Re: [openstack-dev] [congress] Using congress to improve the consistency of configuration files.

2017-07-10 Thread Tim Hinrichs
Hi Valentin, Sounds like an interesting use case. Typically we've focused on information available through APIs. In this case the information would be pulled off the disks of the machines running each service. Here's the info for our weekly meeting. If you can make that, it's a good place to

Re: [openstack-dev] [congress] Using congress to improve the consistency of configuration files.

2017-07-10 Thread valentin.matton
Hi Eric, Here is the blueprint : https://blueprints.launchpad.net/congress/+spec/configuration-files-validation As Pierre Crégut presented it in his reply to Clint, the use of Congress we suggested and config management systems complement one

Re: [openstack-dev] [congress] Using congress to improve the consistency of configuration files.

2017-07-06 Thread Eric K
Hi Valentin, Very cool to hear about your use case and vision! It definitely sounds like the kind of use case Congress is well-equipped to solve using a flexible, declarative rule language. I'd love to explore the use case further (and where it fits along side config management systems as Clint

Re: [openstack-dev] [congress] Using congress to improve the consistency of configuration files.

2017-07-05 Thread pierre.cregut
This is the classical divide between workflows and business rule engines and we think that both are useful. While the first are invaluable to make a system reach a correct state, the second describe in a more declarative way what a correct state is and can also be used as a global model of the

Re: [openstack-dev] [congress] Using congress to improve the consistency of configuration files. (OpenStack-dev Digest, Vol 63, Issue 5)

2017-07-05 Thread pierre.cregut
This is the classical divide between workflows and business rule engines and we think that both are useful. While the first are invaluable to make a system reach a correct state, the second describe in a more declarative way what a correct state is and can also

Re: [openstack-dev] [congress] Using congress to improve the consistency of configuration files.

2017-07-04 Thread Clint Byrum
Excerpts from valentin.matton's message of 2017-07-04 15:29:25 +0200: > We would like to use congress to check the consistency of the > configuration files used by the various Openstack services on different > nodes. > > Although installers do a great job for ensuring that the initial >

[openstack-dev] [congress] Using congress to improve the consistency of configuration files.

2017-07-04 Thread valentin.matton
We would like to use congress to check the consistency of the configuration files used by the various Openstack services on different nodes. Although installers do a great job for ensuring that the initial definition of those files are correct, it may be necessary to tweak those files on