安装依赖：
yum -y install curl-devel expat-devel gettext-devel openssl-devel zlib-devel perl-devel
git安装
下载git安装包：
wget https://www.kernel.org/pub/software/scm/git/git-2.9.0.tar.gz
解压安装：
tar -zxvf git-2.9.0.tar.gz
cd git-2.9.0
make prefix=/usr/local all
编译时出现如下异常：
libgit.a(utf8.o): In function `reencode_string_iconv‘:
/root/git-2.9.0/utf8.c:463: undefined reference to `libiconv‘
libgit.a(utf8.o): In function `reencode_string_len‘:
/root/git-2.9.0/utf8.c:502: undefined reference to `libiconv_open‘
/root/git-2.9.0/utf8.c:521: undefined reference to `libiconv_close‘
/root/git-2.9.0/utf8.c:515: undefined reference to `libiconv_open‘
collect2: ld 返回 1
make: *** [git-credential-store] 错误 1
下载并安装libiconv
cd ..
wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz
tar -zxvf libiconv-1.14.tar.gz
cd libiconv-1.14
./configure --prefix=/usr/local/libiconv && make && make install
返回git再次编译安装
cd ../git-2.9.0
make prefix=/usr/local/git all
# make prefix=/usr/local/git install
# echo "export PATH=$PATH:/usr/local/git/bin" >> /etc/bashrc
# source /etc/bashrc
查看安装是否正确及安装的版本：
# git --version
git version 2.9.0
安装gitlab
vi /etc/yum.repos.d/gitlab-ce.repo
添加如下内容
[gitlab-ce] name=gitlab-ce baseurl=http://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el6 repo_gpgcheck=0 gpgcheck=0 enabled=1 gpgkey=https://packages.gitlab.com/gpg.key
执行
yum makecache
yum install gitlab-ce
安装成功后修改配置文件，修改访问url等
编辑/etc/gitlab/gitlab.rb，将其修改为你的ip和url如：
external_url "http://你的ip/gitlab"
修改后运行
gitlab-ctl reconfigure
gitlab-ctl restart
最后通过：http://你的ip/gitlab，看能否正常运行。初次运行时需要重置root用户密码。