Use sockets to connect to Redis

CHANGELOG

 v 7.3.0
   - Always set the 'origin' remote in satellite actions
   - Write authorized_keys in tmp/ during tests
+  - Use sockets to connect to Redis
   - Expire Rack sessions after 1 week
   - Cleaner signin/signup pages
   - Improved comments UI

config/resque.yml.example

 development: redis://localhost:6379
 test: redis://localhost:6379
-production: redis://redis.example.com:6379
+production: unix:/var/run/redis/redis.sock

doc/install/installation.md

@@ -133,7 +133,21 @@ We recommend using a PostgreSQL database. For MySQL check [MySQL setup guide](da
     # Try connecting to the new database with the new user
     sudo -u git -H psql -d gitlabhq_production
-## 5. GitLab
+## 5. Redis
+
+    sudo apt-get install redis-server
+
+    # Configure redis to use sockets
+    sudo cp /etc/redis/redis.conf /etc/redis/redis.conf.orig
+    sed -e 's/^# unixsocket /unixsocket /' -e 's/^port .*/port 0/' /etc/redis/redis.conf.orig | sudo tee /etc/redis/redis.conf
+
+    # Activate the changes to redis.conf
+    sudo service redis-server restart
+
+    # Add git to the redis group
+    sudo usermod -aG redis git
+
+## 6. GitLab
     # We'll install GitLab into home directory of the user "git"
     cd /home/git
@@ -189,6 +203,12 @@ We recommend using a PostgreSQL database. For MySQL check [MySQL setup guide](da
     sudo -u git -H git config --global user.email "example@example.com"
     sudo -u git -H git config --global core.autocrlf input
+    # Configure Redis connection settings
+    sudo -u git -H cp config/resque.yml.example config/resque.yml
+
+    # Change the Redis socket path if necessary
+    sudo -u git -H editor config/resque.yml
+
 **Important Note:** Make sure to edit both `gitlab.yml` and `unicorn.rb` to match your setup.
 **Note:** If you want to use HTTPS, see [Using HTTPS](#using-https) for the additional steps.
@@ -284,7 +304,7 @@ Check if GitLab and its environment are configured correctly:
     # or
     sudo /etc/init.d/gitlab restart
-## 6. Nginx
+## 7. Nginx
 **Note:** Nginx is the officially supported web server for GitLab. If you cannot or do not want to use Nginx as your web server, have a look at the [GitLab recipes](https://gitlab.com/gitlab-org/gitlab-recipes/).

doc/update/7.2-to-7.3.md

@@ -7,4 +7,25 @@ This document currently just serves as a place to keep track of updates that wil
 ### Update config files
 * HTTP setups: Make `/etc/nginx/sites-available/nginx` the same as https://gitlab.com/gitlab-org/gitlab-ce/blob/7-0-stable/lib/support/nginx/gitlab but with your settings.
-* HTTPS setups: Make `/etc/nginx/sites-available/nginx-ssl` the same as https://gitlab.com/gitlab-org/gitlab-ce/blob/7-0-stable/lib/support/nginx/gitlab-ssl but with your setting
+* HTTPS setups: Make `/etc/nginx/sites-available/nginx-ssl` the same as https://gitlab.com/gitlab-org/gitlab-ce/blob/7-0-stable/lib/support/nginx/gitlab-ssl but with your setting
\ No newline at end of file
+
+### Configure Redis to use sockets
+
+    # Configure redis to use sockets
+    sudo cp /etc/redis/redis.conf /etc/redis/redis.conf.orig
+    sed -e 's/^# unixsocket /unixsocket /' -e 's/^port .*/port 0/' /etc/redis/redis.conf.orig | sudo tee /etc/redis/redis.conf
+    # Activate the changes to redis.conf
+    sudo service redis-server restart
+    # Add git to the redis group
+    sudo usermod -aG redis git
+
+    cd /home/git/gitlab
+    # Configure Redis connection settings
+    sudo -u git -H cp config/resque.yml.example config/resque.yml
+    # Change the Redis socket path if necessary
+    sudo -u git -H editor config/resque.yml
+
+    cd /home/git/gitlab-shell
+    # Configure gitlab-shell to use Redis sockets
+    sudo -u git -H sed -i 's|^  # socket.*|  socket: /var/run/redis/redis.sock|' config.yml
+