consul的使用

一、安装consul

yum install consul

二、搭建集群

2.1、启动命令 consul_start.sh

#!/bin/bash
nohup consul agent -config-dir=/etc/consul.d/ > /tmp/consul-server.log 2>&1 &

2.2、配置文件 /etc/consul.d/server.json

{
    "data_dir": "/etc/consul",
    "ui": true,
    "server": true,
    "bootstrap": false,
    "node_name": "consul-23",
    "client_addr": "0.0.0.0",
    "bind_addr": "10.8.8.23",
    "watches":[
        {
            "type": "key",
            "key": "common",
            "handler_type": "script",
            "args": ["/home/www/release-script/sync_configure_center.sh", "common"]
        },
        {
            "type": "key",
            "key": "database",
            "handler_type": "script",
            "args": ["/home/www/release-script/sync_configure_center.sh", "database"]
        },
        {
            "type": "key",
            "key": "pay",
            "handler_type": "script",
            "args": ["/home/www/release-script/sync_configure_center.sh", "pay"]
        }
    ]
}

2.3、加入集群

consul members    # 在已经启动的结点上执行该命令。打印出集群结点，随便复制Address的结点
consul join 10.8.8.23:8301     # 加入集群