consul集群与多数据中心

集群

下载consul包

https://www.consul.io/downloads.html
测试consul版本1.5.3

创建配置文件

自定义端口-可用于单机测试生产环境不建议修改端口集群开3-5个

配置1

{
    "datacenter": "us-east-1", //数据中心名称 同一集群名称需相同
    "data_dir": "./data1/",
	"node_name": "dc1",//节点名称  相同集群名称不能冲突
	"bootstrap_expect": 2,
	"bind_addr": "0.0.0.0",
	"retry_join":["127.0.0.1:9301"],//启动自动加入节点
	"retry_interval": "10s",
	"retry_max": 0,
	"server": true,
    "addresses": { 
        "http": "0.0.0.0"
    },
	"client_addr":"0.0.0.0",
	"ui":true,
    "ports": {
        "http": 9500,
		"gRPC": 9502,
		"DNS": 9600,
		"server": 9300 ,
		"serf_lan": 9301,
		"serf_wan": 9302
    }, 
    "acl" : {
        "enabled": false,
        "default_policy": "deny",
        "down_policy": "extend-cache",
        "tokens" : {
          "master" : "b1gs33cr3t"
        }
    }
}

配置2

{
    "datacenter": "us-east-1",
    "data_dir": "./data2/",
	"node_name": "dc2",
	"bootstrap_expect": 2,
	"bind_addr": "0.0.0.0",
	"retry_join":["127.0.0.1:9301"],
	"retry_interval": "10s",
	"retry_max": 0,
	"server": true,
    "addresses": { 
        "http": "0.0.0.0"
    },
	"client_addr":"0.0.0.0",
	"ui":true,
    "ports": {
        "http": 10500,
		"gRPC": 10502,
		"DNS": 10600,
		"server": 10300 ,
		"serf_lan": 10301,
		"serf_wan": 10302
    }, 
    "acl" : {
        "enabled": false,
        "default_policy": "deny",
        "down_policy": "extend-cache",
        "tokens" : {
          "master" : "b1gs33cr3t"
        }
      }
}

配置3

{
    "datacenter": "us-east-1",
    "data_dir": "./data3/",
	"node_name": "dc3",
	"bootstrap_expect": 2,
	"bind_addr": "0.0.0.0",
	"retry_join":["127.0.0.1:9301"],
	"retry_interval": "10s",
	"retry_max": 0,
	"server": true,
    "addresses": { 
        "http": "0.0.0.0"
    },
	"client_addr":"0.0.0.0",
	"ui":true,
    "ports": {
        "http": 11500,
		"gRPC": 11502,
		"DNS": 11600,
		"server": 11300 ,
		"serf_lan": 11301,
		"serf_wan": 11302
    }, 
    "acl" : {
        "enabled": false,
        "default_policy": "deny",
        "down_policy": "extend-cache",
        "tokens" : {
          "master" : "b1gs33cr3t"
        }
      }
}

启动命令

consul agent -config-file=consul1.json

访问地址 http://127.0.0.1:9500

多数据中心

配置1

{
    "datacenter": "china",//数据中心名称
    "data_dir": "./data5/",
	"node_name": "chinadc1",//节点名字
	"bootstrap_expect": 2,
	"bind_addr": "0.0.0.0",
	"retry_join":["127.0.0.1:12301"],//集群自动加入
	"retry_join_wan":["127.0.0.1:9302"],//数据中心自动加入
	"retry_interval": "10s",
	"retry_max": 0,
	"server": true,
    "addresses": { 
        "http": "0.0.0.0"
    },
	"client_addr":"0.0.0.0",
	"ui":true,
    "ports": {
        "http": 12500,
		"gRPC": 12502,
		"DNS": 12600,
		"server": 12300 ,
		"serf_lan": 12301,
		"serf_wan": 12302
    }, 
    "acl" : {
        "enabled": false,
        "default_policy": "deny",
        "down_policy": "extend-cache",
        "tokens" : {
          "master" : "b1gs33cr3t"
        }
      }
}

配置2

{
    "datacenter": "china",
    "data_dir": "./data6/",
	"node_name": "chinadc2",
	"bootstrap_expect": 2,
	"bind_addr": "0.0.0.0",
	"retry_join":["127.0.0.1:12301"],
	"retry_join_wan":["127.0.0.1:9302"],
	"retry_interval": "10s",
	"retry_max": 0,
	"server": true,
    "addresses": { 
        "http": "0.0.0.0"
    },
	"client_addr":"0.0.0.0",
	"ui":true,
    "ports": {
        "http": 14500,
		"gRPC": 14502,
		"DNS": 14600,
		"server": 14300 ,
		"serf_lan": 14301,
		"serf_wan": 14302
    }, 
    "acl" : {
        "enabled": false,
        "default_policy": "deny",
        "down_policy": "extend-cache",
        "tokens" : {
          "master" : "b1gs33cr3t"
        }
      }
}

配置3

{
    "datacenter": "china",
    "data_dir": "./data7/",
	"node_name": "chinadc3",
	"bootstrap_expect": 2,
	"bind_addr": "0.0.0.0",
	"retry_join":["127.0.0.1:12301"],
	"retry_join_wan":["127.0.0.1:9302"],
	"retry_interval": "10s",
	"retry_max": 0,
	"server": true,
    "addresses": { 
        "http": "0.0.0.0"
    },
	"client_addr":"0.0.0.0",
	"ui":true,
    "ports": {
        "http": 15500,
		"gRPC": 15502,
		"DNS": 15600,
		"server": 15300 ,
		"serf_lan": 15301,
		"serf_wan": 15302
    }, 
    "acl" : {
        "enabled": false,
        "default_policy": "deny",
        "down_policy": "extend-cache",
        "tokens" : {
          "master" : "b1gs33cr3t"
        }
      }
}