Absolute path to a file with environment variables used for gitlab-runner registration with runner registration tokens.A list of all supported environment variables can be found in <code>gitlab-runner register --help</code>.The ones you probably want to set are:<ul><li><code>CI_SERVER_URL=&lt;CI server URL&gt;</code></li><li><code>REGISTRATION_TOKEN=&lt;registration secret&gt;</code></li></ul>Support for runner registration tokens is deprecated since GitLab 16.0, has been disabled by default in GitLab 17.0 and will be removed in GitLab 18.0, as outlined in the <a href="https://docs.gitlab.com/17.0/ee/ci/runners/new_creation_workflow.html#estimated-time-frame-for-planned-changes" rel="nofollow">GitLab documentation</a>. Please consider migrating to <a href="https://docs.gitlab.com/17.0/ee/ci/runners/new_creation_workflow.html#the-new-runner-registration-workflow" rel="nofollow">runner authentication tokens</a> and check the documentation on <a href="/nixpkgs/option/services.gitlab-runner.services.&lt;name&gt;.authenticationTokenConfigFile"><a href="/nixpkgs/option/services.gitlab-runner.services.&gt;name&lt;.authenticationTokenConfigFile" rel="nofollow">services.gitlab-runner.services.&lt;name&gt;.authenticationTokenConfigFile</a></a>.<div class="mnos-warning">Make sure to use a quoted absolute path, or it is going to be copied to Nix Store.</div>

services.gitlab-runner.services.<name>.registrationConfigFile

Absolute path to a file with environment variables used for gitlab-runner registration with runner…