目前系统的环境

centos6.4 32位

已经安装MysqL Nginx
下载并安装GPG key
wget -O /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 https://www.fedoraproject.org/static/0608B895.txt
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
检验下是否安装成功
rpm -qa gpg*
安装epel-release-6-8.noarch包
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
PS.不要在意x86_64(64位)，在i686(32位)的机器上一样能使用
增加PUIAS安装源
vi /etc/yum.repos.d/PUIAS_6_computational.repo
添加如下内容：
[PUIAS_6_computational]
name=PUIAS computational Base $releasever - $basearch
mirrorlist=http://puias.math.ias.edu/data/puias/computational/$releasever/$basearch/mirrorlist
#baseurl=http://puias.math.ias.edu/data/puias/computational/$releasever/$basearch
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-puias
下载并安装GPG key
wget -O /etc/pki/rpm-gpg/RPM-GPG-KEY-puias http://springdale.math.ias.edu/data/puias/6/x86_64/os/RPM-GPG-KEY-puias
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-puias
安装GitLab的所需依赖包和工具
su -
yum -y groupinstall 'Development Tools'
yum -y install vim-enhanced readline readline-devel ncurses-devel gdbm-devel glibc-devel tcl-devel openssl-devel curl-devel expat-devel db4-devel byacc sqlite-devel gcc-c++ libyaml libyaml-devel libffi libffi-devel libxml2 libxml2-devel libxslt libxslt-devel libicu libicu-devel system-config-firewall-tui python-devel redis sudo wget crontabs logwatch logrotate perl-Time-HiRes git
配置redis
chkconfig redis on
service redis start
安装Ruby
su -
mkdir /tmp/ruby && cd /tmp/ruby
curl --progress ftp://ftp.ruby-lang.org/pub/ruby/2.3/ruby-2.3.0.tar.gz| tar xz
cd ruby-2.3.0
./configure --prefix=/usr/local/
make && make install
PS.安装完成后，重新登录终端确保$PATH生效，检测ruby的安装成功与否：
ruby -v
安装bundle
gem install bundler --no-ri --no-rdoc
创建用户git
adduser --system --shell /bin/bash --comment 'GitLab' --create-home --home-dir /home/git/ git
PS.因为git用户不需要登录，所以这里不需要设置git的密码
下载gitlab shell
https://github.com/gitlabhq/gitlab-shell/tree/v2.7.2

我这里用游览器下载的然后传到服务器上,然后修改权限
chmod -R 777 /home/git/gitlab-shell
也可以用git下载，但是比较慢
su - git
git clone https://github.com/gitlabhq/gitlab-shell.git
cd gitlab-shell
git checkout v3.4.0
我这里安装的是2.7.2
配置gitlab shell
cd gitlab-shell
cp config.yml.example config.yml
这里最重要的是将gitlab_url修改成gitlab的访问域名。比如：http://git.PHPsong.com/
修改hosts
vi /etc/hosts
添加
127.0.0.1 git.PHPsong.com
安装一些需要的目录和文件
./bin/install
安装GitLab
下载地址

https://github.com/gitlabhq/gitlabhq/tree/7-14-stable

我这里用游览器下载的然后传到服务器上,然后修改权限
chmod -R 777 /home/git/gitlab
也可以用git下载，但是比较慢
su - git
git clone https://github.com/gitlabhq/gitlabhq.git gitlab
cd /home/git/gitlab
git checkout 7-14-stable
配置项目
cd /home/git/gitlab
cp config/gitlab.yml.example config/gitlab.yml
sed -i 's|localhost|git.PHPsong.com|g' config/gitlab.yml

su -
cd /home/git/gitlab
chown -R git log/
chown -R git tmp/
chmod -R u+rwX log/
chmod -R u+rwX tmp/
chmod -R u+rwX tmp/pids/
chmod -R u+rwX tmp/sockets/
chmod -R u+rwX public/uploads

su - git
mkdir /home/git/gitlab-satellites

cd /home/git/gitlab
cp config/unicorn.rb.example config/unicorn.rb

配置数据库访问文件
cp config/database.yml.MysqL config/database.yml
vi config/database.yml
比如我的配置
#
# PRODUCTION
#
production:
  adapter: MysqL2
  encoding: utf8
  collation: utf8_general_ci
  reconnect: false
  database: gitlabhq_production
  pool: 10
  username: root
  password: "123456"
  # host: localhost
  # socket: /tmp/MysqL.sock
PS.MysqL的引擎必须是Innodb,myisam的安装会失败，可以用MysqL命令show engines查看
安装Gems
su -
gem install charlock_holmes

初始化数据和激活高级功能
PS.修改gitlab目录下的Gemfile和Gemfile.lock问首行的域名rubygems.org修改成ruby.taobao.org，修改之后执行名的命令就会比较快
su - git
cd /home/git/gitlab/
bundle install --deployment --without development test postgres puma aws
bundle exec rake gitlab:setup RAILS_ENV=production
PS.安装的时候出现如下错误



解决方法

安装nodejs http://www.PHPsong.com/2117.html

执行
gem install execjs
gem install therubyracer
安装成功之后会显示用户名和密码

login………root

password……5iveL!fe

在执行下面的命令，不然没有样式
bundle exec rake assets:precompile RAILS_ENV=production
安装启动脚本
su -
wget -O /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlab-recipes/master/init/sysvinit/centos/gitlab-unicorn
chmod +x /etc/init.d/gitlab
chkconfig --add gitlab
#开机时启动
chkconfig gitlab on
启动GitLab实例
service gitlab start
Nginx配置
su -
cp /home/git/gitlab/lib/support/Nginx/gitlab /usr/local/Nginx/conf/vhost/git.PHPsong.com.conf

修改一下里面的配置
vi /usr/local/Nginx/conf/vhost/git.PHPsong.com.conf
mkdir /var/log/Nginx
里面的内容主要修改端口和域名，如我下面的配置
#  listen 0.0.0.0:80 default_server;
#  listen [::]:80 default_server;
listen 80;
server_name git.PHPsong.com; ## Replace this with something like gitlab.example.com
检查一下Nginx配置
Nginx -t
我这里的Nginx是www的用户启动
ps aux|grep Nginx
将www加入git用户组
usermod -a -G git www
PS.如果查看/var/log/Nginx/gitlab_error.log发现错误connect() to unix:/home/git/gitlab/tmp/sockets/gitlab-workhorse.socket Failed错误

解决方法
vi /usr/local/Nginx/conf/vhost/git.PHPsong.com.conf
把修改成
upstream gitlab-workhorse {
#  server unix:/home/git/gitlab/tmp/sockets/gitlab-workhorse.socket fail_timeout=0;
  server unix:/home/git/gitlab/tmp/sockets/gitlab.socket fail_timeout=0;
}
重要错误日志文件
/home/git/gitlab/log/unicorn.stderr.log
/var/log/Nginx/gitlab_error.log
参考网址： http://my.oschina.net/wzlee/blog/262181