#!/bin/bash # Set a default value for POSTGRES_PORT if [ -z "$POSTGRES_PORT" ]; then POSTGRES_PORT=5432 fi # POSTGRES_HOST must be set in the containers env vars and POSTGRES_PORT has a default above # shellcheck disable=SC2153 nc -z "$POSTGRES_HOST" "$POSTGRES_PORT" || exit 0 if ! nc -z 127.0.0.1 9000; then exit 1 fi