Working With Feature Flags in Gitlab

I keep forgetting how to launch the GitLab Console to look at feature flags in gitlab¹.

Yes, I know, This is well documented already²

I figured FutureMe🐺™️ Someone else might appreciate me leaving myself a note.

If this helps someone else, YAY! That’s Awesome! I love being helpful!

docker-compose exec gitlab "gitlab-ctl" "reconfigure"

Open up the GitLab Rails console #

docker-compose exec gitlab "gitlab-rails" "console"

gitlab-rails console

Enable or disable the feature #

After the Rails console session has started, run the Feature.enable or Feature.disable commands accordingly. The specific flag can be found in the feature’s documentation itself.

Enabling: #

Feature.enable(:<feature flag>)

Feature.enable(:example_feature)

Disabling: #

Feature.disable(<feature flag>)

Feature.disable(:example_feature)

Some feature flags can be enabled or disabled on a per project basis:

Example: #

Feature.enable(:<feature flag>, Project.find(<project id>))

Feature.enable(:example_feature, Project.find(1234))

irb(main):001:0> Feature.enable(:example_feature)
=> true

Check if a feature flag is enabled #

To check if a flag is enabled or disabled, use Feature.enabled? or Feature.disabled?.

For example, for a feature flag named example_feature that is already enabled:

Feature.enabled?(:example_feature)
=> true
Feature.disabled?(:example_feature)
=> false

View set feature flags #

You can view all GitLab administrator set feature flags:

Feature.all
=> [#<Flipper::Feature:198 name="my_feature", state=:on, enabled_gate_names=[:boolean], adapter=:memoizable>]

Nice output #

Feature.all.map {|f| [f.name, f.state]}

Unsetting a feature flag #

Feature.remove(:example_feature)
=> true