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GitLab Developers Guide to Working with Gitaly
Gitaly is a high-level Git RPC service used by GitLab CE/EE, Workhorse and GitLab-Shell. All Rugged operations in GitLab CE/EE are currently being phased out to be replaced by Gitaly API calls.
Visit the Gitaly Migration Board for current status of the migration.
Feature Flags
Gitaly makes heavy use of feature flags.
Each Rugged-to-Gitaly migration goes through a series of phases:
- Opt-In: by default the Rugged implementation is used.
- Production instances can choose to enable the Gitaly endpoint by enabling the feature flag.
- For testing purposes, you may wish to enable all feature flags by default. This can be done by exporting the following
environment variable:
GITALY_FEATURE_DEFAULT_ON=1. - On developer instances (ie, when
Rails.env.development?is true), the Gitaly endpoint is enabled by default, but can be disabled using feature flags.
- Opt-Out: by default, the Gitaly endpoint is used, but the feature can be explicitly disabled using the feature flag.
- Madatory: The migration is complete and cannot be disabled. The old codepath is removed.
Enabling and Disabling Feature
In the Rails console, type:
Feature.enable(:gitaly_feature_name)
Feature.disable(:gitaly_feature_name)
Where gitaly_feature_name is the name of the Gitaly feature. This can be determined by finding the appropriate
gitaly_migrate code block, for example:
gitaly_migrate(:tag_names) do
...
end
Since Gitaly features are always prefixed with gitaly_, the name of the feature flag in this case would be gitaly_tag_names.
Gitaly-Related Test Failures
If your test-suite is failing with Gitaly issues, as a first step, try running:
rm -rf tmp/tests/gitaly