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GitLab Tutorials: Gitlab Installation Environment variables

GitLab exposes certain environment variables which can be used to override their defaults values.

People usually configure GitLab with /etc/gitlab/gitlab.rb for Omnibus installations, or gitlab.yml for installations from source.

You can use the following environment variables to override certain values:

Supported environment variables

DATABASE_URLstringThe database URL; is of the form: postgresql://localhost/blog_development.
ENABLE_BOOTSNAPstringToggles Bootsnap for speeding up initial Rails boot. Enabled by default for non-production environments. Set to 0 to disable.
EXTERNAL_URLstringSpecify the external URL at the time of installation.
EXTERNAL_VALIDATION_SERVICE_TIMEOUTintegerTimeout, in seconds, for an external CI/CD pipeline validation service. Default is 5.
EXTERNAL_VALIDATION_SERVICE_URLstringURL to an external CI/CD pipeline validation service.
EXTERNAL_VALIDATION_SERVICE_TOKENstringThe X-Gitlab-Token for authentication with an external CI/CD pipeline validation service.
GITLAB_CDN_HOSTstringSets the base URL for a CDN to serve static assets (for example,
GITLAB_EMAIL_DISPLAY_NAMEstringThe name used in the From field in emails sent by GitLab.
GITLAB_EMAIL_FROMstringThe email address used in the From field in emails sent by GitLab.
GITLAB_EMAIL_REPLY_TOstringThe email address used in the Reply-To field in emails sent by GitLab.
GITLAB_EMAIL_SUBJECT_SUFFIXstringThe email subject suffix used in emails sent by GitLab.
GITLAB_HOSTstringThe full URL of the GitLab server (including http:// or https://).
GITLAB_MARKUP_TIMEOUTstringTimeout, in seconds, for rest2html and pod2html commands executed by the gitlab-markup gem. Default is 10.
GITLAB_ROOT_PASSWORDstringSets the password for the root user on installation.
GITLAB_SHARED_RUNNERS_REGISTRATION_TOKENstringSets the initial registration token used for runners.
RAILS_ENVstringThe Rails environment; can be one of productiondevelopmentstaging, or test.
UNSTRUCTURED_RAILS_LOGstringEnables the unstructured log in addition to JSON logs (defaults to true).

Adding more variables

We welcome merge requests to make more settings configurable by using variables. Make changes to the config/initializers/1_settings.rb file, and use the naming scheme GITLAB_#{name in 1_settings.rb in upper case}

Rajesh Kumar
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