install.yaml

name: varnish

# list of files and directories listed that are copied into project .ddev directory
project_files:
- docker-compose.varnish.yaml
- varnish
- commands/varnish

ddev_version_constraint: '>= v1.24.0'

pre_install_actions:
  - |
    #ddev-nodisplay
    #ddev-description:Removing old docker-compose.varnish-extras.yaml
    if [ -f ${DDEV_APPROOT}/.ddev/docker-compose.varnish-extras.yaml ]; then
      if grep -q '#ddev-generated' ${DDEV_APPROOT}/.ddev/docker-compose.varnish-extras.yaml; then
        rm -f ${DDEV_APPROOT}/.ddev/docker-compose.varnish-extras.yaml
      else
        echo "${DDEV_APPROOT}/.ddev/docker-compose.varnish-extras.yaml needs to be removed but has been modified by the user. Please check it and remove it"
        exit 2
      fi
    fi

post_install_actions:
  - |
    #ddev-nodisplay
    #ddev-description:Checking docker-compose.varnish_extras.yaml for changes
    if [ -f docker-compose.varnish_extras.yaml ] && ! grep -q '#ddev-generated' docker-compose.varnish_extras.yaml; then
      echo "Existing docker-compose.varnish_extras.yaml does not have #ddev-generated, so can't be updated"
      exit 2
    fi
  - |
    #ddev-nodisplay
    #ddev-description:Replacing all hostnames in the web container by adding "novarnish" subdomain prefix
    cat <<-END >docker-compose.varnish_extras.yaml
    #ddev-generated
    # This is the second half of the trick that puts varnish "in front of" the web
    # container, by switching all hostnames with "novarnish" subdomain prefix.
    services:
      web:
        environment:
        {{- $novarnish_hostnames := splitList "," (env "DDEV_HOSTNAME") }}
        - VIRTUAL_HOST={{ range $i, $n := $novarnish_hostnames }}novarnish.{{ replace (env "DDEV_TLD") "\\${DDEV_TLD}" (replace (env "DDEV_PROJECT") "\\${DDEV_PROJECT}" $n) }}{{ if lt (add1 $i) (len $novarnish_hostnames) }},{{ end }}{{ end }}
    END

removal_actions:
  - |
    #ddev-nodisplay
    #ddev-description:Remove docker-compose.varnish_extras.yaml file
    if [ -f docker-compose.varnish_extras.yaml ]; then
      if grep -q '#ddev-generated' docker-compose.varnish_extras.yaml; then
        rm -f docker-compose.varnish_extras.yaml
      else
        echo "Unwilling to remove '$DDEV_APPROOT/.ddev/docker-compose.varnish_extras.yaml' because it does not have #ddev-generated in it; you can manually delete it if it is safe to delete."
      fi
    fi