gitlab-org--gitlab-foss/doc/install/installation.md
2014-11-26 15:49:25 +01:00

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# Installation
## Consider the Omnibus package installation
Since a manual installation is a lot of work and error prone we strongly recommend the fast and reliable [Omnibus package installation](https://about.gitlab.com/downloads/) (deb/rpm).
## Select Version to Install
Make sure you view [this installation guide](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/install/installation.md) from the tag (version) of GitLab you would like to install.
In most cases this should be the highest numbered production tag (without rc in it).
You can select the tag in the version dropdown in the top left corner of GitLab (below the menu bar).
If the highest number stable branch is unclear please check the [GitLab Blog](https://about.gitlab.com/blog/) for installation guide links by version.
## Important Notes
This guide is long because it covers many cases and includes all commands you need, this is [one of the few installation scripts that actually works out of the box](https://twitter.com/robinvdvleuten/status/424163226532986880).
This installation guide was created for and tested on **Debian/Ubuntu** operating systems. Please read [doc/install/requirements.md](./requirements.md) for hardware and operating system requirements. If you want to install on RHEL/CentOS we recommend using the [Omnibus packages](https://about.gitlab.com/downloads/).
This is the official installation guide to set up a production server. To set up a **development installation** or for many other installation options please see [the installation section of the readme](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/README.md#installation).
The following steps have been known to work. Please **use caution when you deviate** from this guide. Make sure you don't violate any assumptions GitLab makes about its environment. For example many people run into permission problems because they changed the location of directories or run services as the wrong user.
If you find a bug/error in this guide please **submit a merge request** following the [contributing guide](../../CONTRIBUTING.md).
## Overview
The GitLab installation consists of setting up the following components:
1. Packages / Dependencies
1. Ruby
1. System Users
1. Database
1. Redis
1. GitLab
1. Nginx
## 1. Packages / Dependencies
`sudo` is not installed on Debian by default. Make sure your system is
up-to-date and install it.
# run as root!
apt-get update -y
apt-get upgrade -y
apt-get install sudo -y
**Note:** During this installation some files will need to be edited manually. If you are familiar with vim set it as default editor with the commands below. If you are not familiar with vim please skip this and keep using the default editor.
# Install vim and set as default editor
sudo apt-get install -y vim
sudo update-alternatives --set editor /usr/bin/vim.basic
Install the required packages (needed to compile Ruby and native extensions to Ruby gems):
sudo apt-get install -y build-essential zlib1g-dev libyaml-dev libssl-dev libgdbm-dev libreadline-dev libncurses5-dev libffi-dev curl openssh-server redis-server checkinstall libxml2-dev libxslt-dev libcurl4-openssl-dev libicu-dev logrotate python-docutils pkg-config cmake
Make sure you have the right version of Git installed
# Install Git
sudo apt-get install -y git-core
# Make sure Git is version 1.7.10 or higher, for example 1.7.12 or 2.0.0
git --version
Is the system packaged Git too old? Remove it and compile from source.
# Remove packaged Git
sudo apt-get remove git-core
# Install dependencies
sudo apt-get install -y libcurl4-openssl-dev libexpat1-dev gettext libz-dev libssl-dev build-essential
# Download and compile from source
cd /tmp
curl -L --progress https://www.kernel.org/pub/software/scm/git/git-2.1.2.tar.gz | tar xz
cd git-2.1.2/
./configure
make prefix=/usr/local all
# Install into /usr/local/bin
sudo make prefix=/usr/local install
# When editing config/gitlab.yml (Step 5), change the git -> bin_path to /usr/local/bin/git
**Note:** In order to receive mail notifications, make sure to install a mail server. By default, Debian is shipped with exim4 but this [has problems](https://github.com/gitlabhq/gitlabhq/issues/4866#issuecomment-32726573) while Ubuntu does not ship with one. The recommended mail server is postfix and you can install it with:
sudo apt-get install -y postfix
Then select 'Internet Site' and press enter to confirm the hostname.
## 2. Ruby
The use of Ruby version managers such as [RVM](http://rvm.io/), [rbenv](https://github.com/sstephenson/rbenv) or [chruby](https://github.com/postmodern/chruby) with GitLab in production frequently leads to hard to diagnose problems. For example, GitLab Shell is called from OpenSSH and having a version manager can prevent pushing and pulling over SSH. Version managers are not supported and we strongly advise everyone to follow the instructions below to use a system Ruby.
Remove the old Ruby 1.8 if present
sudo apt-get remove ruby1.8
Download Ruby and compile it:
mkdir /tmp/ruby && cd /tmp/ruby
curl -L --progress http://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.5.tar.gz | tar xz
cd ruby-2.1.5
./configure --disable-install-rdoc
make
sudo make install
Install the Bundler Gem:
sudo gem install bundler --no-ri --no-rdoc
## 3. System Users
Create a `git` user for GitLab:
sudo adduser --disabled-login --gecos 'GitLab' git
## 4. Database
We recommend using a PostgreSQL database. For MySQL check [MySQL setup guide](database_mysql.md). *Note*: because we need to make use of extensions you need at least pgsql 9.1.
# Install the database packages
sudo apt-get install -y postgresql postgresql-client libpq-dev
# Login to PostgreSQL
sudo -u postgres psql -d template1
# Create a user for GitLab
# Do not type the 'template1=#', this is part of the prompt
template1=# CREATE USER git CREATEDB;
# Create the GitLab production database & grant all privileges on database
template1=# CREATE DATABASE gitlabhq_production OWNER git;
# Quit the database session
template1=# \q
# Try connecting to the new database with the new user
sudo -u git -H psql -d gitlabhq_production
# Quit the database session
gitlabhq_production> \q
## 5. Redis
sudo apt-get install redis-server
# Configure redis to use sockets
sudo cp /etc/redis/redis.conf /etc/redis/redis.conf.orig
# Disable Redis listening on TCP by setting 'port' to 0
sed 's/^port .*/port 0/' /etc/redis/redis.conf.orig | sudo tee /etc/redis/redis.conf
# Enable Redis socket for default Debian / Ubuntu path
echo 'unixsocket /var/run/redis/redis.sock' | sudo tee -a /etc/redis/redis.conf
# Grant permission to the socket to all members of the redis group
echo 'unixsocketperm 770' | sudo tee -a /etc/redis/redis.conf
# Create the directory which contains the socket
mkdir /var/run/redis
chown redis:redis /var/run/redis
chmod 755 /var/run/redis
# Persist the directory which contains the socket, if applicable
if [ -d /etc/tmpfiles.d ]; then
echo 'd /var/run/redis 0755 redis redis 10d -' | sudo tee -a /etc/tmpfiles.d/redis.conf
fi
# 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
### Clone the Source
# Clone GitLab repository
sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 7-5-stable gitlab
**Note:** You can change `7-5-stable` to `master` if you want the *bleeding edge* version, but never install master on a production server!
### Configure It
# Go to GitLab installation folder
cd /home/git/gitlab
# Copy the example GitLab config
sudo -u git -H cp config/gitlab.yml.example config/gitlab.yml
# Update GitLab config file, follow the directions at top of file
sudo -u git -H editor config/gitlab.yml
# Make sure GitLab can write to the log/ and tmp/ directories
sudo chown -R git log/
sudo chown -R git tmp/
sudo chmod -R u+rwX,go-w log/
sudo chmod -R u+rwX tmp/
# Create directory for satellites
sudo -u git -H mkdir /home/git/gitlab-satellites
sudo chmod u+rwx,g=rx,o-rwx /home/git/gitlab-satellites
# Make sure GitLab can write to the tmp/pids/ and tmp/sockets/ directories
sudo chmod -R u+rwX tmp/pids/
sudo chmod -R u+rwX tmp/sockets/
# Make sure GitLab can write to the public/uploads/ directory
sudo chmod -R u+rwX public/uploads
# Copy the example Unicorn config
sudo -u git -H cp config/unicorn.rb.example config/unicorn.rb
# Find number of cores
nproc
# Enable cluster mode if you expect to have a high load instance
# Ex. change amount of workers to 3 for 2GB RAM server
# Set the number of workers to at least the number of cores
sudo -u git -H editor config/unicorn.rb
# Copy the example Rack attack config
sudo -u git -H cp config/initializers/rack_attack.rb.example config/initializers/rack_attack.rb
# Configure Git global settings for git user, useful when editing via web
# Edit user.email according to what is set in gitlab.yml
sudo -u git -H git config --global user.name "GitLab"
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 you are not using the default Debian / Ubuntu configuration
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.
### Configure GitLab DB Settings
# PostgreSQL only:
sudo -u git cp config/database.yml.postgresql config/database.yml
# MySQL only:
sudo -u git cp config/database.yml.mysql config/database.yml
# MySQL and remote PostgreSQL only:
# Update username/password in config/database.yml.
# You only need to adapt the production settings (first part).
# If you followed the database guide then please do as follows:
# Change 'secure password' with the value you have given to $password
# You can keep the double quotes around the password
sudo -u git -H editor config/database.yml
# PostgreSQL and MySQL:
# Make config/database.yml readable to git only
sudo -u git -H chmod o-rwx config/database.yml
### Install Gems
**Note:** As of bundler 1.5.2, you can invoke `bundle install -jN` (where `N` the number of your processor cores) and enjoy the parallel gems installation with measurable difference in completion time (~60% faster). Check the number of your cores with `nproc`. For more information check this [post](http://robots.thoughtbot.com/parallel-gem-installing-using-bundler). First make sure you have bundler >= 1.5.2 (run `bundle -v`) as it addresses some [issues](https://devcenter.heroku.com/changelog-items/411) that were [fixed](https://github.com/bundler/bundler/pull/2817) in 1.5.2.
# For PostgreSQL (note, the option says "without ... mysql")
sudo -u git -H bundle install --deployment --without development test mysql aws
# Or if you use MySQL (note, the option says "without ... postgres")
sudo -u git -H bundle install --deployment --without development test postgres aws
### Install GitLab Shell
GitLab Shell is an SSH access and repository management software developed specially for GitLab.
# Run the installation task for gitlab-shell (replace `REDIS_URL` if needed):
sudo -u git -H bundle exec rake gitlab:shell:install[v2.2.0] REDIS_URL=unix:/var/run/redis/redis.sock RAILS_ENV=production
# By default, the gitlab-shell config is generated from your main GitLab config.
# You can review (and modify) the gitlab-shell config as follows:
sudo -u git -H editor /home/git/gitlab-shell/config.yml
**Note:** If you want to use HTTPS, see [Using HTTPS](#using-https) for the additional steps.
### Initialize Database and Activate Advanced Features
sudo -u git -H bundle exec rake gitlab:setup RAILS_ENV=production
# Type 'yes' to create the database tables.
# When done you see 'Administrator account created:'
**Note:** You can set the Administrator password by supplying it in environmental variable `GITLAB_ROOT_PASSWORD`, eg.:
sudo -u git -H bundle exec rake gitlab:setup RAILS_ENV=production GITLAB_ROOT_PASSWORD=newpassword
### Install Init Script
Download the init script (will be `/etc/init.d/gitlab`):
sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
And if you are installing with a non-default folder or user copy and edit the defaults file:
sudo cp lib/support/init.d/gitlab.default.example /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:
sudo update-rc.d gitlab defaults 21
### Setup Logrotate
sudo cp lib/support/logrotate/gitlab /etc/logrotate.d/gitlab
### 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
### Compile Assets
sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production
### Start Your GitLab Instance
sudo service gitlab start
# or
sudo /etc/init.d/gitlab restart
## 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/).
### Installation
sudo apt-get install -y nginx
### Site Configuration
Copy the example site config:
sudo cp lib/support/nginx/gitlab /etc/nginx/sites-available/gitlab
sudo ln -s /etc/nginx/sites-available/gitlab /etc/nginx/sites-enabled/gitlab
Make sure to edit the config file to match your setup:
# Change YOUR_SERVER_FQDN to the fully-qualified
# domain name of your host serving GitLab.
sudo editor /etc/nginx/sites-available/gitlab
**Note:** If you want to use HTTPS, replace the `gitlab` Nginx config with `gitlab-ssl`. See [Using HTTPS](#using-https) for HTTPS configuration details.
### Test Configuration
Validate your `gitlab` or `gitlab-ssl` Nginx config file with the following command:
sudo nginx -t
You should receive `syntax is okay` and `test is successful` messages. If you receive errors check your `gitlab` or `gitlab-ssl` Nginx config file for typos, etc. as indicated in the error message given.
### Restart
sudo service nginx restart
## Done!
### Double-check Application Status
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 on successfully installing GitLab!
NOTE: Supply `SANITIZE=true` environment variable to `gitlab:check` to omit project names from the output of the check command.
### Initial Login
Visit YOUR_SERVER in your web browser for your first GitLab login. The setup has created an admin account for you. You can use it to log in:
root
5iveL!fe
**Important Note:** Please go over to your profile page and immediately change the password, so nobody can access your GitLab by using this login information later on.
**Enjoy!**
## Advanced Setup Tips
### Using HTTPS
To use GitLab with HTTPS:
1. In `gitlab.yml`:
1. Set the `port` option in section 1 to `443`.
1. Set the `https` option in section 1 to `true`.
1. In the `config.yml` of gitlab-shell:
1. Set `gitlab_url` option to the HTTPS endpoint of GitLab (e.g. `https://git.example.com`).
1. Set the certificates using either the `ca_file` or `ca_path` option.
1. Use the `gitlab-ssl` Nginx example config instead of the `gitlab` config.
1. Update `YOUR_SERVER_FQDN`.
1. Update `ssl_certificate` and `ssl_certificate_key`.
1. Review the configuration file and consider applying other security and performance enhancing features.
Using a self-signed certificate is discouraged but if you must use it follow the normal directions then:
1. Generate a self-signed SSL certificate:
```
mkdir -p /etc/nginx/ssl/
cd /etc/nginx/ssl/
sudo openssl req -newkey rsa:2048 -x509 -nodes -days 3560 -out gitlab.crt -keyout gitlab.key
sudo chmod o-r gitlab.key
```
1. In the `config.yml` of gitlab-shell set `self_signed_cert` to `true`.
### Additional Markup Styles
Apart from the always supported markdown style there are other rich text files that GitLab can display. But you might have to install a dependency to do so. Please see the [github-markup gem readme](https://github.com/gitlabhq/markup#markups) for more information.
### Custom Redis Connection
If you'd like Resque to connect to a Redis server on a non-standard port or on a different host, you can configure its connection string via the `config/resque.yml` file.
# example
production: redis://redis.example.tld:6379
If you want to connect the Redis server via socket, then use the "unix:" URL scheme and the path to the Redis socket file in the `config/resque.yml` file.
# example
production: unix:/path/to/redis/socket
### Custom SSH Connection
If you are running SSH on a non-standard port, you must change the GitLab user's SSH config.
# Add to /home/git/.ssh/config
host localhost # Give your setup a name (here: override localhost)
user git # Your remote git user
port 2222 # Your port number
hostname 127.0.0.1; # Your server name or IP
You also need to change the corresponding options (e.g. `ssh_user`, `ssh_host`, `admin_uri`) in the `config\gitlab.yml` file.
### LDAP Authentication
You can configure LDAP authentication in `config/gitlab.yml`. Please restart GitLab after editing this file.
### Using Custom Omniauth Providers
See the [omniauth integration document](doc/integration/omniauth.md)