Clean up the PostgreSQL configuration files (#8762)

Author: volyrique

toolset/databases/postgres/config.sh

@@ -1 +1,5 @@
-cat /tmp/postgresql.conf >> $PGDATA/postgresql.conf
+#!/bin/bash
+
+set -e
+
+cat /tmp/postgresql.conf >> "${PGDATA}/postgresql.conf"

toolset/databases/postgres/create-postgres-database.sql

@@ -1,16 +1,14 @@
 FROM postgres:16-bookworm
 
-ENV POSTGRES_USER=benchmarkdbuser
-ENV POSTGRES_PASSWORD=benchmarkdbpass
-ENV POSTGRES_DB=hello_world
+ENV PGDATA=/ssd/postgresql \
+    POSTGRES_DB=hello_world \
+    POSTGRES_HOST_AUTH_METHOD=md5 \
+    POSTGRES_INITDB_ARGS=--auth-host=md5 \
+    POSTGRES_PASSWORD=benchmarkdbpass \
+    POSTGRES_USER=benchmarkdbuser
 
-ENV POSTGRES_HOST_AUTH_METHOD=md5
-ENV POSTGRES_INITDB_ARGS=--auth-host=md5
-ENV PGDATA=/ssd/postgresql
+COPY postgresql.conf /tmp/
 
-COPY postgresql-min.conf /tmp/postgresql.conf
-
-COPY create-postgres.sql /docker-entrypoint-initdb.d/
-COPY config.sh /docker-entrypoint-initdb.d/
+COPY config.sh create-postgres.sql /docker-entrypoint-initdb.d/
 
 COPY 60-postgresql-shm.conf /etc/sysctl.d/60-postgresql-shm.conf