e182394e97
Change I4789fe99651597b073e35066ec3be312e18659b8 made me realise that with the extant code, nothing will update the /usr/ansible-env environment when we bump the versions. The installation of the Ansible, openstacksdk and ARA packages as part of the "install-ansible" role was done this way to facilitate being able to install all three of these from their main/master/devel branches for the "-devel" job, which is our basic canary for upstream things that might affect us. Because of the way the pip: role works with "state: latest" and mixing on-disk paths with pypi package names, this became a bit of a complex swizzling operation. Some thing have changed since then; particularly us now using a separate venv and upstream Ansible's change to use "collections"; so pulling in a bug-fix for Ansible is not as simple as just cloning github.com/ansible/ansible at a particular tag any more. This means we should reconsider how we're specifying the packages here. This simplifies things to list the required packages in a requirements.txt file, which we install into the venv root. The nice thing about this is that creating requirements.txt with the template: role is idempotent, so we can essentially monitor the file for changes and only (re-)run the pip install into /usr/ansible-env when we change versions (forcing upgrades so we get the versions we want, and fixing the original issue mentioned above). Change-Id: I3696740112fa691d1700040b557f53f6721393e7
OpenDev System Configuration
This is the machinery that drives the configuration, testing, continuous integration and deployment of services provided by the OpenDev project.
Services are driven by Ansible playbooks and associated roles stored
here. If you are interested in the configuration of a particular
service, starting at playbooks/service-<name>.yaml
will show you how it is configured.
Most services are deployed via containers; many of them are built or
customised in this repository; see docker/.
A small number of legacy services are still configured with Puppet.
Although the act of running puppet on these hosts is managed by Ansible,
the actual core of their orchestration lives in manifests
and modules.
The files in this repository are provided as an opinionated example service deployment, and to allow the OpenDev Collaboratory to use public software development workflows in order to coordinate changes and improvements to the systems it runs. This repository is not intended as a reconsumable project on its own, and anyone wishing to adjust it to suit their own needs should do so with a fork. The system-config reviewers are unable to evaluate and support use cases for the contents here other than their own.
Testing
OpenDev infrastructure runs a complete testing and continuous-integration environment, powered by Zuul.
Any changes to playbooks, roles or containers will trigger jobs to thoroughly test those changes.
Tests run the orchestration for the modified services on test nodes
assigned to the job. After the testing deployment is configured
(validating the basic environment at least starts running), specific
tests are configured in the testinfra directory to validate
functionality.
Continuous Deployment
Once changes are reviewed and committed, they will be applied
automatically to the production hosts. This is done by Zuul jobs running
in the deploy pipeline. At any one time, you may see these
jobs running live on the status page or
you could check historical runs on the pipeline
results (note there is also an opendev-prod-hourly
pipeline, which ensures things like upstream package updates or
certificate renewals are incorporated in a timely fashion).
Contributing
Contributions are welcome!
You do not need any special permissions to make contributions, even those that will affect production services. Your changes will be automatically tested, reviewed by humans and, once accepted, deployed automatically.
Bug fixes or modifications to existing code are great places to start, and you will see the results of your changes in CI testing. Please remember that this repository consists of configuration and orchestration for OpenDev Collaboratory production systems, so contributions to it will be evaluated on the basis of whether they're useful or applicable to OpenDev's services. Changes intended to make the contents more easily reusable outside OpenDev itself are not in scope, and so will be rejected by reviewers.
You can develop all the playbooks, roles, containers and testing required for a new service just by uploading a change. Using a similar service as a template is generally a good place to start. If deploying to production will require new compute resources (servers, volumes, etc.) these will have to be deployed by an OpenDev administrator before your code is committed. Thus if you know you will need new resources, it is best to coordinate this before review.
The #opendev IRC on OFTC channel is the main place for interactive discussion. Feel free to ask any questions and someone will try to help ASAP. The OpenDev meeting is a co-ordinated time to synchronize on infrastructure issues. Issues should be added to the agenda for discussion; even if you can not attend, you can raise your issue and check back on the logs later. There is also the service-discuss mailing list where you are welcome to send queries or questions.
Documentation
The latest documentation is available at https://docs.opendev.org/opendev/system-config/latest/
That documentation is generated from this repository. You can geneate
it yourself with tox -e docs.