Backing up the GitLab secrets file is required to avoid complicated steps when recovering GitLab from backup. The secrets file is stored at /etc/gitlab/gitlab-secrets.json inside the container, or $GITLAB_HOME/config/gitlab-secrets.json on the container host.
Two projects (yshimmyo/graduation_thesis and yshimmyo/IMUReceiver) occured errors that the repositories are read-only. I used ruby console of gitlab runtime and manually release read-only attributes following the below article.
Projects::HashedStorage::RepositoryInUseError: Target repository 'yshimmyo/IMUReceiver' cannot be made read-only: Repository already read-only
docker-compose -f docker-compose.yml -f docker-compose.without-nginx.yml -d
You can copy `app` volumes directly with a few structure changes.
Current version (2022-12-30) of mattermost is 5.26.0. Upgrading from the version requires a chain upgrade.
https://forum.mattermost.com/t/failed-to-get-channel-members-after-upgrade/13101/5
See also https://adaptive.u-aizu.ac.jp/gitlab/yshimmyo/configuration-of-adaptive-u-aizu-ac-jp
Yohei Shimmyo <d8221101@u-aizu.ac.jp> <qwpmb554@gmail.com>