series: xenial
applications:
  ghost:
    charm: "ghost"
    num_units: 1
  mysql:
    charm: "mysql"
    channel: "candidate"
    series: "trusty"
    num_units: 1
    options:
      max-connections: 2
      tuning-level: include-base64://config-base64.yaml
  test:
    charm: "../charm"
relations:
  - ["ghost", "mysql"]

series: xenial
applications:
  ghost:
    charm: "ghost"
    num_units: 1
  mysql:
    charm: "mysql"
    channel: candidate
    num_units: 1
    options:
      max-connections: 2
      tuning-level: include-base64://config-base64.yaml
  test:
    charm: "../charm"
relations:
  - ["ghost", "mysql"]

Update the base64 test bundle to use charmhub
Update the base64 test bundle to use charmhub
