# PolarDBX部署文档

**Repository Path**: mrssai/polardbx-deployment-document

## Basic Information

- **Project Name**: PolarDBX部署文档
- **Description**: 阿里云PolarDB-X使用pdx部署分布式数据库
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-12-02
- **Last Updated**: 2024-12-02

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# PolarDBX部署文档

### 介绍
阿里云PolarDB-X使用pdx部署分布式数据库，所有机器(ops、部署机器)均需要联网

### 安装教程

**必要条件**

[] Centos8

[ ] Python3

[ ] ansible

[ ] 机器可联网

#### 安装Centos8
安装过程中 install source填写：mirrors.huaweicloud.com/centos/8-stream/BaseOS/x86_64/os/
#### OPS机器上
ops机器上安装Python3
使用pip3 安装ansible

##### 配置服务器列表
```
vi $HOME/all.ini
```

```
[all]
192.168.3.101  # ops

[cn]
192.168.3.190
192.168.3.192
192.168.3.193

[dn]
192.168.3.194
192.168.3.195
192.168.3.196
```
为简便使用，推荐把配置文件路径放入环境变量：
```
export ini_file=$HOME/all.ini
```
##### 服务器免密
打通所有机器免密登录
```
# 生成 ssh 密钥
ssh-keygen -q -t rsa -N '' -f ~/.ssh/id_rsa <<<y

# 自动添加 known_hosts
echo "StrictHostKeyChecking no" >> /etc/ssh/ssh_config

# 打通 ssh 免密, ini_file 指定上述服务器列表
ansible -i ${ini_file} all -m authorized_key -a " user=root key=\"{{ lookup('file', '/root/.ssh/id_rsa.pub') }} \"  " -u root --become-method=sudo --ask-become-pass --become -k
```

##### 更新yum源
```
ansible -i ${ini_file} all -m shell -a " mv /etc/yum.repos.d /etc/yum.repos.d.bak "

ansible -i ${ini_file} all -m copy -a " src=$HOME/yum.repos.d dest=/etc "

ansible -i ${ini_file} all -m shell -a " yum clean all && yum makecache "
```

##### 安装docker
```
ansible -i ${ini_file} all -m shell -a " yum remove docker \
                  docker-common \                  docker-selinux \            docker-engine "

ansible -i ${ini_file} all -m shell -a "yum install -y yum-utils device-mapper-persistent-data lvm2"

ansible -i ${ini_file} all -m shell -a "yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo"

ansible -i ${ini_file} all -m shell -a "yum install -y docker-ce"
```
             
##### 允许docker远程登录
```
ansible -i ${ini_file} all -m copy -a "src=$HOME/docker dest=/etc/default/docker"

ansible -i ${ini_file} all -m shell -a "systemctl daemon-reload && systemctl restart docker"
```
##### 关闭防火墙
```
ansible -i ${ini_file} all -m shell -a " systemctl disable firewalld "

ansible -i ${ini_file} all -m shell -a " systemctl stop firewalld "
```
##### 创建数据目录
```
ansible -i ${ini_file} all -m shell -a "mkdir -p \$HOME/.pxd/data "
```
##### 启动
```
pxd create -f polarx_pxd.yaml  -repo="polardbx-opensource-registry.cn-beijing.cr.aliyuncs.com/polardbx/"
```

### 使用说明
启动成功后，会在终端输出数据库连接方式，请牢记。使用MySQL-Client等连接工具即可登录数据库。