Marathon

by dellintosh

The example Yaml configurations in this file are using the legacy 0.8 syntax. If you are using Drone 1.0 or Drone Cloud please ensure you use the appropriate 1.0 syntax. Learn more here.

This plugin can be used to deploy applications to a Marathon server. The below pipeline configuration demonstrates simple usage:

pipeline:
  marathon:
    image: e20co/drone-marathon
    server: http://marathon.mesos:8080

Marathon Configuration File

Example configuration with custom Marathon configuration file (default: marathon.json):

pipeline:
  marathon_dev:
    image: e20co/drone-marathon
    server: http://marathon.mesos:8080
+   marathonfile: develop/marathon-dev.json
  marathon_prod:
    image: e20co/drone-marathon
    server: http://marathon.mesos:8080
+   marathonfile: prod/marathon-prod.json

The trigger_restart will force Marathon to restart the application after install. This might be necessary if Marathon doesn’t detect a change in the application but you want to force a restart.

pipeline:
  marathon:
    image: e20co/drone-marathon
    server: http://marathon.mesos:8080
+   trigger_restart: true

Example configuration with values substitution:

pipeline:
  marathon:
    image: e20co/drone-marathon
    server: http://marathon.mesos:8080
+   values: [drone_branch]

In the marathon.json file (please note the << and >> around the DRONE_BRANCH key):

{
  "id": "/my-application/branch-<<DRONE_BRANCH>>",
  ...
}

Will result in:

{
  "id": "/my-application/branch-mybranch",
  ...
}

Example configuration using values from secrets:

pipeline:
  marathon:
    image: e20co/drone-marathon
    server: http://marathon.mesos:8080
+   secrets: [database_password]
+   values: [database_password, drone_branch]

The secret above can be injected into your marathon.json file using the <<DATABASE_PASSWORD>> placeholder. Any secrets can be used in this way, assuming they are available to the build process.

NOTE: Because the plugin does not have direct access to the secrets list directly, they must be specified in the values list also (see https://github.com/drone/drone/issues/2088 for details).

Secrets

This module does not have any pre-defined secrets, however, any secrets can be injected into the marathon.json file as desired. See example above.

Parameter Reference

server
The Marathon server URL. defaults to http://marathon.mesos:8080
marathonfile
The Marathon configuration file. defaults to marathon.json.
trigger_restart
Force a restart of the application. defaults to false.
values
Map of values to replace in the marathonfile, above. Optional.

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