Add facility to borg-backup role to run a command and save the output of it to a separate archive file during the backup process. This is mostly useful for database backups. Compressed on-disk logs are terrible for differential backups because revisions have essentially no common data. By saving the uncompressed stream directly from mysqldump, we allow borg the chance to de-duplicate, saving considerable space on the backup servers. This is implemented for our ansible-managed servers currently doing dumps. We also add it to the testinfra. This also separates the archive names for the filesystem and stream backup with unique prefixes so they can be pruned separately. Otherwise we end up keeping only one of the stream or filesystem backups which isn't the intention. However, due to issues with --append-only mode we are not issuing prune commands at this time. Note the updated dump commands are updated slightly, particularly with "--skip-extended-insert" which was suggested by mordred and significantly improves incremental diff-ability by being slightly more verbose but keeping much more of the output stable across dumps. Change-Id: I500062c1c52c74a567621df9aaa716de804ffae7
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
will show you how it is configured.
Most services are deployed via containers; many of them are built or
customised in this repository; see
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
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
Once changes are reviewed and committed, they will be applied
automatically to the production hosts. This is done by Zuul jobs running
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
pipeline, which ensures things like upstream package updates or
certificate renewals are incorporated in a timely fashion).
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.
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 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.
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.