docker-compose.varnish.yaml

#ddev-generated
services:
  varnish:
    container_name: ddev-${DDEV_SITENAME}-varnish
    image: varnish:6.0
    # These labels ensure this service is discoverable by ddev.
    labels:
      com.ddev.site-name: ${DDEV_SITENAME}
      com.ddev.approot: $DDEV_APPROOT
    environment:
      # This defines the host name the service should be accessible from. This
      # will be sitename.ddev.site.
      # This is the first half of the trick that puts varnish "in front of" the
      # web container, just by switching the names.
      - VIRTUAL_HOST=$DDEV_HOSTNAME
      # This defines the ports the service should be accessible from at
      # sitename.ddev.site.
      - HTTPS_EXPOSE=443:80,8026:8025
      - HTTP_EXPOSE=80:80,8025:8025
    volumes:
      # This exposes a mount to the host system `.ddev/varnish` directory where
      # your default.vcl should be.
      - "./varnish:/etc/varnish"
      - ".:/mnt/ddev_config"
    depends_on:
      - web
    # Add mailhog support
    expose:
      - "8025"
    entrypoint:
      /usr/local/bin/docker-varnish-entrypoint -a 0.0.0.0:8025