Jenkins+Gitlab+Ansible自动化部署(一)

首先准备实验环境

虚拟机	主机名	IP地址	服务	系统版本	内核版本
Vmware Workstation 14	gitlab.example.com	192.168.244.130	gitlab	CentOS Linux release 7.5.1804 (Core)	3.10.0-862.el7.x86_64
	jenkins.example.com	192.168.244.131	jenkis
	ansible.example.com	192.168.244.132	asible

除此之外，还要在宿主机win10系统下的C:\Windows\System32\drivers\etc\hosts文件中添加如下内容

192.168.244.130 gitlab.example.com
192.168.244.131 jenkins.example.com
192.168.244.132 ansible.example.com

关闭防火墙和selinux

[root@gitlab ~]# sed -i "s/enforcing/disabled/" /etc/selinux/config
[root@gitlab ~]# systemctl stop firewalld && systemmctl disable firewalld
[root@gitlab ~]# reboot
[root@gitlab ~]# getenforce
Permissive
[root@server01 ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
   Active: inactive (dead)
     Docs: man:firewalld()

安装postfix并启动

[root@gitlab ~]# yum install postfix
[root@gitlab ~]# systemctl start postfix && systemctl enable postfix

安装Gitlab组件及gitlab-ce

[root@gitlab ~]# yum install curl policycoreutils openssh-server openssh-clients
[root@gitlab ~]# curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash
[root@gitlab ~]# yum install -y gitlab-ce 

也可以去https://packages.gitlab.com/gitlab/gitlab-ce/packages/el/7/gitlab-ce-10.0.0-ce.0.el7.x86_64.rpm安装方法。

证书创建与配置加载

[root@gitlab ~]# mkdir -p /etc/gitlab/ssl
创建私有密钥
[root@gitlab ~]# openssl genrsa -out "/etc/gitlab/ssl/gitlab.example.com.key"
Generating RSA private key,  bit long modulus
...............+++
...............................................................................+++
e is  (0x10001)
创建私有证书
[root@gitlab ~]# openssl req -new -key "/etc/gitlab/ssl/gitlab.example.com.key"  -out "/etc/gitlab/ssl/gitlab.example.com.csr"
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name ( letter code) [XX]:cn
State or Province Name (full name) []:sh
Locality Name (eg, city) [Default City]:sh
Organization Name (eg, company) [Default Company Ltd]:  #输入空格，然后回车
Organizational Unit Name (eg, section) []:  #输入空格，然后回车
Common Name (eg, your name or your server's hostname) []:gitlab.example.com
Email Address []:admin@example.com

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:  #直接回车
查看
[root@gitlab ~]# ll /etc/gitlab/ssl/
total
-rw-r--r--  root root  Jan   : gitlab.example.com.csr
-rw-r--r--  root root  Jan   : gitlab.example.com.key
接下来利用私有密钥和私有证书创建CRT签署证书
[root@gitlab ~]# openssl x509 -req -days  -in "/etc/gitlab/ssl/gitlab.example.com.csr" -signkey "/etc/gitlab/ssl/gitlab.example.com.key" -out "/etc/gitlab/ssl/gitlab.example.com.crt"
Signature ok
subject=/C=cn/ST=sh/L=sh/O= /OU= /CN=gitlab.example.com/emailAddress=admin@example.com
Getting Private key
查看
[root@gitlab ~]# ll /etc/gitlab/ssl/
total
-rw-r--r--  root root  Jan   : gitlab.example.com.crt
-rw-r--r--  root root  Jan   : gitlab.example.com.csr
-rw-r--r--  root root  Jan   : gitlab.example.com.key
利用openssl命令输出pem证书
[root@gitlab ~]# openssl dhparam -out /etc/gitlab/ssl/dhparam.pem
Generating DH parameters,  bit long safe prime, generator
This is going to take a long time
........................................................+................................................................................+.....................................+..................................................................................+..............................................+..................................................................................................................................+..+........................................................................................................................................+..............................................................................................................................................................................+......+..............+.....................................................+.................+.......................................................................................+..+.................................................................................................................................................+..........................................................+.............+.........+...........................................................+........................................................................................................................................................................................................................................+...................................................................................................................................................................................................................................................................................................................++*++*
#  这个过程有点久
# 查看生成的证书
[root@gitlab ~]# ll /etc/gitlab/ssl/
total
-rw-r--r--  root root   Jan   : dhparam.pem
-rw-r--r--  root root  Jan   : gitlab.example.com.crt
-rw-r--r--  root root  Jan   : gitlab.example.com.csr
-rw-r--r--  root root  Jan   : gitlab.example.com.key
更改文件权限
[root@gitlab ~]# chmod  /etc/gitlab/ssl/*
[root@gitlab ~]# ll /etc/gitlab/ssl/
total
-rw-------  root root   Jan   : dhparam.pem
-rw-------  root root  Jan   : gitlab.example.com.crt
-rw-------  root root  Jan   : gitlab.example.com.csr
-rw-------  root root  Jan   : gitlab.example.com.key

配置gitlab

[root@gitlab ~]# cp /etc/gitlab/gitlab.rb{,.bak}
[root@gitlab ~]# vim /etc/gitlab/gitlab.rb
## 更改如下
  external_url 'https://gitlab.example.com'  13行左右
 nginx['redirect_http_to_https'] = true
 nginx['ssl_certificate'] = "/etc/gitlab/ssl/gitlab.example.com.crt"
 nginx['ssl_certificate_key'] = "/etc/gitlab/ssl/gitlab.example.com.key"
 # nginx['ssl_dhparam'] = /etc/gitlab/ssl/dhparam.pem # Path to dhparams.pem,      eg. /etc/gitlab/ssl/dhparams.pem

初始化gitlab相关服务配置

[root@gitlab ~]# gitlab-ctl reconfigure
Starting Chef Client, version 13.6.
resolving cookbooks for run list: ["gitlab"]
Synchronizing Cookbooks:
  - gitlab (0.0.)
  - package (0.1.)
  - postgresql (0.1.)
  - redis (0.1.)
  - mattermost (0.1.)
  - registry (0.1.)
  - gitaly (0.1.)
  - consul (0.0.)
  - nginx (0.1.)
  - runit (0.14.)
  - letsencrypt (0.1.)
  - acme (3.1.)
  - crond (0.1.)
  - compat_resource (12.19.)
Installing Cookbook Gems:
Compiling Cookbooks...
Recipe: gitlab::default
  * directory[/etc/gitlab] action create
    - change mode from '' to ''
  Converging  resources
  * directory[/etc/gitlab] action create (up to date)
  * directory[Create /var/opt/gitlab] action create
    - create new directory /var/opt/gitlab
    - change mode from '' to ''
    - change owner from '' to 'root'
    - change group from '' to 'root'
  * directory[/opt/gitlab/embedded/etc] action create
    - create new directory /opt/gitlab/embedded/etc
    - change mode from '' to ''
    - change owner from '' to 'root'
    - change group from '' to 'root'
  * template[/opt/gitlab/embedded/etc/gitconfig] action create
    - create new file /opt/gitlab/embedded/etc/gitconfig
    - update content in file /opt/gitlab/embedded/etc/gitconfig from none to 987af3

。。。。过程有点长，需要等一会（看个人服务器配置了）
Running handlers:
Running handlers complete
Chef Client finished, / resources updated in  minutes  seconds
gitlab Reconfigured!
# 出现这个表示配置没有问题！

对nginx配置

[root@gitlab ~]# cp /var/opt/gitlab/nginx/conf/gitlab-http.conf{,.bak}
[root@gitlab ~]# vim /var/opt/gitlab/nginx/conf/gitlab-http.conf
    server_name gitlab.example.com; #在此行下面添加38行的内容
    rewrite ^(.*)$ https://$host$1 permanent;

重启gitlab

[root@gitlab ~]# gitlab-ctl restart
ok: run: alertmanager: (pid ) 1s
ok: run: gitaly: (pid ) 0s
ok: run: gitlab-monitor: (pid ) 0s
ok: run: gitlab-workhorse: (pid ) 1s
ok: run: logrotate: (pid ) 0s
ok: run: nginx: (pid ) 1s
ok: run: node-exporter: (pid ) 0s
ok: run: postgres-exporter: (pid ) 1s
ok: run: postgresql: (pid ) 0s
ok: run: prometheus: (pid ) 0s
ok: run: redis: (pid ) 0s
ok: run: redis-exporter: (pid ) 0s
ok: run: sidekiq: (pid ) 0s
ok: run: unicorn: (pid ) 0s
#  可以看出gitlab的所有服务重启完成

使用宿主机win10下的chrome浏览器访问gitlab.example.com:80

开始使用gitlab

创建一个测试工程

复制仓库地址

回到win10宿主机，重新打开一个git命令行窗口如下所示操作

# 粘贴仓库地址回车后会弹出输入账户和密码的窗口

之后就会将空的测试仓库克隆到本地宿主机的桌面上的repo目录下

xueji@xueji MINGW64 ~/Desktop/repo
$ git -c http.sslVerify=false clone https://gitlab.example.com/root/test-repo.git
Cloning into 'test-repo'...
warning: You appear to have cloned an empty repository.

xueji@xueji MINGW64 ~/Desktop/repo
$ pwd
/c/Users/xueji/Desktop/repo

xueji@xueji MINGW64 ~/Desktop/repo
$ ls
test-repo/

xueji@xueji MINGW64 ~/Desktop/repo
$ ls test-repo/

在win10宿主机下的test-repo目录下新建一个test.py文件，并上传至gitlab

xueji@xueji MINGW64 ~/Desktop/repo
$ cd test-repo/

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ vi test.py

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git add .
warning: LF will be replaced by CRLF in test.py.
The file will have its original line endings in your working directory

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git commit -m"First Commit"
[master (root-commit) 93bd740] First Commit
 Committer: unknown <xueji@pin.com>
Your name and email address were configured automatically based
on your username and hostname. Please check that they are accurate.
You can suppress this message by setting them explicitly. Run the
following command and follow the instructions in your editor to edit
your configuration file:

    git config --global --edit

After doing this, you may fix the identity used for this commit with:

    git commit --amend --reset-author

  file changed,  insertion(+)
 create mode  test.py

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git config  --global user.email "admin@example.com"

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git config --global user.name "admin"

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git commit -m"First Commit"
On branch master
Your branch is based on 'origin/master', but the upstream is gone.
  (use "git branch --unset-upstream" to fixup)

nothing to commit, working tree clean

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git -c http.sslVerify=false push master
fatal: 'master' does not appear to be a git repository
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)

报错，跟据提示信息我们进行如下操作

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git branch --unset-upstream
xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git add .

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git config --global user.email "admin@example.com"

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git config --global user.name "admin"

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git commit -m"First Commit"
On branch master
nothing to commit, working tree clean

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git commit -m"Second Commit"
On branch master
nothing to commit, working tree clean

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git -c http.sslVerify=false push origin master
Enumerating objects: , done.
Counting objects: % (/), done.
Writing objects: % (/),  bytes | 242.00 KiB/s, done.
Total  (delta ), reused  (delta )
To https://gitlab.example.com/root/test-repo.git
 * [new branch]      master -> master

回到gitlab的浏览器页面，刷新查看

已经成功上传到test-repo工程当中。

Gitlab应用

比如说Systeminfo

比如说日志

需要我们关注的是application.log和production.log两项

比如说健康状况

创建开发人员及leader的账号

开发人员账号

其他选项不要动，点击创建即可。

创建leader的账号

其他也不要动。

建好后的账户

同理添加lead账户

更改两个账户的密码

其他选项保持不变，然后点击页面最下面的save changes，同理更改lead的密码

使用dev账户进行git命令行的提交操作

## 以下步骤也是在win10宿主机上进行的
xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ pwd
/c/Users/xueji/Desktop/repo/test-repo

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ cd ..

xueji@xueji MINGW64 ~/Desktop/repo
$ rm -rf test-repo/
$ git -c http.sslVerify=false clone https://gitlab.example.com/root/test-repo.git
Cloning into 'test-repo'...
remote: Enumerating objects: , done.
remote: Counting objects: % (/), done.
remote: Total  (delta ), reused  (delta )
Unpacking objects: % (/), done.
#  这一步就很尴尬了，本来是想要验证dev账户的，谁知道什么都不需要输入就直接可以clone下来。
xueji@xueji MINGW64 ~/Desktop/repo
$ ls
test-repo/

xueji@xueji MINGW64 ~/Desktop/repo
$ ls test-repo/
test.py

xueji@xueji MINGW64 ~/Desktop/repo
$ cd test-repo/

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (master)
$ git checkout -b release-1.0   #创建开发人员版本
Switched to a new branch 'release-1.0'
xueji@xueji MINGW64 ~/Desktop/repo/test-repo (release-1.0)
$ ls
test.py

xueji@xueji MINGW64 ~/Desktop/repo/test-repo (release-1.0)
$ vim test.py
xueji@xueji MINGW64 ~/Desktop/repo/test-repo (release-1.0)
$ cat test.py
print("This is a test python file for release-1.0!")
xueji@xueji MINGW64 ~/Desktop/repo/test-repo (release-1.0)
$ git -c http.sslVerify=false push origin release-1.0
Enumerating objects: , done.
Counting objects: % (/), done.
Delta compression using up to  threads
Compressing objects: % (/), done.
Writing objects: % (/),  bytes | 287.00 KiB/s, done.
Total  (delta ), reused  (delta )
remote:
remote: To create a merge request for release-1.0, visit:
remote:   https://gitlab.example.com/root/test-repo/merge_requests/new?merge_request%5Bsource_branch%5D=release-1.0
remote:
To https://gitlab.example.com/root/test-repo.git
 * [new branch]      release-1.0 -> release-1.0
#  我靠，估计版本不一样，这一步不需要输入账户名和密码

返回gitlab的浏览器页面

使用开发账户登录

设置新密码

至此，gitlab安装配置完成，接下来演示gitlab应用：

开发人员创建一个分支，然后发申请到主管请求合并到主分支，

回到gitbash命令行，首先删除之前的test-repo目录：

然后使用dev账号登陆gitlab，并复制gitlab仓库地址：

本地提交并推送到gitlab远端：

开始提交合并到主分支的申请

接着退出当前的dev账号，使用lead账号登录，同样lead账号首次登录需要更改密码，步骤同dev一样：

jenkins的配置与使用见Jenkins+Gitlab+Ansible自动化部署(二)。