From 2.9 to 3.0

1. Stop server & resque

sudo service gitlab stop

2. Follow instructions

# Get latest code
git pull origin stable

# Install gems
bundle install --without development test postgres

# Migrate db
bundle exec rake db:migrate RAILS_ENV=production

# Make some changes to gitolite v3 config
# For more information visit https://github.com/gitlabhq/gitlabhq/pull/1719
sudo -u git -H sed -i "s/\(GIT_CONFIG_KEYS\s*=>*\s*\).\{2\}/\1'\.\*'/g" /home/git/.gitolite.rc

# If you still use gitolite v2
sudo -u git -H sed -i 's/\(GL_GITCONFIG_KEYS\s*=>*\s*\).\{2\}/\1"\.\*"/g' /home/git/.gitolite.rc

# Check APP Status
bundle exec rake gitlab:app:status RAILS_ENV=production

3. Start all

sudo service gitlab start