globals:
+#   None
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_validate() {
+    local error_code=0
+    local supported_web_servers=("apache" "nginx")
+
+    # Auxiliary functions
+    print_validation_error() {
+        error "$1"
+        error_code=1
+    }
+
+    if [[ -z "$(web_server_type)" || ! " ${supported_web_servers[*]} " == *" $(web_server_type) "* ]]; then
+        print_validation_error "Could not detect any supported web servers. It must be one of: ${supported_web_servers[*]}"
+    elif ! web_server_execute "$(web_server_type)" type -t "is_$(web_server_type)_running" >/dev/null; then
+        print_validation_error "Could not load the $(web_server_type) web server library from /opt/bitnami/scripts. Check that it exists and is readable."
+    fi
+
+    return "$error_code"
+}
+
+########################
+# Check whether the web server is running
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   true if the web server is running, false otherwise
+#########################
+is_web_server_running() {
+    "is_$(web_server_type)_running"
+}
+
+########################
+# Start web server
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_start() {
+    info "Starting $(web_server_type) in background"
+    "${BITNAMI_ROOT_DIR}/scripts/$(web_server_type)/start.sh"
+}
+
+########################
+# Stop web server
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_stop() {
+    info "Stopping $(web_server_type)"
+    "${BITNAMI_ROOT_DIR}/scripts/$(web_server_type)/stop.sh"
+}
+
+########################
+# Restart web server
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_restart() {
+    info "Restarting $(web_server_type)"
+    "${BITNAMI_ROOT_DIR}/scripts/$(web_server_type)/restart.sh"
+}
+
+########################
+# Reload web server
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_reload() {
+    "${BITNAMI_ROOT_DIR}/scripts/$(web_server_type)/reload.sh"
+}
+
+########################
+# Ensure a web server application configuration exists (i.e. Apache virtual host format or NGINX server block)
+# It serves as a wrapper for the specific web server function
+# Globals:
+#   *
+# Arguments:
+#   $1 - App name
+# Flags:
+#   --type - Application type, which has an effect on which configuration template to use
+#   --hosts - Host listen addresses
+#   --server-name - Server name
+#   --server-aliases - Server aliases
+#   --allow-remote-connections - Whether to allow remote connections or to require local connections
+#   --disable - Whether to render server configurations with a .disabled prefix
+#   --disable-http - Whether to render the app's HTTP server configuration with a .disabled prefix
+#   --disable-https - Whether to render the app's HTTPS server configuration with a .disabled prefix
+#   --http-port - HTTP port number
+#   --https-port - HTTPS port number
+#   --document-root - Path to document root directory
+# Apache-specific flags:
+#   --apache-additional-configuration - Additional vhost configuration (no default)
+#   --apache-additional-http-configuration - Additional HTTP vhost configuration (no default)
+#   --apache-additional-https-configuration - Additional HTTPS vhost configuration (no default)
+#   --apache-before-vhost-configuration - Configuration to add before the <VirtualHost> directive (no default)
+#   --apache-allow-override - Whether to allow .htaccess files (only allowed when --move-htaccess is set to 'no' and type is not defined)
+#   --apache-extra-directory-configuration - Extra configuration for the document root directory
+#   --apache-proxy-address - Address where to proxy requests
+#   --apache-proxy-configuration - Extra configuration for the proxy
+#   --apache-proxy-http-configuration - Extra configuration for the proxy HTTP vhost
+#   --apache-proxy-https-configuration - Extra configuration for the proxy HTTPS vhost
+#   --apache-move-htaccess - Move .htaccess files to a common place so they can be loaded during Apache startup (only allowed when type is not defined)
+# NGINX-specific flags:
+#   --nginx-additional-configuration - Additional server block configuration (no default)
+#   --nginx-external-configuration - Configuration external to server block (no default)
+# Returns:
+#   true if the configuration was enabled, false otherwise
+########################
+ensure_web_server_app_configuration_exists() {
+    local app="${1:?missing app}"
+    shift
+    local -a apache_args nginx_args web_servers args_var
+    apache_args=("$app")
+    nginx_args=("$app")
+    # Validate arguments
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            # Common flags
+            --disable \
+            | --disable-http \
+            | --disable-https \
+            )
+                apache_args+=("$1")
+                nginx_args+=("$1")
+                ;;
+            --hosts \
+            | --server-name \
+            | --server-aliases \
+            | --type \
+            | --allow-remote-connections \
+            | --http-port \
+            | --https-port \
+            | --document-root \
+            )
+                apache_args+=("$1" "${2:?missing value}")
+                nginx_args+=("$1" "${2:?missing value}")
+                shift
+                ;;
+
+            # Specific Apache flags
+            --apache-additional-configuration \
+            | --apache-additional-http-configuration \
+            | --apache-additional-https-configuration \
+            | --apache-before-vhost-configuration \
+            | --apache-allow-override \
+            | --apache-extra-directory-configuration \
+            | --apache-proxy-address \
+            | --apache-proxy-configuration \
+            | --apache-proxy-http-configuration \
+            | --apache-proxy-https-configuration \
+            | --apache-move-htaccess \
+            )
+                apache_args+=("${1//apache-/}" "${2:?missing value}")
+                shift
+                ;;
+
+            # Specific NGINX flags
+            --nginx-additional-configuration \
+            | --nginx-external-configuration)
+                nginx_args+=("${1//nginx-/}" "${2:?missing value}")
+                shift
+                ;;
+
+            *)
+                echo "Invalid command line flag $1" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+    read -r -a web_servers <<< "$(web_server_list)"
+    for web_server in "${web_servers[@]}"; do
+        args_var="${web_server}_args[@]"
+        web_server_execute "$web_server" "ensure_${web_server}_app_configuration_exists" "${!args_var}"
+    done
+}
+
+########################
+# Ensure a web server application configuration does not exist anymore (i.e. Apache virtual host format or NGINX server block)
+# It serves as a wrapper for the specific web server function
+# Globals:
+#   *
+# Arguments:
+#   $1 - App name
+# Returns:
+#   true if the configuration was disabled, false otherwise
+########################
+ensure_web_server_app_configuration_not_exists() {
+    local app="${1:?missing app}"
+    local -a web_servers
+    read -r -a web_servers <<< "$(web_server_list)"
+    for web_server in "${web_servers[@]}"; do
+        web_server_execute "$web_server" "ensure_${web_server}_app_configuration_not_exists" "$app"
+    done
+}
+
+########################
+# Ensure the web server loads the configuration for an application in a URL prefix
+# It serves as a wrapper for the specific web server function
+# Globals:
+#   *
+# Arguments:
+#   $1 - App name
+# Flags:
+#   --allow-remote-connections - Whether to allow remote connections or to require local connections
+#   --document-root - Path to document root directory
+#   --prefix - URL prefix from where it will be accessible (i.e. /myapp)
+#   --type - Application type, which has an effect on what configuration template will be used
+# Apache-specific flags:
+#   --apache-additional-configuration - Additional vhost configuration (no default)
+#   --apache-allow-override - Whether to allow .htaccess files (only allowed when --move-htaccess is set to 'no')
+#   --apache-extra-directory-configuration - Extra configuration for the document root directory
+#   --apache-move-htaccess - Move .htaccess files to a common place so they can be loaded during Apache startup
+# NGINX-specific flags:
+#   --nginx-additional-configuration - Additional server block configuration (no default)
+# Returns:
+#   true if the configuration was enabled, false otherwise
+########################
+ensure_web_server_prefix_configuration_exists() {
+    local app="${1:?missing app}"
+    shift
+    local -a apache_args nginx_args web_servers args_var
+    apache_args=("$app")
+    nginx_args=("$app")
+    # Validate arguments
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            # Common flags
+            --allow-remote-connections \
+            | --document-root \
+            | --prefix \
+            | --type \
+            )
+                apache_args+=("$1" "${2:?missing value}")
+                nginx_args+=("$1" "${2:?missing value}")
+                shift
+                ;;
+
+            # Specific Apache flags
+            --apache-additional-configuration \
+            | --apache-allow-override \
+            | --apache-extra-directory-configuration \
+            | --apache-move-htaccess \
+            )
+                apache_args+=("${1//apache-/}" "$2")
+                shift
+                ;;
+
+            # Specific NGINX flags
+            --nginx-additional-configuration)
+                nginx_args+=("${1//nginx-/}" "$2")
+                shift
+                ;;
+
+            *)
+                echo "Invalid command line flag $1" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+    read -r -a web_servers <<< "$(web_server_list)"
+    for web_server in "${web_servers[@]}"; do
+        args_var="${web_server}_args[@]"
+        web_server_execute "$web_server" "ensure_${web_server}_prefix_configuration_exists" "${!args_var}"
+    done
+}
+
+########################
+# Ensure a web server application configuration is updated with the runtime configuration (i.e. ports)
+# It serves as a wrapper for the specific web server function
+# Globals:
+#   *
+# Arguments:
+#   $1 - App name
+# Flags:
+#   --hosts - Host listen addresses
+#   --server-name - Server name
+#   --server-aliases - Server aliases
+#   --enable-http - Enable HTTP app configuration (if not enabled already)
+#   --enable-https - Enable HTTPS app configuration (if not enabled already)
+#   --disable-http - Disable HTTP app configuration (if not disabled already)
+#   --disable-https - Disable HTTPS app configuration (if not disabled already)
+#   --http-port - HTTP port number
+#   --https-port - HTTPS port number
+# Returns:
+#   true if the configuration was updated, false otherwise
+########################
+web_server_update_app_configuration() {
+    local app="${1:?missing app}"
+    shift
+    local -a args web_servers
+    args=("$app")
+    # Validate arguments
+    while [[ "$#" -gt 0 ]]; do
+        case "$1" in
+            # Common flags
+            --enable-http \
+            | --enable-https \
+            | --disable-http \
+            | --disable-https \
+            )
+                args+=("$1")
+                ;;
+            --hosts \
+            | --server-name \
+            | --server-aliases \
+            | --http-port \
+            | --https-port \
+            )
+                args+=("$1" "${2:?missing value}")
+                shift
+                ;;
+
+            *)
+                echo "Invalid command line flag $1" >&2
+                return 1
+                ;;
+        esac
+        shift
+    done
+    read -r -a web_servers <<< "$(web_server_list)"
+    for web_server in "${web_servers[@]}"; do
+        web_server_execute "$web_server" "${web_server}_update_app_configuration" "${args[@]}"
+    done
+}
+
+########################
+# Enable loading page, which shows users that the initialization process is not yet completed
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_enable_loading_page() {
+    ensure_web_server_app_configuration_exists "__loading" --hosts "_default_" \
+        --apache-additional-configuration "
+# Show a HTTP 503 Service Unavailable page by default
+RedirectMatch 503 ^/$
+# Show index.html if server is answering with 404 Not Found or 503 Service Unavailable status codes
+ErrorDocument 404 /index.html
+ErrorDocument 503 /index.html" \
+        --nginx-additional-configuration "
+# Show a HTTP 503 Service Unavailable page by default
+location / {
+  return 503;
+}
+# Show index.html if server is answering with 404 Not Found or 503 Service Unavailable status codes
+error_page 404 @installing;
+error_page 503 @installing;
+location @installing {
+  rewrite ^(.*)$ /index.html break;
+}"
+    web_server_reload
+}
+
+########################
+# Enable loading page, which shows users that the initialization process is not yet completed
+# Globals:
+#   *
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+web_server_disable_install_page() {
+    ensure_web_server_app_configuration_not_exists "__loading"
+    web_server_reload
+}

bitnami/etcd/3.3/debian-11/prebuildfs/usr/sbin/install_packages

@@ -0,0 +1,24 @@
+#!/bin/sh
+set -e
+set -u
+export DEBIAN_FRONTEND=noninteractive
+n=0
+max=2
+until [ $n -gt $max ]; do
+    set +e
+    (
+      apt-get update -qq &&
+      apt-get install -y --no-install-recommends "$@"
+    )
+    CODE=$?
+    set -e
+    if [ $CODE -eq 0 ]; then
+        break
+    fi
+    if [ $n -eq $max ]; then
+        exit $CODE
+    fi
+    echo "apt failed, retrying"
+    n=$(($n + 1))
+done
+rm -r /var/lib/apt/lists /var/cache/apt/archives

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd-env.sh

@@ -0,0 +1,107 @@
+#!/bin/bash
+#
+# Environment configuration for etcd
+
+# The values for all environment variables will be set in the below order of precedence
+# 1. Custom environment variables defined below after Bitnami defaults
+# 2. Constants defined in this file (environment variables with no default), i.e. BITNAMI_ROOT_DIR
+# 3. Environment variables overridden via external files using *_FILE variables (see below)
+# 4. Environment variables set externally (i.e. current Bash context/Dockerfile/userdata)
+
+# Load logging library
+# shellcheck disable=SC1090,SC1091
+. /opt/bitnami/scripts/liblog.sh
+
+export BITNAMI_ROOT_DIR="/opt/bitnami"
+export BITNAMI_VOLUME_DIR="/bitnami"
+
+# Logging configuration
+export MODULE="${MODULE:-etcd}"
+export BITNAMI_DEBUG="${BITNAMI_DEBUG:-false}"
+
+# By setting an environment variable matching *_FILE to a file path, the prefixed environment
+# variable will be overridden with the value specified in that file
+etcd_env_vars=(
+    ETCD_INIT_SNAPSHOTS_DIR
+    ALLOW_NONE_AUTHENTICATION
+    ETCD_ROOT_PASSWORD
+    ETCD_CLUSTER_DOMAIN
+    ETCD_START_FROM_SNAPSHOT
+    ETCD_DISASTER_RECOVERY
+    ETCD_ON_K8S
+    ETCD_INIT_SNAPSHOT_FILENAME
+    ETCDCTL_API
+    ETCD_NAME
+    ETCD_LOG_LEVEL
+    ETCD_LISTEN_CLIENT_URLS
+    ETCD_ADVERTISE_CLIENT_URLS
+    ETCD_INITIAL_CLUSTER
+    ETCD_INITIAL_CLUSTER_STATE
+    ETCD_LISTEN_PEER_URLS
+    ETCD_INITIAL_ADVERTISE_PEER_URLS
+    ETCD_INITIAL_CLUSTER_TOKEN
+    ETCD_AUTO_TLS
+    ETCD_CERT_FILE
+    ETCD_KEY_FILE
+    ETCD_TRUSTED_CA_FILE
+    ETCD_CLIENT_CERT_AUTH
+    ETCD_PEER_AUTO_TLS
+)
+for env_var in "${etcd_env_vars[@]}"; do
+    file_env_var="${env_var}_FILE"
+    if [[ -n "${!file_env_var:-}" ]]; then
+        if [[ -r "${!file_env_var:-}" ]]; then
+            export "${env_var}=$(< "${!file_env_var}")"
+            unset "${file_env_var}"
+        else
+            warn "Skipping export of '${env_var}'. '${!file_env_var:-}' is not readable."
+        fi
+    fi
+done
+unset etcd_env_vars
+
+# Paths
+export ETCD_BASE_DIR="/opt/bitnami/etcd"
+export ETCD_VOLUME_DIR="/bitnami/etcd"
+export ETCD_BIN_DIR="${ETCD_BASE_DIR}/bin"
+export ETCD_DATA_DIR="${ETCD_VOLUME_DIR}/data"
+export ETCD_CONF_DIR="${ETCD_BASE_DIR}/conf"
+export ETCD_TMP_DIR="${ETCD_BASE_DIR}/tmp"
+export ETCD_CONF_FILE="${ETCD_CONF_DIR}/etcd.yaml"
+export ETCD_SNAPSHOTS_DIR="/snapshots"
+export ETCD_INIT_SNAPSHOTS_DIR="${ETCD_INIT_SNAPSHOTS_DIR:-/init-snapshot}"
+export ETCD_NEW_MEMBERS_ENV_FILE="${ETCD_DATA_DIR}/new_member_envs"
+export PATH="${ETCD_BIN_DIR}:${PATH}"
+
+# System users (when running with a privileged user)
+export ETCD_DAEMON_USER="etcd"
+export ETCD_DAEMON_GROUP="etcd"
+
+# etcd settings
+export ALLOW_NONE_AUTHENTICATION="${ALLOW_NONE_AUTHENTICATION:-no}"
+export ETCD_ROOT_PASSWORD="${ETCD_ROOT_PASSWORD:-}"
+export ETCD_CLUSTER_DOMAIN="${ETCD_CLUSTER_DOMAIN:-}"
+export ETCD_START_FROM_SNAPSHOT="${ETCD_START_FROM_SNAPSHOT:-no}"
+export ETCD_DISASTER_RECOVERY="${ETCD_DISASTER_RECOVERY:-no}"
+export ETCD_ON_K8S="${ETCD_ON_K8S:-no}"
+export ETCD_INIT_SNAPSHOT_FILENAME="${ETCD_INIT_SNAPSHOT_FILENAME:-}"
+export ETCDCTL_API="${ETCDCTL_API:-3}"
+
+# etcd native environment variables (see https://etcd.io/docs/current/op-guide/configuration)
+export ETCD_NAME="${ETCD_NAME:-}"
+export ETCD_LOG_LEVEL="${ETCD_LOG_LEVEL:-info}"
+export ETCD_LISTEN_CLIENT_URLS="${ETCD_LISTEN_CLIENT_URLS:-http://0.0.0.0:2379}"
+export ETCD_ADVERTISE_CLIENT_URLS="${ETCD_ADVERTISE_CLIENT_URLS:-http://127.0.0.1:2379}"
+export ETCD_INITIAL_CLUSTER="${ETCD_INITIAL_CLUSTER:-}"
+export ETCD_INITIAL_CLUSTER_STATE="${ETCD_INITIAL_CLUSTER_STATE:-}"
+export ETCD_LISTEN_PEER_URLS="${ETCD_LISTEN_PEER_URLS:-}"
+export ETCD_INITIAL_ADVERTISE_PEER_URLS="${ETCD_INITIAL_ADVERTISE_PEER_URLS:-}"
+export ETCD_INITIAL_CLUSTER_TOKEN="${ETCD_INITIAL_CLUSTER_TOKEN:-}"
+export ETCD_AUTO_TLS="${ETCD_AUTO_TLS:-false}"
+export ETCD_CERT_FILE="${ETCD_CERT_FILE:-}"
+export ETCD_KEY_FILE="${ETCD_KEY_FILE:-}"
+export ETCD_TRUSTED_CA_FILE="${ETCD_TRUSTED_CA_FILE:-}"
+export ETCD_CLIENT_CERT_AUTH="${ETCD_CLIENT_CERT_AUTH:-false}"
+export ETCD_PEER_AUTO_TLS="${ETCD_PEER_AUTO_TLS:-false}"
+
+# Custom environment variables may be defined below

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/entrypoint.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o nounset
+set -o pipefail
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/libbitnami.sh
+. /opt/bitnami/scripts/liblog.sh
+
+# Load etcd environment variables
+. /opt/bitnami/scripts/etcd-env.sh
+
+print_welcome_page
+
+if [[ "$1" = "/opt/bitnami/scripts/etcd/run.sh" ]]; then
+    info "** Starting etcd setup **"
+    /opt/bitnami/scripts/etcd/setup.sh
+    info "** etcd setup finished! **"
+fi
+
+echo ""
+exec "$@"

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/healthcheck.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+# Load libraries
+. /opt/bitnami/scripts/libos.sh
+. /opt/bitnami/scripts/libnet.sh
+. /opt/bitnami/scripts/libetcd.sh
+
+# Load etcd environment settings
+. /opt/bitnami/scripts/etcd-env.sh
+
+read -r -a advertised_array <<< "$(tr ',;' ' ' <<< "$ETCD_ADVERTISE_CLIENT_URLS")"
+host="$(parse_uri "${advertised_array[0]}" "host")"
+port="$(parse_uri "${advertised_array[0]}" "port")"
+read -r -a extra_flags <<< "$(etcdctl_auth_flags)"
+extra_flags+=("--endpoints=${host}:${port}")
+if [[ $ETCD_AUTO_TLS = true ]]; then
+     extra_flags+=("--insecure-skip-tls-verify")
+fi
+if etcdctl endpoint health "${extra_flags[@]}"; then
+    exit 0
+else
+    error "Unhealthy endpoint!"
+    exit 1
+fi

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/postunpack.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o nounset
+set -o pipefail
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/libfs.sh
+
+# Load etcd environment variables
+. /opt/bitnami/scripts/etcd-env.sh
+
+for dir in "$ETCD_BIN_DIR" "$ETCD_DATA_DIR" "${ETCD_BASE_DIR}/certs"; do
+    ensure_dir_exists "$dir"
+done
+chmod -R g+rwX "$ETCD_DATA_DIR" "${ETCD_BASE_DIR}/certs"

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/prestop.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o pipefail
+set -o nounset
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/libetcd.sh
+
+# Load etcd environment settings
+. /opt/bitnami/scripts/etcd-env.sh
+
+endpoints="$(etcdctl_get_endpoints true)"
+if is_empty_value "${endpoints}"; then
+    exit 0
+fi
+read -r -a extra_flags <<< "$(etcdctl_auth_flags)"
+extra_flags+=("--endpoints=${endpoints}" "--debug=true")
+# We use 'sync' to ensure memory buffers are flushed to disk
+# so we reduce the chances that the "member_removal.log" file is empty.
+# ref: https://man7.org/linux/man-pages/man1/sync.1.html
+etcdctl member remove "$(cat "${ETCD_DATA_DIR}/member_id")" "${extra_flags[@]}" > "$(dirname "$ETCD_DATA_DIR")/member_removal.log"
+sync -d "$(dirname "$ETCD_DATA_DIR")/member_removal.log"

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/run.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# shellcheck disable=SC1090,SC1091
+
+set -o errexit
+set -o nounset
+set -o pipefail
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libos.sh
+. /opt/bitnami/scripts/libvalidations.sh
+. /opt/bitnami/scripts/libetcd.sh
+
+# Load etcd environment variables
+. /opt/bitnami/scripts/etcd-env.sh
+
+! is_empty_value "$ETCD_ROOT_PASSWORD" && unset ETCD_ROOT_PASSWORD
+if [[ -f "$ETCD_NEW_MEMBERS_ENV_FILE" ]]; then
+    debug "Loading env vars of existing cluster"
+    . "$ETCD_NEW_MEMBERS_ENV_FILE"
+else
+    # We do not rely on the original value of ETCD_INITIAL_CLUSTER even
+    # when bootstrapping a new cluster since we cannot assume
+    # that all nodes will come-up healthy
+    ETCD_INITIAL_CLUSTER="$(recalculate_initial_cluster)"
+    export ETCD_INITIAL_CLUSTER
+fi
+
+declare -a cmd=("etcd")
+# If provided, run using configuration file
+# Using a configuration file will cause etcd to ignore other flags and environment variables
+[[ -f "$ETCD_CONF_FILE" ]] && cmd+=("--config-file" "$ETCD_CONF_FILE")
+cmd+=("$@")
+
+info "** Starting etcd **"
+if am_i_root; then
+    exec gosu "$ETCD_DAEMON_USER" "${cmd[@]}"
+else
+    exec "${cmd[@]}"
+fi

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/setup.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o nounset
+set -o pipefail
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/libos.sh
+. /opt/bitnami/scripts/libetcd.sh
+
+# Load etcd environment settings
+. /opt/bitnami/scripts/etcd-env.sh
+
+# Ensure etcd environment settings are valid
+etcd_validate
+# Ensure etcd is stopped when this script ends.
+trap "etcd_stop" EXIT
+# Ensure 'daemon' user exists when running as 'root'
+am_i_root && ensure_user_exists "$ETCD_DAEMON_USER" --group "$ETCD_DAEMON_GROUP"
+# Ensure etcd is initialized
+etcd_initialize

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/etcd/snapshot.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+# Load libraries
+. /opt/bitnami/scripts/libfs.sh
+. /opt/bitnami/scripts/libos.sh
+. /opt/bitnami/scripts/libetcd.sh
+
+# Load etcd environment settings
+. /opt/bitnami/scripts/etcd-env.sh
+
+ensure_dir_exists "/snapshots"
+endpoints="$(etcdctl_get_endpoints)"
+read -r -a endpoints_array <<< "$(tr ',;' ' ' <<< "$endpoints")"
+for e in "${endpoints_array[@]}"; do
+    debug "Using endpoint $e"
+    read -r -a extra_flags <<< "$(etcdctl_auth_flags)"
+    extra_flags+=("--endpoints=$e")
+    if etcdctl endpoint health "${extra_flags[@]}"; then
+        info "Snapshotting the keyspace"
+        current_time="$(date -u "+%Y-%m-%d_%H-%M")"
+        etcdctl snapshot save "/snapshots/db-${current_time}" "${extra_flags[@]}"
+        find /snapshots/ -maxdepth 1 -type f -name 'db-*' \! -name "db-${current_time}" \
+            | sort -r \
+            | tail -n+$((1 + ETCD_SNAPSHOT_HISTORY_LIMIT)) \
+            | xargs rm -f
+        exit 0
+    else
+        warn "etcd endpoint $e not healthy. Trying a different endpoint"
+    fi
+done
+error "all etcd endpoints are unhealthy!"
+exit 1

bitnami/etcd/3.3/debian-11/rootfs/opt/bitnami/scripts/libetcd.sh

@@ -0,0 +1,687 @@
+#!/bin/bash
+#
+# Bitnami etcd library
+
+# shellcheck disable=SC1090,SC1091,SC2119,SC2120
+
+# Load Generic Libraries
+. /opt/bitnami/scripts/libfile.sh
+. /opt/bitnami/scripts/libfs.sh
+. /opt/bitnami/scripts/liblog.sh
+. /opt/bitnami/scripts/libos.sh
+. /opt/bitnami/scripts/libnet.sh
+. /opt/bitnami/scripts/libservice.sh
+
+# Functions
+
+########################
+# Write a configuration setting value
+# Globals:
+#   ETCD_CONF_FILE
+# Arguments:
+#   $1 - key
+#   $2 - value
+#   $3 - YAML type (string, int or bool)
+# Returns:
+#   None
+#########################
+etcd_conf_write() {
+    local -r key="${1:?Missing key}"
+    local -r value="${2:-}"
+    local -r type="${3:-string}"
+    local -r tempfile=$(mktemp)
+
+    [[ -z "$value" ]] && return
+    [[ ! -f "$ETCD_CONF_FILE" ]] && touch "$ETCD_CONF_FILE"
+    case "$type" in
+    string)
+        yq eval "(.${key}) |= \"${value}\"" "$ETCD_CONF_FILE" >"$tempfile"
+        ;;
+    bool)
+        yq eval "(.${key}) |= (\"${value}\" | test(\"true\"))" "$ETCD_CONF_FILE" >"$tempfile"
+        ;;
+    raw)
+        yq eval "(.${key}) |= ${value}" "$ETCD_CONF_FILE" >"$tempfile"
+        ;;
+    *)
+        error "Type unknown: ${type}"
+        return 1
+        ;;
+    esac
+    cp "$tempfile" "$ETCD_CONF_FILE"
+}
+
+########################
+# Creates etcd configuration file from environment variables
+# Globals:
+#   ETCD_CFG_*
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+etcd_setup_from_environment_variables() {
+    ## Except for Client and Peer TLS configuration,
+    ## all etcd settings consists of ETCD_FLAG_NAME
+    ## transformed into flag-name and configured under the yaml config root.
+    local -a client_tls_values=(
+        "ETCD_CFG_CERT_FILE"
+        "ETCD_CFG_KEY_FILE"
+        "ETCD_CFG_CLIENT_CERT_AUTH"
+        "ETCD_CFG_TRUSTED_CA_FILE"
+        "ETCD_CFG_AUTO_TLS"
+        "ETCD_CFG_CA_FILE"
+    )
+    info "Generating etcd config file using env variables"
+    # Map environment variables to config properties for cassandra-env.sh
+    for var in "${!ETCD_CFG_@}"; do
+        value="${!var:-}"
+        if [[ -n "$value" ]]; then
+            type="string"
+            # Detect if value is digit or bool
+            if [[ "$value" =~ ^[+-]?[0-9]+([.][0-9]+)?$ || "$value" =~ ^(true|false)$ ]]; then
+                type="raw"
+            fi
+            if [[ ${client_tls_values[*]} =~ ${var} ]]; then
+                key="$(echo "$var" | sed -e 's/^ETCD_CFG_//g' -e 's/_/-/g' | tr '[:upper:]' '[:lower:]')"
+                etcd_conf_write "client-transport-security.${key}" "$value" "$type"
+            elif [[ "$var" =~ "ETCD_CFG_CLIENT_" ]]; then
+                key="$(echo "$var" | sed -e 's/^ETCD_CFG_CLIENT_//g' -e 's/_/-/g' | tr '[:upper:]' '[:lower:]')"
+                etcd_conf_write "client-transport-security.${key}" "$value" "$type"
+            elif [[ "$var" =~ "ETCD_CFG_PEER_" ]]; then
+                key="$(echo "$var" | sed -e 's/^ETCD_CFG_PEER_//g' -e 's/_/-/g' | tr '[:upper:]' '[:lower:]')"
+                etcd_conf_write "peer-transport-security.${key}" "$value" "$type"
+            else
+                # shellcheck disable=SC2001
+                key="$(echo "$var" | sed -e 's/^ETCD_CFG_//g' -e 's/_/-/g' | tr '[:upper:]' '[:lower:]')"
+                etcd_conf_write "$key" "$value" "$type"
+            fi
+        fi
+    done
+    if am_i_root; then
+        chown "$ETCD_DAEMON_USER" "$ETCD_CONF_FILE"
+    fi
+}
+
+########################
+# Validate settings in ETCD_* environment variables
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+etcd_validate() {
+    info "Validating settings in ETCD_* env vars.."
+    local error_code=0
+
+    # Auxiliary functions
+    print_validation_error() {
+        error "$1"
+        error_code=1
+    }
+
+    if is_boolean_yes "$ALLOW_NONE_AUTHENTICATION"; then
+        warn "You set the environment variable ALLOW_NONE_AUTHENTICATION=${ALLOW_NONE_AUTHENTICATION}. For safety reasons, do not use this flag in a production environment."
+    else
+        is_empty_value "$ETCD_ROOT_PASSWORD" && print_validation_error "The ETCD_ROOT_PASSWORD environment variable is empty or not set. Set the environment variable ALLOW_NONE_AUTHENTICATION=yes to allow a blank password. This is only recommended for development environments."
+    fi
+    if is_boolean_yes "$ETCD_START_FROM_SNAPSHOT" && [[ ! -f "${ETCD_INIT_SNAPSHOTS_DIR}/${ETCD_INIT_SNAPSHOT_FILENAME}" ]]; then
+        print_validation_error "You are trying to initialize etcd from a snapshot, but no snapshot was found. Set the environment variable ETCD_INIT_SNAPSHOT_FILENAME with the snapshot filename and mount it at '${ETCD_INIT_SNAPSHOTS_DIR}' directory."
+    fi
+
+    [[ "$error_code" -eq 0 ]] || return "$error_code"
+}
+
+########################
+# Check if etcd is running
+# Arguments:
+#   None
+# Returns:
+#   Boolean
+#########################
+is_etcd_running() {
+    local pid
+    pid="$(pgrep -f "^etcd" || true)"
+
+    # etcd does not create any PID file
+    # We regenerate the PID file for each time we query it to avoid getting outdated
+    if [[ -n "${ETCD_PID_FILE:-}" ]]; then
+        echo "$pid" >"$ETCD_PID_FILE"
+    fi
+
+    if [[ -n "$pid" ]]; then
+        is_service_running "$pid"
+    else
+        false
+    fi
+}
+
+########################
+# Check if etcd is running
+# Globals:
+#   ETCD_PID_FILE
+# Arguments:
+#   None
+# Returns:
+#   Whether etcd is not running
+########################
+is_etcd_not_running() {
+    ! is_etcd_running
+}
+
+########################
+# Stop etcd
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+etcd_stop() {
+    local pid
+    ! is_etcd_running && return
+
+    info "Stopping etcd"
+    # Ensure process matches etcd binary with or without options
+    pid="$(pgrep -f "^etcd")"
+    local counter=10
+    kill "$pid"
+    while [[ "$counter" -ne 0 ]] && is_service_running "$pid"; do
+        sleep 1
+        counter=$((counter - 1))
+    done
+}
+
+########################
+# Start etcd in background
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+etcd_start_bg() {
+    is_etcd_running && return
+
+    info "Starting etcd in background"
+    local start_command=("etcd")
+    am_i_root && start_command=("gosu" "$ETCD_DAEMON_USER" "${start_command[@]}")
+    [[ -f "$ETCD_CONF_FILE" ]] && start_command+=("--config-file" "$ETCD_CONF_FILE")
+    debug_execute "${start_command[@]}" &
+    sleep 3
+}
+
+########################
+# Obtain endpoints to connect when running 'ectdctl'
+# Globals:
+#   ETCD_*
+# Arguments:
+#   $1 - exclude current member from the list (default: false)
+# Returns:
+#   String
+########################
+etcdctl_get_endpoints() {
+    local only_others=${1:-false}
+    local -a endpoints=()
+    local host domain port
+
+    ip_has_valid_hostname() {
+        local ip="${1:?ip is required}"
+        local parent_domain="${1:?parent_domain is required}"
+
+        # 'getent hosts $ip' can return hostnames in 2 different formats:
+        #     POD_NAME.HEADLESS_SVC_DOMAIN.NAMESPACE.svc.cluster.local (using headless service domain)
+        #     10-237-136-79.SVC_DOMAIN.NAMESPACE.svc.cluster.local (using POD's IP and service domain)
+        # We need to discad the latter to avoid issues when TLS verification is enabled.
+        [[ "$(getent hosts "$ip")" = *"$parent_domain"* ]] && return 0
+        return 1
+    }
+
+    hostname_has_ips() {
+        local hostname="${1:?hostname is required}"
+        [[ "$(getent ahosts "$hostname")" != "" ]] && return 0
+        return 1
+    }
+
+    # This piece of code assumes this code is executed on a K8s environment
+    # where etcd members are part of a statefulset that uses a headless service
+    # to create a unique FQDN per member. Under these circumstances, the
+    # ETCD_ADVERTISE_CLIENT_URLS env. variable is created as follows:
+    #   SCHEME://POD_NAME.HEADLESS_SVC_DOMAIN:CLIENT_PORT,SCHEME://SVC_DOMAIN:SVC_CLIENT_PORT
+    #
+    # Assuming this, we can extract the HEADLESS_SVC_DOMAIN and obtain
+    # every available endpoint
+    read -r -a advertised_array <<<"$(tr ',;' ' ' <<<"$ETCD_ADVERTISE_CLIENT_URLS")"
+    host="$(parse_uri "${advertised_array[0]}" "host")"
+    port="$(parse_uri "${advertised_array[0]}" "port")"
+    domain="${host#"${ETCD_NAME}."}"
+    # When ETCD_CLUSTER_DOMAIN is set, we use that value instead of extracting
+    # it from ETCD_ADVERTISE_CLIENT_URLS
+    ! is_empty_value "$ETCD_CLUSTER_DOMAIN" && domain="$ETCD_CLUSTER_DOMAIN"
+    # Depending on the K8s distro & the DNS plugin, it might need
+    # a few seconds to associate the POD(s) IP(s) to the headless svc domain
+    if retry_while "hostname_has_ips $domain"; then
+        local -r ahosts="$(getent ahosts "$domain" | awk '{print $1}' | uniq | wc -l)"
+        for i in $(seq 0 $((ahosts - 1))); do
+            # We use the StatefulSet name stored in MY_STS_NAME to get the peer names based on the number of IPs registered in the headless service
+            pod_name="${MY_STS_NAME}-${i}"
+            if ! { [[ $only_others = true ]] && [[ "$pod_name" = "$MY_POD_NAME" ]]; }; then
+                endpoints+=("${pod_name}.${ETCD_CLUSTER_DOMAIN}:${port:-2380}")
+            fi
+        done
+    fi
+    echo "${endpoints[*]}" | tr ' ' ','
+}
+
+########################
+# Obtain etcdctl authentication flags to use
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   Array with extra flags to use for authentication
+#########################
+etcdctl_auth_flags() {
+    local -a authFlags=()
+
+    ! is_empty_value "$ETCD_ROOT_PASSWORD" && authFlags+=("--user" "root:$ETCD_ROOT_PASSWORD")
+    if [[ $ETCD_AUTO_TLS = true ]]; then
+        authFlags+=("--cert" "${ETCD_DATA_DIR}/fixtures/client/cert.pem" "--key" "${ETCD_DATA_DIR}/fixtures/client/key.pem")
+    else
+        [[ -f "$ETCD_CERT_FILE" ]] && [[ -f "$ETCD_KEY_FILE" ]] && authFlags+=("--cert" "$ETCD_CERT_FILE" "--key" "$ETCD_KEY_FILE")
+        [[ -f "$ETCD_TRUSTED_CA_FILE" ]] && authFlags+=("--cacert" "$ETCD_TRUSTED_CA_FILE")
+    fi
+    echo "${authFlags[@]}"
+}
+
+########################
+# Stores etcd member ID in the data directory
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   None
+########################
+etcd_store_member_id() {
+    local -a extra_flags
+    local member_id=""
+    info "Obtaining cluster member ID"
+    etcd_start_bg
+    read -r -a extra_flags <<<"$(etcdctl_auth_flags)"
+    is_boolean_yes "$ETCD_ON_K8S" && extra_flags+=("--endpoints=$(etcdctl_get_endpoints)")
+    if retry_while "etcdctl ${extra_flags[*]} member list" >/dev/null 2>&1; then
+        while is_empty_value "$member_id"; do
+            read -r -a advertised_array <<<"$(tr ',;' ' ' <<<"$ETCD_ADVERTISE_CLIENT_URLS")"
+            member_id="$(etcdctl "${extra_flags[@]}" member list | grep -w "${advertised_array[0]}" | awk -F "," '{ print $1}' || true)"
+        done
+        # We use 'sync' to ensure memory buffers are flushed to disk
+        # so we reduce the chances that the "member_id" file is empty.
+        # ref: https://man7.org/linux/man-pages/man1/sync.1.html
+        echo "$member_id" > "${ETCD_DATA_DIR}/member_id"
+        sync -d "${ETCD_DATA_DIR}/member_id"
+        info "Stored member ID: $(cat "${ETCD_DATA_DIR}/member_id")"
+    fi
+    etcd_stop
+}
+
+########################
+# Configure etcd RBAC (do not confuse with K8s RBAC)
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   None
+########################
+etcd_configure_rbac() {
+    info "Enabling etcd authentication"
+
+    ! is_etcd_running && etcd_start_bg
+    read -r -a extra_flags <<<"$(etcdctl_auth_flags)"
+
+    is_boolean_yes "$ETCD_ON_K8S" && extra_flags+=("--endpoints=$(etcdctl_get_endpoints)")
+    if retry_while "etcdctl ${extra_flags[*]} member list" >/dev/null 2>&1; then
+        debug_execute etcdctl "${extra_flags[@]}" user add root --interactive=false <<<"$ETCD_ROOT_PASSWORD"
+        debug_execute etcdctl "${extra_flags[@]}" user grant-role root root
+        debug_execute etcdctl "${extra_flags[@]}" auth enable
+    fi
+    etcd_stop
+}
+
+########################
+# Checks if the member was successfully removed from the cluster
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   None
+########################
+was_etcd_member_removed() {
+    local return_value=0
+
+    if grep -sqE "^Member[[:space:]]+[a-z0-9]+\s+removed\s+from\s+cluster\s+[a-z0-9]+$" "${ETCD_VOLUME_DIR}/member_removal.log"; then
+        debug "Removal was properly recorded in member_removal.log"
+        rm -rf "${ETCD_DATA_DIR:?}/"*
+    elif [[ ! -d "${ETCD_DATA_DIR}/member/snap" ]] && [[ ! -f "$ETCD_DATA_DIR/member_id" ]]; then
+        debug "Missing member data"
+        rm -rf "${ETCD_DATA_DIR:?}/"*
+    else
+        return_value=1
+    fi
+    rm -f "${ETCD_VOLUME_DIR}/member_removal.log"
+    return $return_value
+}
+
+########################
+# Checks if etcd needs to bootstrap a new cluster
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   Boolean
+########################
+is_new_etcd_cluster() {
+    [[ "$ETCD_INITIAL_CLUSTER_STATE" = "new" ]] && [[ "$ETCD_INITIAL_CLUSTER" = *"$ETCD_INITIAL_ADVERTISE_PEER_URLS"* ]]
+}
+
+########################
+# Checks if there are enough active members
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   Boolean
+########################
+is_healthy_etcd_cluster() {
+    local return_value=0
+    local active_endpoints=0
+    local -a extra_flags
+    local -a endpoints_array=()
+    local host port
+
+    is_boolean_yes "$ETCD_ON_K8S" && read -r -a endpoints_array <<<"$(tr ',;' ' ' <<<"$(etcdctl_get_endpoints)")"
+    local -r cluster_size=${#endpoints_array[@]}
+    read -r -a advertised_array <<<"$(tr ',;' ' ' <<<"$ETCD_ADVERTISE_CLIENT_URLS")"
+    host="$(parse_uri "${advertised_array[0]}" "host")"
+    port="$(parse_uri "${advertised_array[0]}" "port")"
+    if [[ $cluster_size -gt 0 ]]; then
+        for e in "${endpoints_array[@]}"; do
+            read -r -a extra_flags <<<"$(etcdctl_auth_flags)"
+            extra_flags+=("--endpoints=$e")
+            if [[ "$e" != "$host:$port" ]] && etcdctl endpoint health "${extra_flags[@]}" >/dev/null 2>&1; then
+                debug "$e endpoint is active"
+                ((active_endpoints++))
+            fi
+        done
+    fi
+
+    if is_boolean_yes "$ETCD_DISASTER_RECOVERY"; then
+        if [[ -f "/snapshots/.disaster_recovery" ]]; then
+            # Remove current node from the ones that need to recover
+            remove_in_file "/snapshots/.disaster_recovery" "$host:$port"
+            # Remove nodes that do not exist anymore from the ones that need to recover
+            read -r -a recovery_array <<<"$(tr '\n' ' ' <"/snapshots/.disaster_recovery")"
+            for r in "${recovery_array[@]}"; do
+                if [[ ! "${endpoints_array[*]}" =~ $r ]]; then
+                    remove_in_file "/snapshots/.disaster_recovery" "$r"
+                fi
+            done
+            if [[ $(wc -w <"/snapshots/.disaster_recovery") -eq 0 ]]; then
+                debug "Last member to recover from the disaster!"
+                rm "/snapshots/.disaster_recovery"
+            fi
+            return_value=1
+        else
+            if [[ $active_endpoints -lt $(((cluster_size + 1) / 2)) ]]; then
+                debug "There are no enough active endpoints!"
+                for e in "${endpoints_array[@]}"; do
+                    [[ "$e" != "$host:$port" ]] && [[ "$e" != ":$port" ]] && echo "$e" >>"/snapshots/.disaster_recovery"
+                done
+                return_value=1
+            fi
+        fi
+    else
+        if [[ $active_endpoints -lt $(((cluster_size + 1) / 2)) ]]; then
+            debug "There are no enough active endpoints!"
+            return_value=1
+        fi
+    fi
+
+    return $return_value
+}
+
+########################
+# Prints initial cluster nodes
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   String
+########################
+get_initial_cluster() {
+    local -a endpoints_array=()
+    local scheme port initial_members
+    read -r -a endpoints_array <<<"$(tr ',;' ' ' <<<"$ETCD_INITIAL_CLUSTER")"
+    if [[ ${#endpoints_array[@]} -gt 0 ]] && ! grep -sqE "://" <<<"$ETCD_INITIAL_CLUSTER"; then
+        # This piece of code assumes this container is used on a VM environment
+        # where ETCD_INITIAL_CLUSTER contains a comma-separated list of hostnames,
+        # and recreates it as follows:
+        #   SCHEME://NOTE_NAME:PEER_PORT
+        scheme="$(parse_uri "$ETCD_INITIAL_ADVERTISE_PEER_URLS" "scheme")"
+        port="$(parse_uri "$ETCD_INITIAL_ADVERTISE_PEER_URLS" "port")"
+        for nodePeer in "${endpoints_array[@]}"; do
+            initial_members+=("${nodePeer}=${scheme}://${nodePeer}:$port")
+        done
+        echo "${initial_members[*]}" | tr ' ' ','
+    else
+        # Nothing to do
+        echo "$ETCD_INITIAL_CLUSTER"
+    fi
+}
+
+########################
+# Recalculate initial cluster
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   String
+########################
+recalculate_initial_cluster() {
+    local -a endpoints_array initial_members
+    local domain host member_host member_port member_id port scheme
+
+    if is_boolean_yes "$ETCD_ON_K8S"; then
+        read -r -a endpoints_array <<<"$(tr ',;' ' ' <<<"$(etcdctl_get_endpoints)")"
+        # This piece of code assumes this container is used on a K8s environment
+        # where etcd members are part of a statefulset that uses a headless service
+        # to create a unique FQDN per member. Under these circumstances, the
+        # ETCD_INITIAL_ADVERTISE_PEER_URLS are created as follows:
+        #   SCHEME://POD_NAME.HEADLESS_SVC_DOMAIN:PEER_PORT
+        #
+        # Assuming this, we can extract the HEADLESS_SVC_DOMAIN
+        host="$(parse_uri "$ETCD_INITIAL_ADVERTISE_PEER_URLS" "host")"
+        scheme="$(parse_uri "$ETCD_INITIAL_ADVERTISE_PEER_URLS" "scheme")"
+        port="$(parse_uri "$ETCD_INITIAL_ADVERTISE_PEER_URLS" "port")"
+        domain="${host#"${ETCD_NAME}."}"
+        # When ETCD_CLUSTER_DOMAIN is set, we use that value instead of extracting
+        # it from ETCD_INITIAL_ADVERTISE_PEER_URLS
+        ! is_empty_value "$ETCD_CLUSTER_DOMAIN" && domain="$ETCD_CLUSTER_DOMAIN"
+        for e in "${endpoints_array[@]}"; do
+            member_host="$(parse_uri "$scheme://$e" "host")"
+            member_port="$(parse_uri "$scheme://$e" "port")"
+            member_id=${e%".$domain:$member_port"}
+            initial_members+=("${member_id}=${scheme}://${member_host}:$port")
+        done
+        echo "${initial_members[*]}" | tr ' ' ','
+    else
+        # Nothing to do
+        echo "$ETCD_INITIAL_CLUSTER"
+    fi
+}
+
+########################
+# Ensure etcd is initialized
+# Globals:
+#   ETCD_*
+# Arguments:
+#   None
+# Returns:
+#   None
+#########################
+etcd_initialize() {
+    local -a extra_flags initial_members
+    local domain
+
+    info "Initializing etcd"
+
+    # Generate user configuration if ETCD_CFG_* variables are provided
+    etcd_setup_from_environment_variables
+
+    ETCD_INITIAL_CLUSTER="$(get_initial_cluster)"
+    export ETCD_INITIAL_CLUSTER
+    [[ -f "$ETCD_CONF_FILE" ]] && etcd_conf_write "initial-cluster" "$ETCD_INITIAL_CLUSTER"
+
+    read -r -a initial_members <<<"$(tr ',;' ' ' <<<"$ETCD_INITIAL_CLUSTER")"
+    if is_mounted_dir_empty "$ETCD_DATA_DIR"; then
+        info "There is no data from previous deployments"
+        if [[ ${#initial_members[@]} -gt 1 ]]; then
+            if is_new_etcd_cluster; then
+                info "Bootstrapping a new cluster"
+                if is_boolean_yes "$ETCD_ON_K8S"; then
+                    debug "Waiting for the headless svc domain to have an IP per initial member in the cluster"
+                    if is_empty_value "$ETCD_CLUSTER_DOMAIN"; then
+                        # This piece of code assumes this container is used on a K8s environment
+                        # where etcd members are part of a statefulset that uses a headless service
+                        # to create a unique FQDN per member. Under these circumstances, the
+                        # ETCD_INITIAL_ADVERTISE_PEER_URLS are created as follows:
+                        #   SCHEME://POD_NAME.HEADLESS_SVC_DOMAIN:PEER_PORT
+                        #
+                        # Assuming this, we can extract the HEADLESS_SVC_DOMAIN
+                        host="$(parse_uri "$ETCD_INITIAL_ADVERTISE_PEER_URLS" "host")"
+                        domain="${host#"${ETCD_NAME}."}"
+                    else
+                        # When ETCD_CLUSTER_DOMAIN is set, we use that value instead of extracting
+                        # it from ETCD_INITIAL_ADVERTISE_PEER_URLS
+                        domain="$ETCD_CLUSTER_DOMAIN"
+                    fi
+                    hostname_has_N_ips() {
+                        local -r hostname="${1:?hostname is required}"
+                        local -r n=${2:?number of ips is required}
+                        [[ $(getent ahosts "$hostname" | awk '{print $1}' | uniq | wc -l) -eq $n ]] && return 0
+                        return 1
+                    }
+                    if ! retry_while "hostname_has_N_ips $domain ${#initial_members[@]}"; then
+                        error "Headless service domain does not have an IP per initial member in the cluster"
+                        exit 1
+                    fi
+                fi
+            else
+                info "Adding new member to existing cluster"
+                ensure_dir_exists "$ETCD_DATA_DIR"
+                read -r -a extra_flags <<<"$(etcdctl_auth_flags)"
+                is_boolean_yes "$ETCD_ON_K8S" && extra_flags+=("--endpoints=$(etcdctl_get_endpoints)")
+                extra_flags+=("--peer-urls=$ETCD_INITIAL_ADVERTISE_PEER_URLS")
+                etcdctl member add "$ETCD_NAME" "${extra_flags[@]}" | grep "^ETCD_" >"$ETCD_NEW_MEMBERS_ENV_FILE"
+                replace_in_file "$ETCD_NEW_MEMBERS_ENV_FILE" "^" "export "
+            fi
+        fi
+        if is_boolean_yes "$ETCD_START_FROM_SNAPSHOT"; then
+            if [[ -f "${ETCD_INIT_SNAPSHOTS_DIR}/${ETCD_INIT_SNAPSHOT_FILENAME}" ]]; then
+                info "Restoring snapshot before initializing etcd cluster"
+                local -a restore_args=("--data-dir" "$ETCD_DATA_DIR")
+                if [[ ${#initial_members[@]} -gt 1 ]]; then
+                    ETCD_INITIAL_CLUSTER="$(recalculate_initial_cluster)"
+                    export ETCD_INITIAL_CLUSTER
+                    [[ -f "$ETCD_CONF_FILE" ]] && etcd_conf_write "initial-cluster" "$ETCD_INITIAL_CLUSTER"
+                    restore_args+=(
+                        "--name" "$ETCD_NAME"
+                        "--initial-cluster" "$ETCD_INITIAL_CLUSTER"
+                        "--initial-cluster-token" "$ETCD_INITIAL_CLUSTER_TOKEN"
+                        "--initial-advertise-peer-urls" "$ETCD_INITIAL_ADVERTISE_PEER_URLS"
+                    )
+                fi
+                debug_execute etcdctl snapshot restore "${ETCD_INIT_SNAPSHOTS_DIR}/${ETCD_INIT_SNAPSHOT_FILENAME}" "${restore_args[@]}"
+                etcd_store_member_id
+            else
+                error "There was no snapshot to restore!"
+                exit 1
+            fi
+        else
+            if [[ ${#initial_members[@]} -gt 1 ]]; then
+                # When there's more than one etcd replica, RBAC should be only enabled in one member
+                if ! is_empty_value "$ETCD_ROOT_PASSWORD" && [[ "$ETCD_INITIAL_CLUSTER_STATE" = "new" ]] && [[ "${initial_members[0]}" = *"$ETCD_INITIAL_ADVERTISE_PEER_URLS"* ]]; then
+                    etcd_configure_rbac
+                else
+                    debug "Skipping RBAC configuration in member $ETCD_NAME"
+                fi
+            else
+                ! is_empty_value "$ETCD_ROOT_PASSWORD" && etcd_configure_rbac
+            fi
+            etcd_store_member_id
+        fi
+    else
+        info "Detected data from previous deployments"
+        if [[ $(stat -c "%a" "$ETCD_DATA_DIR") != *700 ]]; then
+            debug "Setting data directory permissions to 700 in a recursive way (required in etcd >=3.4.10)"
+            debug_execute chmod -R 700 "$ETCD_DATA_DIR" || true
+        fi
+        if [[ ${#initial_members[@]} -gt 1 ]]; then
+            if ! is_healthy_etcd_cluster; then
+                warn "Cluster not responding!"
+                if is_boolean_yes "$ETCD_DISASTER_RECOVERY"; then
+                    latest_snapshot_file="$(find /snapshots/ -maxdepth 1 -type f -name 'db-*' | sort | tail -n 1)"
+                    if [[ "${latest_snapshot_file}" != "" ]]; then
+                        info "Restoring etcd cluster from snapshot"
+                        rm -rf "$ETCD_DATA_DIR"
+                        ETCD_INITIAL_CLUSTER="$(recalculate_initial_cluster)"
+                        export ETCD_INITIAL_CLUSTER
+                        [[ -f "$ETCD_CONF_FILE" ]] && etcd_conf_write "initial-cluster" "$ETCD_INITIAL_CLUSTER"
+                        debug_execute etcdctl snapshot restore "${latest_snapshot_file}" \
+                            --name "$ETCD_NAME" \
+                            --data-dir "$ETCD_DATA_DIR" \
+                            --initial-cluster "$ETCD_INITIAL_CLUSTER" \
+                            --initial-cluster-token "$ETCD_INITIAL_CLUSTER_TOKEN" \
+                            --initial-advertise-peer-urls "$ETCD_INITIAL_ADVERTISE_PEER_URLS"
+                        etcd_store_member_id
+                    else
+                        error "There was no snapshot to restore!"
+                        exit 1
+                    fi
+                else
+                    warn "Disaster recovery is disabled, the cluster will try to recover on it's own"
+                fi
+            elif was_etcd_member_removed; then
+                info "Adding new member to existing cluster"
+                read -r -a extra_flags <<<"$(etcdctl_auth_flags)"
+                is_boolean_yes "$ETCD_ON_K8S" && extra_flags+=("--endpoints=$(etcdctl_get_endpoints)")
+                extra_flags+=("--peer-urls=$ETCD_INITIAL_ADVERTISE_PEER_URLS")
+                etcdctl member add "$ETCD_NAME" "${extra_flags[@]}" | grep "^ETCD_" >"$ETCD_NEW_MEMBERS_ENV_FILE"
+                replace_in_file "$ETCD_NEW_MEMBERS_ENV_FILE" "^" "export "
+                etcd_store_member_id
+            elif [[ -f "${ETCD_DATA_DIR}/member_id" ]]; then
+                info "Updating member in existing cluster"
+                export ETCD_INITIAL_CLUSTER_STATE=existing
+                [[ -f "$ETCD_CONF_FILE" ]] && etcd_conf_write "initial-cluster-state" "$ETCD_INITIAL_CLUSTER_STATE"
+                read -r -a extra_flags <<<"$(etcdctl_auth_flags)"
+                is_boolean_yes "$ETCD_ON_K8S" && extra_flags+=("--endpoints=$(etcdctl_get_endpoints)")
+                extra_flags+=("--peer-urls=$ETCD_INITIAL_ADVERTISE_PEER_URLS")
+                etcdctl member update "$(cat "${ETCD_DATA_DIR}/member_id")" "${extra_flags[@]}"
+            else
+                info "Member ID wasn't properly stored, the member will try to join the cluster by it's own"
+                export ETCD_INITIAL_CLUSTER_STATE=existing
+                [[ -f "$ETCD_CONF_FILE" ]] && etcd_conf_write "initial-cluster-state" "$ETCD_INITIAL_CLUSTER_STATE"
+            fi
+        fi
+    fi
+
+    # Avoid exit code of previous commands to affect the result of this function
+    true
+}

bitnami/etcd/README.md

@@ -47,7 +47,7 @@ Learn more about the Bitnami tagging policy and the difference between rolling t
 
 * [`3.5`, `3.5-debian-11`, `3.5.4`, `3.5.4-debian-11-r-1`, `latest` (3.5/debian-11/Dockerfile)](https://github.com/bitnami/bitnami-docker-etcd/blob/3.5.4-debian-11-r-1/3.5/debian-11/Dockerfile)
 * [`3.4`, `3.4-debian-11`, `3.4.18`, `3.4.18-debian-11-r0` (3.4/debian-11/Dockerfile)](https://github.com/bitnami/bitnami-docker-etcd/blob/3.4.18-debian-11-r0/3.4/debian-11/Dockerfile)
-* [`3.3`, `3.3-debian-11`, `3.3.27`, `3.3.27-debian-11-r-1` (3.3/debian-11/Dockerfile)](https://github.com/bitnami/bitnami-docker-etcd/blob/3.3.27-debian-11-r-1/3.3/debian-11/Dockerfile)
+* [`3.3`, `3.3-debian-11`, `3.3.27`, `3.3.27-debian-11-r0` (3.3/debian-11/Dockerfile)](https://github.com/bitnami/bitnami-docker-etcd/blob/3.3.27-debian-11-r0/3.3/debian-11/Dockerfile)
 
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