Merge pull request #25 from eggshell/master

Add support for 3 new pgbouncer.ini config options

bitnami/pgbouncer/1/debian-10/rootfs/opt/bitnami/scripts/libpgbouncer.sh

@@ -226,6 +226,7 @@ pgbouncer_initialize() {
             "pidfile:${PGBOUNCER_PID_FILE}"
             "logfile:${PGBOUNCER_LOG_FILE}"
             "admin_users:${POSTGRESQL_USERNAME}"
+            "stats_users:${PGBOUNCER_STATS_USERS}"
             "client_tls_sslmode:${PGBOUNCER_CLIENT_TLS_SSLMODE}"
             "server_tls_sslmode:${PGBOUNCER_SERVER_TLS_SSLMODE}"
             "query_wait_timeout:${PGBOUNCER_QUERY_WAIT_TIMEOUT}"
@@ -233,6 +234,8 @@ pgbouncer_initialize() {
             "max_client_conn:${PGBOUNCER_MAX_CLIENT_CONN}"
             "max_db_connections:${PGBOUNCER_MAX_DB_CONNECTIONS}"
             "idle_transaction_timeout:${PGBOUNCER_IDLE_TRANSACTION_TIMEOUT}"
+            "server_idle_timeout:${PGBOUNCER_SERVER_IDLE_TIMEOUT}"
+            "server_reset_query:${PGBOUNCER_SERVER_RESET_QUERY}"
             "default_pool_size:${PGBOUNCER_DEFAULT_POOL_SIZE}"
             "min_pool_size:${PGBOUNCER_MIN_POOL_SIZE}"
             "reserve_pool_size:${PGBOUNCER_RESERVE_POOL_SIZE}"

bitnami/pgbouncer/1/debian-10/rootfs/opt/bitnami/scripts/pgbouncer-env.sh

@@ -27,6 +27,7 @@ pgbouncer_env_vars=(
     PGBOUNCER_AUTH_USER
     PGBOUNCER_AUTH_QUERY
     PGBOUNCER_AUTH_TYPE
+    PGBOUNCER_STATS_USERS
     PGBOUNCER_POOL_MODE
     PGBOUNCER_INIT_SLEEP_TIME
     PGBOUNCER_INIT_MAX_RETRIES
@@ -34,6 +35,8 @@ pgbouncer_env_vars=(
     PGBOUNCER_MAX_CLIENT_CONN
     PGBOUNCER_MAX_DB_CONNECTIONS
     PGBOUNCER_IDLE_TRANSACTION_TIMEOUT
+    PGBOUNCER_SERVER_IDLE_TIMEOUT
+    PGBOUNCER_SERVER_RESET_QUERY
     PGBOUNCER_DEFAULT_POOL_SIZE
     PGBOUNCER_MIN_POOL_SIZE
     PGBOUNCER_RESERVE_POOL_SIZE
@@ -93,6 +96,7 @@ export PGBOUNCER_LISTEN_ADDRESS="${PGBOUNCER_LISTEN_ADDRESS:-0.0.0.0}"
 export PGBOUNCER_AUTH_USER="${PGBOUNCER_AUTH_USER:-}"
 export PGBOUNCER_AUTH_QUERY="${PGBOUNCER_AUTH_QUERY:-}"
 export PGBOUNCER_AUTH_TYPE="${PGBOUNCER_AUTH_TYPE:-md5}"
+export PGBOUNCER_STATS_USERS="${PGBOUNCER_STATS_USERS:-}"
 export PGBOUNCER_POOL_MODE="${PGBOUNCER_POOL_MODE:-}"
 export PGBOUNCER_INIT_SLEEP_TIME="${PGBOUNCER_INIT_SLEEP_TIME:-10}"
 export PGBOUNCER_INIT_MAX_RETRIES="${PGBOUNCER_INIT_MAX_RETRIES:-10}"
@@ -105,6 +109,8 @@ export PGBOUNCER_MIN_POOL_SIZE="${PGBOUNCER_MIN_POOL_SIZE:-}"
 export PGBOUNCER_RESERVE_POOL_SIZE="${PGBOUNCER_RESERVE_POOL_SIZE:-}"
 export PGBOUNCER_IGNORE_STARTUP_PARAMETERS="${PGBOUNCER_IGNORE_STARTUP_PARAMETERS:-}"
 export PGBOUNCER_EXTRA_FLAGS="${PGBOUNCER_EXTRA_FLAGS:-}"
+export PGBOUNCER_SERVER_IDLE_TIMOUT="${PGBOUNCER_SERVER_IDLE_TIMOUT:-}"
+export PGBOUNCER_SERVER_RESET_QUERY="${PGBOUNCER_SERVER_RESET_QUERY:-}"
 
 # Client TLS settings
 export PGBOUNCER_CLIENT_TLS_SSLMODE="${PGBOUNCER_CLIENT_TLS_SSLMODE:-disable}"

bitnami/pgbouncer/README.md

@@ -127,6 +127,9 @@ To expose the same database name as the backend, set `PGBOUNCER_DATABASE="$POSTG
 - `PGBOUNCER_MIN_POOL_SIZE` : PgBouncer has at least this amount of open connections. Default: **0 (disabled)**.
 - `PGBOUNCER_RESERVE_POOL_SIZE` : PgBouncer allows this amount of additional connections. Default: **0 (disabled)**.
 - `PGBOUNCER_IGNORE_STARTUP_PARAMETERS`: you can use this to set `ignore_startup_parameters` in the auto-generated `pgbouncer.ini`. This can be useful for solving certain connection issues. See https://www.pgbouncer.org/config.html for more details.
+- `PGBOUNCER_SERVER_IDLE_TIMEOUT`: PgBouncer maximum time in seconds a server connection can be idle. If 0 then the timeout is disabled. Default: **600**
+- `PGBOUNCER_SERVER_RESET_QUERY`: PgBouncer query sent to server on connection release before making it available to other clients. Default: **DISCARD ALL**
+- `PGBOUNCER_STATS_USERS`: PgBouncer comma-separated list of database users that are allowed to connect and run read-only queries. No defaults.
 
 ### Initializing a new instance