[Blueprint servercloud-p-cfjuju] Juju: Configuration Management for Juju

[Clint Byrum]

Blueprint changed by Clint Byrum:

Whiteboard set to:
Work Items:
[lynxman]  write puppet external node classifier for juju status -> puppet: TODO
[clint-fewbar] Start project for recovering useful information out of juju status: TODO
[juju] after colocation investigate cli interface for local / arbitrary unit / relation info: TODO


Session notes:

We have detected a need for DSL integration in Juju, this would mean
that any of the current configuration management applications available.

Advantages
* Faster implementation of juju on running platforms
* Faster testing of juju on individual nodes
* Complements the amazing capabilities of juju with some node specific templating

TALKING POINTS
* What can DSL integration provide to juju
  - How it can complement the juju ecosystem
* Ways to export through a RESTful interface metadata from Juju
  - Ensure freshfulness statefulness of data
* Ways to implement this so Juju can action on this without problem
  - Charm integration
  - Ways of informing back to juju about provides from DSL systems
* Finding ways around the SPOFs
  - How to survive in case of miscommunication or recoverable failure

Juju roadmap right now has priority on colocation
Colocation can be used in colocation mode as well
Colocated service has access to filesystem services (whichever they are) and can establish master/slave relationships with the master unit
Juju charms can trigger an update of the facter information since it's always stateful, it can be a "trigger" on the update hook
So far the best action would be to query the CLI (juju status) and its a very effective way to recover information from juju in a quick (albeit slightly dirty) way


ACTIONS
[lynxman]  write puppet external node classifier for juju status -> puppet
[clint-fewbar] Start project for recovering useful information out of juju status
[juju] after colocation investigate cli interface for local / arbitrary unit / relation info

-- 
Juju: Configuration Management for Juju
https://blueprints.launchpad.net/ubuntu/+spec/servercloud-p-cfjuju