gistfile1.txt

Example 2 - Specifying plugins externally

In this example, each component is simply passed the plugins that are used, and these plugins are marked as dependencies. I tried this example with swift (in swift, unlike the other plugin module, each swift service is configured as a pipeline of N-plugins)

    https://github.com/stackforge/puppet-swift/blob/master/manifests/proxy.pp#L89

    https://github.com/stackforge/puppet-swift/blob/master/manifests/proxy.pp#L106

1. Now the user must specify each element configured in the pipeline

2. If a user forgets, they will get a failure (reference to non-existing resource)

Pros:

  1. The user only has to deal with classes

  2. Puppet can 'tell' the user what  classes are missing (b/c they are missing dependencies)

Cons:

  1. There is no way to specify a dependency on things other than require/before/notify/subscribe. Therefor, you must specify an order dependency on these classes.