entrypoint: remove references to entrypoint.sh from base image

bitnami/postgresql/Dockerfile

@@ -3,15 +3,13 @@ MAINTAINER Bitnami <containers@bitnami.com>
 
 ENV BITNAMI_IMAGE_VERSION=9.6.2-r0 \
     BITNAMI_APP_NAME=postgresql \
-    BITNAMI_APP_USER=postgres
-
+    PATH=/opt/bitnami/postgresql/bin:$PATH
 
 # System packages required
 RUN install_packages libc6 libssl1.0.0 zlib1g libxml2 liblzma5 libedit2 libbsd0 libtinfo5 libxslt1.1
 
 # Install postgresql
 RUN bitnami-pkg unpack postgresql-9.6.2-0 --checksum b706396cc1a435741e4db319f8028d716047cc4d40e6b3418c16944f6661f90f
-ENV PATH=/opt/bitnami/postgresql/sbin:/opt/bitnami/postgresql/bin:$PATH
 
 COPY rootfs /
 

bitnami/postgresql/rootfs/app-entrypoint.sh

@@ -1,21 +1,13 @@
 #!/bin/bash -e
+. /opt/bitnami/base/functions
+. /opt/bitnami/base/helpers
 
-function initialize {
-    # Package can be "installed" or "unpacked"
-    status=`nami inspect $1`
-    if [[ "$status" == *'"lifecycle": "unpacked"'* ]]; then
-        # Clean up inputs
-        inputs=""
-        if [[ -f /$1-inputs.json ]]; then
-            inputs=--inputs-file=/$1-inputs.json
-        fi
-        nami initialize $1 $inputs
-    fi
-}
+print_welcome_page
+check_for_updates &
 
-if [[ "$1" == "nami" && "$2" == "start" ]] ||  [[ "$1" == "/init.sh" ]]; then
-    initialize postgresql
-    echo "Starting application ..."
+if [[ "$1" == "nami" && "$2" == "start" ]] || [[ "$1" == "/init.sh" ]]; then
+  nami_initialize postgresql
+  info "Starting postgresql..."
 fi
 
-exec /entrypoint.sh "$@"
+exec tini -- "$@"