环境准备：
centos 7
gitlab 10
安装依赖包
GitLab 10.x之后添加多了一些依赖，并且要启动sshd服务，所以我们先添加依赖，启动sshd，为防火墙添加服务
sudo yum install -y curl policycoreutils-python openssh-server openssh-clients
sudo systemctl enable sshd
sudo systemctl start sshd
# 防火墙这2步可以不用管
# sudo firewall-cmd –permanent –add-service=http
# sudo systemctl reload firewalld
postfix的产生是为了替代传统的sendmail.相较于sendmail,postfix在速度。性能和稳定性上都更胜一筹。
如今眼下许多的主流邮件服务事实上都在採用postfix. 当我们须要一个轻量级的的邮件server是，postfix不失为一种选择。
- postfix想要作用的范围是广大的Internet用户。试图影响大多数的Internet上的电子邮件系统，因此它是免费的。
- postfix在性能上大约比sendmail快三倍。一部执行postfix的台式PC每天能够收发上百万封邮件。
- postfix是sendmail兼容的，从而使sendmail用户能够非常方便地迁移到postfix。Postfix支持/var[/spool]/mail、/etc/aliases、 NIS、和 ~/.forward 文件。
- postfix被设计成在重负荷之下仍然能够正常工作。当处理的邮件数目增长时，postfix执行的进程不会跟着添加。
- postfix是由超过一打的小程序组成的，每一个程序完毕特定的功能。
gitlab配置需要用到邮件发送，所以先安装postfix
yum -y install postfix
安装完之后，启动postfix
systemctl start postfix
启动过程中如果报错：Job for postfix.service failed because the control process exited with error code. See "systemctl status postfix.service" and "journalctl -xe" for details.
解决办法，vim打开/etc/postfix/main.cf，修改如下两项,修改之前可以先备份下
# 修改 /etc/postfix/main.cf的设置
inet_protocols = ipv4
inet_interfaces = all
修改完成后，再次启动,就不会报错了，设置postfix为开机自启动
systemctl enable postfix
查看启动状态,看到 Active: active (running) 就是已经正常启动了
[root@yoyo ~]# systemctl status postfix
完整的操作如下
[root@yoyo ~]# yum -y install policycoreutils-python openssh-server openssh-clients
[root@yoyo ~]# systemctl enable sshd
[root@yoyo ~]# systemctl start sshd
[root@yoyo ~]# yum -y install postfix
[root@yoyo ~]# systemctl start postfix
Job for postfix.service failed because the control process exited with error code. See "systemctl status postfix.service" and "journalctl -xe" for details.
[root@yoyo ~]# cp /etc/postfix/main.cf /etc/postfix/main.cf.bak
[root@yoyo ~]# vim /etc/postfix/main.cf
# 修改inet_protocols = ipv4 和inet_interfaces = all
[root@yoyo ~]# systemctl start postfix
[root@yoyo ~]# systemctl enable postfix
[root@yoyo ~]# systemctl status postfix
● postfix.service - Postfix Mail Transport Agent
Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2019-01-15 15:37:28 CST; 5min ago
Process: 3171 ExecStart=/usr/sbin/postfix start (code=exited, status=0/SUCCESS)
Process: 3167 ExecStartPre=/usr/libexec/postfix/chroot-update (code=exited, status=0/SUCCESS)
Process: 3164 ExecStartPre=/usr/libexec/postfix/aliasesdb (code=exited, status=0/SUCCESS)
Main PID: 3244 (master)
CGroup: /system.slice/postfix.service
├─3244 /usr/libexec/postfix/master -w
├─3245 pickup -l -t unix -u
└─3246 qmgr -l -t unix -u
Jan 15 15:37:27 yoyo systemd[1]: Starting Postfix Mail Transport Agent...
Jan 15 15:37:28 yoyo postfix/postfix-script[3242]: starting the Postfix mail system
Jan 15 15:37:28 yoyo postfix/master[3244]: daemon started -- version 2.10.1, configuration /etc/postfix
Jan 15 15:37:28 yoyo systemd[1]: Started Postfix Mail Transport Agent.
[root@yoyo ~]#
gitlab安装
centos 7系统的下载地址:https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el7
找个最新版去下载gitlab-ce-11.6.3-ce.0.el7.x86_64.rpm
下载rpm包并安装
[root@yoyo ~]# wget https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el7/gitlab-ce-10.0.0-ce.0.el7.x86_64.rpm
[root@yoyo ~]# mkdir /usr/local/gitlab
[root@yoyo ~]# mv gitlab-ce-10.0.0-ce.0.el7.x86_64.rpm /usr/local/gitlab/
[root@yoyo ~]# cd /usr/local/gitlab/
[root@yoyo gitlab]# rpm -i gitlab-ce-10.0.0-ce.0.el7.x86_64.rpm
warning: gitlab-ce-11.6.3-ce.0.el7.x86_64.rpm: Header V4 RSA/SHA1 Signature, key ID f27eab47: NOKEY
error: Failed dependencies:
policycoreutils-python is needed by gitlab-ce-10.0.0-ce.0.el7.x86_64.rpm
# 如果出现上面这个报错就执行yum install policycoreutils-python
[root@yoyo gitlab]# yum -y install policycoreutils-python
[root@yoyo gitlab]# rpm -i gitlab-ce-11.6.3-ce.0.el7.x86_64.rpm
warning: gitlab-ce-10.0.0-ce.0.el7.x86_64.rpm: Header V4 RSA/SHA1 Signature, key ID f27eab47: NOKEY
It looks like GitLab has not been configured yet; skipping the upgrade script.
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Thank you for installing GitLab!
GitLab was unable to detect a valid hostname for your instance.
Please configure a URL for your GitLab instance by setting `external_url`
configuration in /etc/gitlab/gitlab.rb file.
Then, you can start your GitLab instance by running the following command:
sudo gitlab-ctl reconfigure
For a comprehensive list of configuration options please see the Omnibus GitLab readme
https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md
安装完成之后，会出现gitlab官方文档地址https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/README.md
配置并启动gitlab-ce
gitlab安装完成后，需要设置一个访问地址（或域名），打开/etc/gitlab/gitlab.rb，将默认的external_url = 'http://git.example.com'修改为自己的IP地址:http://xxx.xx.xxx.xx
[root@yoyo conf]# vim /etc/gitlab/gitlab.rb
原来默认的external_url
## GitLab URL
##! URL on which GitLab will be reachable.
##! For more details on configuring external_url see:
##! https://docs.gitlab.com/omnibus/settings/configuration.html#configuring-the-external-url-for-gitlab
external_url 'http://git.example.com'
修改成自己定义的url地址，端口自己设置一个，别和已有的冲突了
## GitLab URL
##! URL on which GitLab will be reachable.
##! For more details on configuring external_url see:
##! https://docs.gitlab.com/omnibus/settings/configuration.html#configuring-the-external-url-for-gitlab
external_url 'http://47.104.x.x:8100'
修改完成后：wq保存退出，执行以下命令，让配置生效
[root@yoyo conf]# gitlab-ctl reconfigure
启动Gitlab
[root@yoyo conf]# gitlab-ctl start
[root@yoyo ~]# gitlab-ctl start
ok: run: gitaly: (pid 6638) 186s
ok: run: gitlab-monitor: (pid 6656) 186s
ok: run: gitlab-workhorse: (pid 6659) 186s
ok: run: logrotate: (pid 6703) 185s
ok: run: nginx: (pid 6709) 185s
ok: run: node-exporter: (pid 6715) 184s
ok: run: postgres-exporter: (pid 6720) 184s
ok: run: postgresql: (pid 7324) 44s
ok: run: prometheus: (pid 6752) 171s
ok: run: redis: (pid 6761) 171s
ok: run: redis-exporter: (pid 6765) 170s
ok: run: sidekiq: (pid 7299) 45s
ok: run: unicorn: (pid 7476) 18s
启动完成后，在浏览器输入http://47.104.x.x:8100,就是gitlab的登录首页了，如果出现502页面，需修改默认的8080端口
502问题
打开gitlab首页出现502问题
出现这个问题，主要是因为8080端口被占用，之前安装tomcat默认的是8080端口,netstat -ntpl查看端口情况
[root@yoyo ~]# netstat -ntpl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:9100 0.0.0.0:* LISTEN 6715/node_exporter
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 801/java
tcp 0 0 0.0.0.0:8060 0.0.0.0:* LISTEN 6709/nginx: master
tcp 0 0 127.0.0.1:9121 0.0.0.0:* LISTEN 6765/redis_exporter
tcp 0 0 127.0.0.1:9090 0.0.0.0:* LISTEN 6752/prometheus
tcp 0 0 127.0.0.1:9187 0.0.0.0:* LISTEN 6720/postgres_expor
tcp 0 0 0.0.0.0:8100 0.0.0.0:* LISTEN 6709/nginx: master
tcp 0 0 127.0.0.1:8101 0.0.0.0:* LISTEN 7495/unicorn master
tcp6 0 0 :::3306 :::* LISTEN 1370/mysqld
杀掉8080端口即可,8080端口对应的pip是801
[root@yoyo ~]# kill -9 801
重启下服务，刷新页面就可以访问了
[root@yoyo ~]# gitlab-ctl restart
为了避免8080端口冲突问题，可以修改下unicorn的默认端口，vim打开/etc/gitlab/gitlab.rb配置文件
新增一项unicorn['port'] = 8101，修改后内容如下
## GitLab URL
##! URL on which GitLab will be reachable.
##! For more details on configuring external_url see:
##! https://docs.gitlab.com/omnibus/settings/configuration.html#configuring-the-external-url-for-gitlab
external_url 'http://47.104.x.x:8100'
unicorn['port'] = 8101
修改完成后：wq保存退出，执行gitlab-ctl reconfigure命令，让配置生效,再重新启动服务
[root@yoyo conf]# gitlab-ctl reconfigure
[root@yoyo conf]# gitlab-ctl stop
[root@yoyo conf]# gitlab-ctl start
接着在浏览器访问就能看的gitlab登录首页了
gitlab配置查看
gitlab的配置主要是etc/gitlab/gitlab.rb下的两个地方
external_url 'http://47.104.x.x:8100'
unicorn['port'] = 8101
查看更多配置信息可以，在/opt/gitlab/embedded/service/gitlab-rails/config/gitlab.yml查看具体的详情
gitlab:
## Web server settings (note: host is the FQDN, do not include http://)
host: 47.104.x.x
port: 8100
https: false
相关操作
启动服务:gitlab-ctl start
查看状态:gitlab-ctl status
停掉服务:gitlab-ctl stop
重启服务:gitlab-ctl restart
让配置生效:gitlab-ctl reconfigure