aptly/server/mirror/ubuntu/xenial/docker.yml

parameters:
  _param:
    apt_mk_version: stable
  aptly:
    server:
      mirror:
        docker-xenial:
          source: https://apt.dockerproject.org/repo
          distribution: ubuntu-xenial
          components: main
          architectures: amd64
          gpgkeys:
            - 58118E89F3A912897C070ADBF76221572C52609D
          publisher:
            component: docker
            distributions:
              - ubuntu-xenial/${_param:apt_mk_version}