Support automatically importing a local EE license during initial install

Problem to solve

Automatically providing a bundled license file in certain GitLab packages. See https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4225 (GitLab-org only)

Intended users

Internal primarily. The ~Distribution team would like to use this feature in automated installations. This could also be useful for GitLab System Admin when initially setting up their instance.

Proposal

Add a new db production fixture that checks for the existence of an GITLAB_EE_LICENSE_FILEPATH and whether the referenced file exists, then imports the file into the licenses table.

By default, we will check config/GitLab.gitlab-license for source installs, and /etc/gitlab/GitLab.gitlab-license for omnibus.

Permissions and Security

Only used during db seeding, by the System Admin.

Links / references