From 5.1 to 5.4

Make sure you view this upgrade guide from the master branch for the most up to date instructions.

Also works starting from 5.2.

0. Backup

It's useful to make a backup just in case things go south (with MySQL, this may require granting "LOCK TABLES" privileges to the GitLab user on the database version):

cd /home/git/gitlab
sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production

1. Stop server

sudo service gitlab stop

2. Get latest code

cd /home/git/gitlab
sudo -u git -H git fetch
sudo -u git -H git checkout 5-4-stable # Latest version of 5-4-stable addresses CVE-2013-4489

3. Update gitlab-shell

cd /home/git/gitlab-shell
sudo -u git -H git fetch
sudo -u git -H git checkout v1.7.9 # Addresses multiple critical security vulnerabilities

4. Install libs, migrations, etc.

cd /home/git/gitlab

# The Modernizr gem was yanked from RubyGems. It is required for GitLab >= 2.8.0
# Edit `Gemfile` and change `gem "modernizr", "2.5.3"` to
# `gem "modernizr-rails", "2.7.1"``
sudo -u git -H vim Gemfile

# MySQL

# Run a bundle install without deployment to generate the new Gemfile
sudo -u git -H bundle install --without development test postgres --no-deployment

# Install libs (with deployment this time)
sudo -u git -H bundle install --without development test postgres --deployment

# PostgreSQL

# Run a bundle install without deployment to generate the new Gemfile
sudo -u git -H bundle install --without development test mysql --no-deployment

# Install libs (with deployment this time)
sudo -u git -H bundle install --without development test mysql --deployment

# Both MySQL and PostgreSQL
sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production

5. Update config files

Make /home/git/gitlab/config/gitlab.yml same as https://gitlab.com/gitlab-org/gitlab-ce/blob/5-4-stable/config/gitlab.yml.example but with your settings.
Make /home/git/gitlab/config/puma.rb same as https://gitlab.com/gitlab-org/gitlab-ce/blob/5-4-stable/config/puma.rb.example but with your settings.

6. Update Init script

sudo rm /etc/init.d/gitlab
sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
sudo chmod +x /etc/init.d/gitlab

7. Create uploads directory

cd /home/git/gitlab
sudo -u git -H mkdir public/uploads
sudo chmod -R u+rwX  public/uploads

8. Start application

sudo service gitlab start
sudo service nginx restart

9. Check application status

Check if GitLab and its environment are configured correctly:

sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

To make sure you didn't miss anything run a more thorough check with:

sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

If all items are green, then congratulations upgrade complete!

Things went south? Revert to previous version (5.3)

1. Revert the code to the previous version

Follow the upgrade guide from 5.2 to 5.3, except for the database migration (the backup is already migrated to the previous version).

2. Restore from the backup:

cd /home/git/gitlab
sudo -u git -H bundle exec rake gitlab:backup:restore RAILS_ENV=production

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