feat: multiple database and user in postgres

postgres/Dockerfile

@@ -0,0 +1,5 @@
+FROM postgres:latest
+
+# Custom initialization scripts
+COPY ./create_user.sh   /docker-entrypoint-initdb.d/10-create_user.sh
+COPY ./create_db.sh     /docker-entrypoint-initdb.d/20-create_db.sh

postgres/create_db.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -e
+
+POSTGRES="psql --username ${POSTGRES_USER}"
+
+echo "Creating database: ${DB_NAME}"
+
+$POSTGRES <<EOSQL
+CREATE DATABASE ${BACKEND_DB} OWNER ${BACKEND_USER};
+EOSQL
+
+
+echo "Creating database: ${DB_NAME}"
+
+$POSTGRES <<EOSQL
+CREATE DATABASE ${KEYCLOAK_DB} OWNER ${KEYCLOAK_USER};
+EOSQL

postgres/create_user.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -e
+
+POSTGRES="psql --username ${POSTGRES_USER}"
+
+echo "Creating database role: [${BACKEND_USER}]"
+
+$POSTGRES <<-EOSQL
+CREATE USER ${BACKEND_USER} WITH CREATEDB PASSWORD '${BACKEND_PASSWORD}';
+EOSQL
+
+
+echo "Creating database role: ${KEYCLOAK_USER}"
+$POSTGRES <<-EOSQL
+CREATE USER ${KEYCLOAK_USER} WITH CREATEDB PASSWORD '${KEYCLOAK_PASSWORD}';
+EOSQL