feat: multiple database and user in postgres

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