GItlab 安装

GItlab 安装Gitlablinux安装

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1、安装相关U依赖

$ yum -y install policycoreutils openssh-clients postfix

2、启动ssh服务&设置为开机启动

$ systemctl enable sshd & sudo systemctl start sshd

3、设置postfix开机自启,并启动,postfix支持gitlab发信功能

$ systemctl enable postfix && systemctl start postfix

4、开放ssh 以及http服务,然后重新加载防火墙列表

$ firewall-cmd --add-service=ssh --permanent
$ firewall-cmd --add-service=http --permanent
$ firewall-cmd --reload

5、下载gitlab 包,并且安装

安装

$ wget https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el6/gitlab-ce-12.4.2-ce.0.el6.x86_64.rpm 
 wget https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el6/gitlab-ce-13.6.7-ce.0.el6.x86_64.rpm

$ rpm -i gitlab-ce-12.4.2-ce.0.el6.x86_64.rpm 

6、修改gitlab 配置

vi /etc/gitlab/gitlab.rb

修改 gitlab 访问地址和端口,默认为80,我们改为82

external_url'http://192.168.66.100:82'
nginx['listen_port']=82 #这行是注释掉了,直接打开即可

7、重载配置及启动gitlab

gitlab-ctl reconfigure
gitlab-ctl restart
gitlab-ctl start # 启动所有 gitlab 组件;
gitlab-ctl stop # 停止所有 gitlab 组件;
gitlab-ctl restart # 重启所有 gitlab 组件;
gitlab-ctl status # 查看服务状态;
gitlab-ctl reconfigure # 启动服务;
vim /etc/gitlab/gitlab.rb # 修改默认的配置文件;
gitlab-rake gitlab:check SANITIZE=true --trace # 检查gitlab;
gitlab-ctl tail # 查看日志;

此时有可能报错

报错:There was an error running gitlab-ctl reconfigure:
ruby_block[authorize Grafana with Gitlab] (monitoring::grafana line 92) had an error: NoMethodError: undefined method ‘zero?’ for nil:NilClass

解决办法

分配2G空间

sudo dd if=/dev/zero of=/root/swapfile bs=1M count=1500;

制作文件并生效

sudo mkswap /root/swapfile
sudo swapon /root/swapfile

设置开机启动
sudo vim /etc/fstab 在最后一行加进去

/root/swapfile swap swap defaults 0 0

最后free -m查看是否生效
生效后重新执行gitlab-ctl reconfigure 即可

8、把端口添加到防火墙

firewall-cmd --zone=public --add-port=82/tcp --permanent
firewall-cmd --reload

启动成功后,访问: xxxx:82 看到一下修改管理员root密码的页面,修改密码后,然后登录即可

Gitlab 安装问题

1、Gitlab访问出现403″Forbidden”现象

问题原因分析:

可能因较多的并发导致的访问被拒绝, Gitlab使用rack_attack做了并发访问的限制!

解决办法:

打开/etc/gitlab/gitlab.rb文件,查找 gitlab_rails[‘rack_attack_git_basic_auth’] 关键词,取消注释,

修改ip_whitelist白名单属性,加入Gitlab部署的IP地址。

[root@gitlab ~]# vim /etc/gitlab/gitlab.rb
......
 gitlab_rails['rack_attack_git_basic_auth'] = {
   'enabled' => true,
   'ip_whitelist' => ["127.0.0.1","172.16.60.222"],   //把gitlab服务器IP地址添加
   'maxretry' => 10,
   'findtime' => 60,
   'bantime' => 3600
 }  

然后进行重新配置

[root@gitlab ~]``# gitlab-ctl reconfigure

2、Gitlab访问出现502的现象

Gitlab访问出现:Whoops, GitLab is taking too much time to respond.

问题原因分析:

1)unicorn原8080默认端口被容器中别的进程已经占用,必须调整为没用过的
2)gitlab的timeout设置过小,默认为60

解决办法:

1)关闭gitlab服务

[root@gitlab ~]``# gitlab-ctl stop

2)选择一个没有被系统占用的端口作为unicorn端口,比如8877端口(lsof -i:8877 确认此端口没有被占用)

[root@gitlab ~]# vim /etc/gitlab/gitlab.rb
unicorn['port'] = 8877
gitlab_workhorse['auth_backend'] = "http://localhost:8877"

3)重新生成配置,并进行重启。

[root@gitlab ~]# gitlab-ctl reconfigure
[root@gitlab ~]# gitlab-ctl restart

3、Gitlab启动失败,或重新安装时出现卡的状态

问题现象:在卸载gitlab然后再次安装执行sudo gitlab-ctl reconfigure的时候往往会出现:ruby_block[supervise_redis_sleep] action run,会一直卡无法往下进行!

解决办法:

1)按ctrl + c 强制结束
2)执行”systemctl restart gitlab-runsvdir” 命令
3)接着再执行”gitlab-ctl reconfigure”

如果Gitlab服务器重启后,启动”gitlab-ctl start”失败,解决办法相同。

[root@gitlab ~]# systemctl restart gitlab-runsvdir
[root@gitlab ~]# gitlab-ctl reconfigure
[root@gitlab ~]# gitlab-ctl start

4、Gitlab异常关机,导致gitlab启动失败!gitlab-runsvdir方式启动没反应(僵尸状态)

问题现象:Gitlab部署的服务器异常断电,机器重启后,尝试启动gitlab服务,启动失败!通过gitlab-runsvdir方式启动一直没有反应!一直在卡顿状态!日志也没有任务输入!

执行下面的启动命令报错:
[root@gitlab ~]# gitlab-ctl start      // 或者 "gitlab-ctl restart"
fail: alertmanager: runsv not running
fail: gitaly: runsv not running
fail: gitlab-monitor: runsv not running
fail: gitlab-workhorse: runsv not running
fail: logrotate: runsv not running
fail: nginx: runsv not running
fail: node-exporter: runsv not running
fail: postgres-exporter: runsv not running
fail: postgresql: runsv not running
fail: prometheus: runsv not running

那么尝试通过supervisor进程方式启动gitlab,发现一直在卡顿中,根本没有任何反应!

[root@gitlab ~]# systemctl restart gitlab-runsvdir

查看日志,发现也没有任务启动信息打印到日志中 (日志都是之前的)

[root@gitlab ~]``# /usr/bin/gitlab-ctl tail

gitlab-runsvdir启动在卡顿中,gitlab服务也没有起来

root@gitlab ~]# cat /etc/systemd/system/multi-user.target.wants/gitlab-runsvdir.service
[Unit]
Description=GitLab Runit supervision process
After=multi-user.target
  
[Service]
ExecStart=/opt/gitlab/embedded/bin/runsvdir-start           #最后通过这条命令启动了Gitlab
Restart=always
  
[Install]
WantedBy=multi-user.target
  
执行下面的启动,虽然发现这个也会一直在卡顿中,但是不影响gitlab服务启动。
[root@gitlab ~]# /opt/gitlab/embedded/bin/runsvdir-start
  
重新打开一个终端窗口,发现gitlab已经有新的日志信息打入了,gitlab也服务已经起来了
[root@gitlab ~]# /usr/bin/gitlab-ctl tail
[root@gitlab ~]# ps -ef|grep gitlab
  
这时候关闭上面执行"/opt/gitlab/embedded/bin/runsvdir-start"的卡顿的终端窗口,发现gitlab也还是启动状态(ps -ef|grep gitlab)
[root@gitlab ~]# ps -ef|grep gitlab
[root@gitlab ~]# lsof -i:80
[root@gitlab ~]# gitlab-ctl status
run: alertmanager: (pid 29804) 1640s; run: log: (pid 29789) 1640s
run: gitaly: (pid 29795) 1640s; run: log: (pid 29781) 1640s
run: gitlab-monitor: (pid 29799) 1640s; run: log: (pid 29785) 1640s
run: gitlab-workhorse: (pid 29794) 1640s; run: log: (pid 29780) 1640s
run: logrotate: (pid 29798) 1640s; run: log: (pid 29783) 1640s
run: nginx: (pid 29800) 1640s; run: log: (pid 29786) 1640s
run: node-exporter: (pid 29802) 1640s; run: log: (pid 29788) 1640s
run: postgres-exporter: (pid 29805) 1640s; run: log: (pid 29790) 1640s
run: postgresql: (pid 29796) 1640s; run: log: (pid 29782) 1640s
run: prometheus: (pid 29797) 1640s; run: log: (pid 29784) 1640s
run: redis: (pid 29818) 1640s; run: log: (pid 29793) 1640s
run: redis-exporter: (pid 29817) 1640s; run: log: (pid 29792) 1640s
run: sidekiq: (pid 29801) 1640s; run: log: (pid 29787) 1640s
run: unicorn: (pid 29807) 1640s; run: log: (pid 29791) 1640s
  
查看日志也有新信息写入,一切正常了!
[root@gitlab ~]# /usr/bin/gitlab-ctl tail  

5、Gitlab重新安装,在执行”gitlab-ctl reconfigure”配置环节出现了下面报错:

[root@gitlab ~]# gitlab-ctl reconfigure
.........
.........
STDERR: sysctl: cannot open "/etc/sysctl.d/90-omnibus-gitlab-kernel.sem.conf": No such file or directory
sysctl: cannot open "/etc/sysctl.d/90-omnibus-gitlab-net.core.somaxconn.conf": No such file or directory
---- End output of sysctl -e --system ----
Ran sysctl -e --system returned 255

问题原因分析:
丢失了报错中的这两个配置文件,进入/etc/sysctl.d目录发现,这两个文件都是通过链接到/opt/gitlab/embedded/etc/目录下。
然而/opt/gitlab/embedded/etc/确实没有这两个文件。

[root@gitlab ~]# ll /etc/sysctl.d/
total 0
lrwxrwxrwx  1 root root 58 Nov 10 22:23 90-omnibus-gitlab-kernel.sem.conf -> /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.sem.conf
lrwxrwxrwx  1 root root 61 Nov 10 22:23 90-omnibus-gitlab-kernel.shmall.conf -> /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmall.conf
lrwxrwxrwx  1 root root 61 Nov 10 22:23 90-omnibus-gitlab-kernel.shmmax.conf -> /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmmax.conf
lrwxrwxrwx  1 root root 66 Nov 10 22:25 90-omnibus-gitlab-net.core.somaxconn.conf -> /opt/gitlab/embedded/etc/90-omnibus-gitlab-net.core.somaxconn.conf
lrwxrwxrwx. 1 root root 14 Oct 30 09:13 99-sysctl.conf -> ../sysctl.conf
  
[root@gitlab ~]# ll /opt/gitlab/embedded/etc
total 12
-rw-r--r-- 1 root root  24 Apr 12 23:18 90-omnibus-gitlab-kernel.shmall.conf
-rw-r--r-- 1 root root  28 Apr 12 23:17 90-omnibus-gitlab-kernel.shmmax.conf
-rwxr-xr-x 1 root root 196 Apr 12 23:16 gitconfig
  
[root@gitlab ~]# ll /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.sem.conf
ls: cannot access /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.sem.conf: No such file or directory
[root@gitlab ~]# ll /opt/gitlab/embedded/etc/90-omnibus-gitlab-net.core.somaxconn.conf
ls: cannot access /opt/gitlab/embedded/etc/90-omnibus-gitlab-net.core.somaxconn.conf: No such file or directory
  
解决方法一:
从别的备份机(或者在别的机器上重新安装一次,"gitlab-ctl reconfigure"之后生成这两个文件)将这两个文件拷贝回来!
  
解决方法二:
[root@gitlab ~]# vim /etc/gitlab/gitlab.rb
# unicorn['port'] = 8080
修改为:
unicorn['port'] = 8090
  
之后重新加载配置文件
[root@gitlab ~]# gitlab-ctl reconfigure
  
再次会报错,然后再修改/etc/gitlab/gitlab.rb,修改为原来的配置
[root@gitlab ~]# vim /etc/gitlab/gitlab.rb
# unicorn['port'] = 8080
  
再次重新加载配置文件就OK了!
[root@gitlab ~]# gitlab-ctl reconfigure
  
再次查看,发现上面配置中报错的两个文件已经存在了
[root@gitlab ~]# ll /opt/gitlab/embedded/etc/
total 20
-rw-r--r-- 1 root root  30 Apr 12 23:33 90-omnibus-gitlab-kernel.sem.conf
-rw-r--r-- 1 root root  24 Apr 12 23:18 90-omnibus-gitlab-kernel.shmall.conf
-rw-r--r-- 1 root root  28 Apr 12 23:17 90-omnibus-gitlab-kernel.shmmax.conf
-rw-r--r-- 1 root root  26 Apr 12 23:35 90-omnibus-gitlab-net.core.somaxconn.conf
-rwxr-xr-x 1 root root 196 Apr 12 23:16 gitconfig
[root@gitlab ~]# ll /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.sem.conf
-rw-r--r-- 1 root root 30 Apr 12 23:33 /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.sem.conf
[root@gitlab ~]# ll /opt/gitlab/embedded/etc/90-omnibus-gitlab-net.core.somaxconn.conf
-rw-r--r-- 1 root root 26 Apr 12 23:35 /opt/gitlab/embedded/etc/90-omnibus-gitlab-net.core.somaxconn.conf
  
最后再启动gitlab
[root@gitlab ~]# gitlab-ctl start

6、Gitlab更改默认Nginx

更换gitlab自带Nginx,使用自行编译Nginx来管理gitlab服务。

自行编译的nginx服务和gitlab在同一台机器上
1)编辑gitlab配置文件禁用自带Nignx服务器
[root@gitlab ~]# vim /etc/gitlab/gitlab.rb
...
#设置nginx为false,关闭自带Nginx
nginx['enable'] = false
...
  
2)检查默认nginx配置文件,并迁移至新Nginx服务 (即将下面两个gitlab自带nginx的配置文件迁移到自行编译的新的nginx配置中)
/var/opt/gitlab/nginx/conf/nginx.conf                #nginx配置文件,包含gitlab-http.conf文件
/var/opt/gitlab/nginx/conf/gitlab-http.conf          #gitlab核心nginx配置文件
  
[root@gitlab ~]# cp /var/opt/gitlab/nginx/conf/nginx.conf /etc/nginx/conf.d/
[root@gitlab ~]# cp /var/opt/gitlab/nginx/conf/gitlab-http.conf /etc/nginx/conf.d/
  
3)重启gitlab服务
[root@gitlab ~]# gitlab-ctl reconfigure 
[root@gitlab ~]# gitlab-ctl restart
  
重启自行编译的nginx服务
[root@gitlab ~]# service nginx restart
  
如果访问报502。原因是nginx用户无法访问gitlab用户的socket文件。
重启gitlab需要重新授权
[root@gitlab ~]# chmod -R o+x /var/opt/gitlab/gitlab-rails  

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