omnibus方式部署gitlab
这几天折腾搭建git服务器，选择了比较流行的gitlab，一开始就直奔一键安装脚本去了，连gitlab主页都没去看看。用的gitlab-installer，centos6.5，各种错误，各种依赖关系，还有各种无法连接，两天了都没成功。无奈手动配置，没有接触过ruby on rails，照着网上的文档抄，忍受着龟速的epel源，花了几个小时，终于配置成功。把一个项目托管上去，终于松口气，想着下班回去在配一遍，总结下过程。然而，下班回来一搜gitlab，随手打开gitlab主页，我决定暂时放弃这个想法。
因为我发现，居！然！有！官！方！的！rpm！安！装！包！
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omnibus方式部署gitlab
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Download the Omnibus package and install everything
curl -O https://downloads-packages.s3.amazonaws.com/centos-6.6/gitlab-7.6.2_omnibus.5.3.0.ci.1-1.el6.x86_64.rpm
sudo yum install openssh-server
sudo yum install postfix
sudo yum install cronie
sudo service postfix start
sudo chkconfig postfix on
sudo rpm -i gitlab-7.6.2_omnibus.5.3.0.ci.1-1.el6.x86_64.rpm
Configure and start GitLab
sudo gitlab-ctl reconfigure
sudo lokkit -s http -s ssh
Browse to the hostname and login
Username: root
Password: 5iveL!fe
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步骤很简单，主要就是下载速度太慢，好在有个美国的vps，先下载到vps上，然后从vps下载，速度稍好，顺便用百度网盘离线下载了一份。
配置开放用户注册
默认是不允许注册的，如果需要开放注册，可以编辑 /etc/gitlab/gitlab.rb，查找signup_enabled ，值改为true，并取消注释，之后重新配置gitlab。
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sudo gitlab-ctl reconfigure
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遇到的问题
内存不足
512M的虚拟机，打开gitlab页面巨卡，简直无法忍受，查看内存使用情况：
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[root@localhost ~]# free -m
total used free shared buffers cached
Mem: 482 476 6 0 0 13
-/+ buffers/cache: 462 20
Swap: 1023 260 763
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查看gitlab官网的硬件需求。
MEMORY
You need at least 2GB of addressable memory (RAM + swap) to install and use GitLab! With less memory GitLab will give strange errors during the reconfigure run and 500 errors during usage.
- 512MB RAM + 1.5GB of swap is the absolute minimum but we strongly advise against this amount of memory. See the unicorn worker section below for more advise.
- 1GB RAM + 1GB swap supports up to 100 users
- 2GB RAM is the recommended memory size and supports up to 500 users
- 4GB RAM supports up to 2,000 users
- 8GB RAM supports up to 5,000 users
- 16GB RAM supports up to 10,000 users
- 32GB RAM supports up to 20,000 users
- 64GB RAM supports up to 40,000 users
Notice: The 25 workers of Sidekiq will show up as separate processes in your process overview (such as top or htop) but they share the same RAM allocation since Sidekiq is a multithreaded application.
把虚拟机内存调到1G，果然好了，页面打开很流畅。
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[root@localhost gitlab]# free -m
total used free shared buffers cached
Mem: 988 906 82 0 23 114
-/+ buffers/cache: 768 220
Swap: 1023 0 1023
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但是之前手动配置的也是512的虚拟机，打开一样很流畅，看来手动配置还是有意义的