aptly/server/mirror/ubuntu/trusty/haproxy.yml

parameters:
  aptly:
    server:
      mirror:
        haproxy-trusty:
          source: http://ppa.launchpad.net/vbernat/haproxy-1.5/ubuntu
          distribution: trusty
          components: main
          architectures: amd64
          gpgkeys:
            - 1C61B9CD
          publisher:
            component: extra
            distributions:
              - nightly/trusty