Added example defaults file and appropriate documentation.

doc/install/installation.md

@@ -281,8 +281,10 @@ Make sure to edit both `gitlab.yml` and `unicorn.rb` to match your setup.
 
 Download the init script (will be /etc/init.d/gitlab):
 
-    sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
-    sudo chmod +x /etc/init.d/gitlab
+    sudo ln -s lib/support/init.d/gitlab /etc/init.d/gitlab
+    sudo cp lib/support/init.d/gitlab /etc/default/gitlab
+
+If you installed gitlab in another directory or as a user other than the default you should change these settings in /etc/default/gitlab. Do not edit /etc/init.d/gitlab as it will be changed on upgrade.
 
 Make GitLab start on boot:
 

lib/support/init.d/gitlab

@@ -15,11 +15,20 @@
 # Description:       GitLab git repository management
 ### END INIT INFO
 
+
+###
+# DO NOT EDIT THIS FILE!
+# This file will be overwritten on update.
+# Instead add/change your variables in /etc/default/gitlab
+# An example defaults file can be found in lib/support/default/gitlab
+###
+
+
 ### Environment variables
 RAILS_ENV="production"
 
-# Script variable names should be lower-case not to conflict with internal
-# /bin/sh variables such as PATH, EDITOR or SHELL.
+# Script variable names should be lower-case not to conflict with
+# internal /bin/sh variables such as PATH, EDITOR or SHELL.
 app_user="git"
 app_root="/home/$app_user/gitlab"
 pid_path="$app_root/tmp/pids"
@@ -27,10 +36,6 @@ socket_path="$app_root/tmp/sockets"
 web_server_pid_path="$pid_path/unicorn.pid"
 sidekiq_pid_path="$pid_path/sidekiq.pid"
 
-
-
-### Here ends user configuration ###
-
 # Read configuration variable file if it is present
 test -f /etc/default/gitlab && . /etc/default/gitlab
 
@@ -39,11 +44,12 @@ if [ "$USER" != "$app_user" ]; then
   sudo -u "$app_user" -H -i $0 "$@"; exit;
 fi
 
-# Switch to the gitlab path, if it fails exit with an error.
+# Switch to the gitlab path, exit on failure.
 if ! cd "$app_root" ; then
  echo "Failed to cd into $app_root, exiting!";  exit 1
 fi
 
+
 ### Init Script functions
 
 ## Gets the pids from the files

lib/support/init.d/gitlab.default.example

+# Copy this lib/support/init.d/gitlab.default.example file to
+# /etc/default/gitlab in order for it to apply to your system.
+
+# RAILS_ENV defines the type of installation that is running.
+# Normal values are "production", "test" and "development".
+RAILS_ENV="production"
+
+# app_user defines the user that GitLab is run as.
+# The default is "git".
+app_user="git"
+
+# app_root defines the folder in which gitlab and it's components are installed.
+# The default is "/home/$app_user/gitlab"
+app_root="/home/$app_user/gitlab"