安装源：
git clone https://gitlab.com/gitlab-org/gitlab-ce.git -b 7-10-stable gitlab
安装文档：
在github上：gitlabhq/doc/install/installation.md
执行：sudo -u git -H bundle install --deployment --without development test mysql aws
报错信息如下：
Errno::ECONNRESET: Connection reset by peer - SSL_connect (http://rubygems.org/)
解决：修改gem source
修改运行目录中的Gemfile文件的第一行：
source "https://ruby.taobao.org/"
重新安装ruby，执行遇到以下问题：
ERROR: Error installing bluecloth:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
extconf.rb
mkmf.rb can't find header files for ruby at
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h
可以通过安装ruby-devel来解决。但是在ubuntu系统下要用以下命令：
apt-get install ruby-full
然后又出现以下错误：
git@test1host:~/gitlab$ bundle install --deployment --without development test mysql aws
Fetching source index from https://ruby.taobao.org/
Using rake 10.4.2
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/bin/ruby2.1 extconf.rb
checking for main() in -lc... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.
Provided configuration options:
--with-opt-dir
......
解决：更新gcc，更换ubuntu官方源，apt-get重新安装gcc并安装g++。