# Gitlab 安装

> 环境：
>
> OS: CentOS7

<!-- TOC depthFrom:2 depthTo:3 -->

- [安装 gitlab](#安装-gitlab)
    - [常规安装 gitlab](#常规安装-gitlab)
    - [Docker 安装 gitlab](#docker-安装-gitlab)
- [安装 gitlab-ci-multi-runner](#安装-gitlab-ci-multi-runner)
    - [常规安装 gitlab-ci-multi-runner](#常规安装-gitlab-ci-multi-runner)
    - [Docker 安装 gitlab-ci-multi-runner](#docker-安装-gitlab-ci-multi-runner)
- [自签名证书](#自签名证书)
    - [创建证书](#创建证书)
- [gitlab 配置](#gitlab-配置)
- [更多内容](#更多内容)

<!-- /TOC -->

## 安装 gitlab

### 常规安装 gitlab

进入官方下载地址：https://about.gitlab.com/install/ ，如下图，选择合适的版本。

<br><div align="center"><img src="https://raw.githubusercontent.com/dunwu/images/master/snap/20190129155838.png"/></div><br>

以 CentOS7 为例：

#### 安装和配置必要依赖

在系统防火墙中启用 HTTP 和 SSH

```
sudo yum install -y curl policycoreutils-python openssh-server
sudo systemctl enable sshd
sudo systemctl start sshd
sudo firewall-cmd --permanent --add-service=http
sudo systemctl reload firewalld
```

安装 Postfix ，使得 Gitlab 可以发送通知邮件

```
sudo yum install postfix
sudo systemctl enable postfix
sudo systemctl start postfix
```

#### 添加 Gitlab yum 仓库并安装包

添加 Gitlab yum 仓库

```
curl https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash
```

通过 yum 安装 gitlab-ce

```
sudo EXTERNAL_URL="http://gitlab.example.com" yum install -y gitlab-ce
```

安装完成后，即可通过默认的 root 账户进行登录。更多细节可以参考：[documentation for detailed instructions on installing and configuration](https://docs.gitlab.com/omnibus/README.html#installation-and-configuration-using-omnibus-package)

### Docker 安装 gitlab

拉取镜像

```
docker pull docker.io/gitlab/gitlab-ce
```

启动

```
docker run -d \
    --hostname gitlab.zp.io \
    --publish 8443:443 --publish 80:80 --publish 2222:22 \
    --name gitlab \
    --restart always \
    --volume $GITLAB_HOME/config:/etc/gitlab \
    --volume $GITLAB_HOME/logs:/var/log/gitlab \
    --volume $GITLAB_HOME/data:/var/opt/gitlab \
    gitlab/gitlab-ce
```

<br><div align="center"><img src="https://raw.githubusercontent.com/dunwu/images/master/snap/20190131150515.png"/></div><br>

## 安装 gitlab-ci-multi-runner

> 参考：https://docs.gitlab.com/runner/install/

### 常规安装 gitlab-ci-multi-runner

#### 下载

```
sudo wget -O /usr/local/bin/gitlab-runner https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-linux-amd64
```

#### 配置执行权限

```
sudo chmod +x /usr/local/bin/gitlab-runner
```

#### 如果想使用 Docker，安装 Docker（可选的）

```
curl -sSL https://get.docker.com/ | sh
```

#### 创建 CI 用户

```
sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash
```

#### 安装并启动服务

```
sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner
sudo gitlab-runner start
```

#### 注册 Runner

（1）执行命令：

```
sudo gitlab-runner register
```

（2）输入 Gitlab URL 和 令牌

URL 和令牌信息在 Gitlab 的 Runner 管理页面获取：

<br><div align="center"><img src="https://raw.githubusercontent.com/dunwu/images/master/snap/20190129163100.png"/></div><br>

```
Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com )
https://gitlab.com

Please enter the gitlab-ci token for this runner
xxx
```

（3）输入 Runner 的描述

```
 Please enter the gitlab-ci description for this runner
 [hostame] my-runner
```

（4）输入 Runner 相关的标签

```
 Please enter the gitlab-ci tags for this runner (comma separated):
 my-tag,another-tag
```

（5）输入 Runner 执行器

```
 Please enter the executor: ssh, docker+machine, docker-ssh+machine, kubernetes, docker, parallels, virtualbox, docker-ssh, shell:
 docker
```

如果想选择 Docker 作为执行器，你需要指定默认镜像（ `.gitlab-ci.yml` 中没有此配置）

```
 Please enter the Docker image (eg. ruby:2.1):
 alpine:latest
```

### Docker 安装 gitlab-ci-multi-runner

拉取镜像

```
docker pull docker.io/gitlab/gitlab-runner
```

启动

```
docker run -d --name gitlab-runner --restart always \
   -v /srv/gitlab-runner/config:/etc/gitlab-runner \
   -v /var/run/docker.sock:/var/run/docker.sock \
   gitlab/gitlab-runner:latest
```

## 自签名证书

首先，创建认证目录

```
sudo mkdir -p /etc/gitlab/ssl
sudo chmod 700 /etc/gitlab/ssl
```

### 创建证书

#### 创建 Private Key

```
sudo openssl genrsa -des3 -out /etc/gitlab/ssl/gitlab.domain.com.key 2048
```

会提示输入密码，请记住

#### 生成 Certificate Request

```
sudo openssl req -new -key /etc/gitlab/ssl/gitlab.domain.com.key -out /etc/gitlab/ssl/gitlab.domain.com.csr
```

根据提示，输入信息

```
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:JS
Locality Name (eg, city) [Default City]:NJ
Organization Name (eg, company) [Default Company Ltd]:xxxxx
Organizational Unit Name (eg, section) []:
Common Name (eg, your name or your server's hostname) []:gitlab.xxxx.io
Email Address []:

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
```

#### 移除 Private Key 中的密码短语

```
sudo cp -v /etc/gitlab/ssl/gitlab.domain.com.{key,original}
sudo openssl rsa -in /etc/gitlab/ssl/gitlab.domain.com.original -out /etc/gitlab/ssl/gitlab.domain.com.key
sudo rm -v /etc/gitlab/ssl/gitlab.domain.com.original
```

#### 创建证书

```
sudo openssl x509 -req -days 1460 -in /etc/gitlab/ssl/gitlab.domain.com.csr -signkey /etc/gitlab/ssl/gitlab.domain.com.key -out /etc/gitlab/ssl/gitlab.domain.com.crt
```

#### 移除证书请求文件

```
sudo rm -v /etc/gitlab/ssl/gitlab.domain.com.csr
```

#### 设置文件权限

```
sudo chmod 600 /etc/gitlab/ssl/gitlab.domain.com.*
```

## gitlab 配置

```
sudo vim /etc/gitlab/gitlab.rb
external_url 'https://gitlab.domain.com'
```

#### gitlab 网站 https：

```
nginx['redirect_http_to_https'] = true
```

#### gitlab ci 网站 https：

```
ci_nginx['redirect_http_to_https'] = true
```

#### 复制证书到 gitlab 目录：

```
sudo cp /etc/gitlab/ssl/gitlab.domain.com.crt /etc/gitlab/trusted-certs/
```

#### gitlab 重新配置+更新：

```
sudo gitlab-ctl reconfigure
sudo gitlab-ctl restart
```

## 更多内容

- **引申**
  - [操作系统、运维部署总结系列](https://github.com/dunwu/OS)