Add google cloud proxy to Docker compose

Easy way to use google database cloud on your docker compose dev enviroment

To make google cloud database work with docker compose here is the easiest way for me.

  google_cloud_database:
    image: gcr.io/cloudsql-docker/gce-proxy:1.37.0
    command: /cloud_sql_proxy -instances=gcpproject-123:europe-west4:database_name=tcp:0.0.0.0:3306, -dir=/cloudsql -credential_file=/cloudsqlproxy.json
    volumes:
      - ./auth/cloudsqlproxy.json:/cloudsqlproxy.json
    restart: always