consul 入门配置安装

./consul agent -server -data-dir=/tmp/consul -node=agent-one -bind=192.168.2.101 -client=0.0.0.0 -enable-script-checks=true -ui -config-dir=/etc/consul.d

./consul agent -server -data-dir=/tmp/consul -node=agent-two -bind=192.168.2.102 -client=0.0.0.0 -enable-script-checks=true -ui -config-dir=/etc/consul.d

./consul agent -server -data-dir=/tmp/consul -node=agent-three -bind=192.168.2.103 -client=0.0.0.0 -enable-script-checks=true -ui -config-dir=/etc/consul.d

基本配置

1. /etc/consul.d/config.json

   {
       "bootstrap_expect": 3,
       "encrypt": "qV5WVLHhFnwEle8l/Edi/Q==",
       "data_dir": "/home/work/consul/data",
       "log_level": "INFO",
       "node_name": "dev-192_168_2_101",
       "bind_addr": "192.168.2.101",
       "client_addr": "0.0.0.0",
       "ui": true,
       "server": true,
       "enable_script_checks": true,
       "addresses": {
           "https": "0.0.0.0",
           "dns": "0.0.0.0"
       }
   }
   
   

2. 启动./consul agent -config-dir=/etc/consul.d

查看leader/follower情况

./consul operator raft list-peers

结果：
Node               ID                                    Address             State     Voter  RaftProtocol
dev-192_168_2_101  faa14a6c-16cb-2e97-c383-dfbe1da73d0a  192.168.2.101:8300  leader    true   3
dev-192_168_2_102  2cd9cdf9-cbfa-1794-ed3e-83d9813a1bed  192.168.2.102:8300  follower  true   3
dev-192_168_2_103  b4517e53-0b41-72aa-f99f-63fc7723ac57  192.168.2.103:8300  follower  true   3