gitlab-org--gitlab-foss/doc/development/licensed_feature_availability.md

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Licensed feature availability (STARTER)

As of GitLab 9.4, we've been supporting a simplified version of licensed feature availability checks via ee/app/models/license.rb, both for on-premise or GitLab.com plans and features.

Restricting features scoped by namespaces or projects

GitLab.com plans are persisted on user groups and namespaces, therefore, if you're adding a feature such as Related issues or Service desk, it should be restricted on namespace scope.

  1. Add the feature symbol on EES_FEATURES, EEP_FEATURES or EEU_FEATURES constants in ee/app/models/license.rb. Note on ee/app/models/ee/namespace.rb that Bronze GitLab.com features maps to on-premise EES, Silver to EEP and Gold to EEU.
  2. Check using:
project.feature_available?(:feature_symbol)

Restricting global features (instance)

However, for features such as Geo and Load balancing, which cannot be restricted to only a subset of projects or namespaces, the check will be made directly in the instance license.

  1. Add the feature symbol on EES_FEATURES, EEP_FEATURES or EEU_FEATURES constants in ee/app/models/license.rb.
  2. Add the same feature symbol to GLOBAL_FEATURES
  3. Check using:
License.feature_available?(:feature_symbol)

Enabling promo features on GitLab.com

A paid feature can be made available to everyone on GitLab.com by enabling the feature flag "promo_#{feature}".