技术分享 | orchetrator--安装一个高可用 orchestrator

作者：姚嵩

地球人，爱好音乐，动漫，电影，游戏，人文，美食，旅游，还有其他。虽然都很菜，但毕竟是爱好。

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参考：

https://github.com/openark/orchestrator/blob/master/docs/install.md

https://github.com/openark/orchestrator/blob/master/docs/raft-vs-sync-repl.md

https://github.com/github/orchestrator/blob/master/docs/configuration-raft.md

https://github.com/openark/orchestrator/blob/master/docs/high-availability.md

版本：

https://github.com/openark/orchestrator/releases

环境说明：

orchestrator主机环境

10.186.65.5

10.186.65.11

10.186.65.26

orchestrator 后端数据库链接(MySQL 数据库)

10.186.65.29:3307

安装步骤：

# 下载指定版本orchestrator(此处以3.2.6为例)

yum -y install wget jq

dir_software="/opt/software/"

mkdir -p ${dir_software}

cd ${dir_software}

wget -c https://github.com/openark/orchestrator/releases/download/v3.2.6/orchestrator-3.2.6-linux-amd64.tar.gz

# 安装

dir_software="/opt/software/"

cd /

tar -zxvf /${dir_software}/orchestrator-3.2.6-linux-amd64.tar.gz

# (后端数据库)设置后端数据库账号

-- 创建orchestrator的元数据存储schema

CREATE DATABASE IF NOT EXISTS orchestrator;

-- 创建数据库账号，以便orchestrator连接后端数据库

CREATE USER 'orchestrator'@'10.186.65.5' IDENTIFIED BY 'Orch@123';

GRANT ALL PRIVILEGES ON orchestrator.* TO 'orchestrator'@'10.186.65.5';

CREATE USER 'orchestrator'@'10.186.65.11' IDENTIFIED BY 'Orch@123';

GRANT ALL PRIVILEGES ON orchestrator.* TO 'orchestrator'@'10.186.65.11';

CREATE USER 'orchestrator'@'10.186.65.26' IDENTIFIED BY 'Orch@123';

GRANT ALL PRIVILEGES ON orchestrator.* TO 'orchestrator'@'10.186.65.26';

# 设置配置⽂件

(orchestrator节点都需要配置，此处以10.186.65.26节点为例)

cp /usr/local/orchestrator/orchestrator-sample.conf.json /etc/orchestrator.conf.json

vi /etc/orchestrator.conf.json

"MySQLOrchestratorHost": "10.186.65.29",                // 后端数据库连接ip
"MySQLOrchestratorPort": 3307, // 后端数据库端⼝
"MySQLOrchestratorDatabase": "orchestrator", // 后端数据库使⽤的schema
"MySQLOrchestratorUser": "orchestrator", // 后端数据库连接账户
"MySQLOrchestratorPassword": "Orch@123", // 后端数据库连接密码
.........
"MySQLTopologyUser": "orchestrator", // 接管的MySQL需要创建的账户，运维数据库使⽤
"MySQLTopologyPassword": "orch_topology_password", // 接管的MySQL创建账户的密码，运维数据库使⽤
.........
"MySQLOrchestratorUseMutualTLS": false,
........
"HostnameResolveMethod": "none",
"MySQLHostnameResolveMethod": "@@report_host", // 确保接管的数据库都配置了report_host
........
"RaftEnabled": true, // 是否开启raft，使⽤orch⾼可⽤时需要开启
"BackendDB": "mysql", // 后端连接的数据库类型
"RaftBind": "10.186.65.26", // raft的bind地址，写本机的ip
"RaftDataDir": "/usr/local/orchestrator", // raft的数据⽬录
"DefaultRaftPort": 10008, // raft使⽤的端⼝
"RaftNodes": [ // raft的节点，即3个orch的主机
  "10.186.65.5",
  "10.186.65.11",
  "10.186.65.26"
]

说明：设置配置⽂件记得去掉配置⽂件中的注释；

# 启动

cd /usr/local/orchestrator

nohup ./orchestrator -config /etc/orchestrator.conf.json http &

# 配置环境变量

vi /etc/profile

export PATH=$PATH:/usr/local/orchestrator/:/usr/local/orchestrator/resources/bin/

export PATH=$PATH:/usr/local/orchestrator/:/usr/local/orchestrator/resources/bin/

# 界⾯访问：

http://10.186.65.5:3000

http://10.186.65.11:3000

http://10.186.65.26:3000