consul单节点搭建

1.consul要素：

注册中心、配置中心、数据一致性

2.注册中心：

服务注册、服务发现、健康检查、高可用、高效率低延迟、跨数据中心

3.consul--raft库

4.serf封装八卦算法 

 

2.consul搭建：

--集群搭建配置信息：
{
  "id": "/cms-poc/trial-production/components/consul/v1/node1",
  "backoffFactor": 1.15,
  "backoffSeconds": 1,
  "cmd": "consul agent -server -data-dir /consul/data -config-dir /consul/config -advertise 172.19.32.68 -datacenter dc001 -client 0.0.0.0 -ui",
  "constraints": [
    [
      "hostname",
      "IS",
      "172.19.32.68"
    ]
  ],
  "container": {
    "portMappings": [
      {
        "containerPort": 8300,
        "hostPort": 8300,
        "protocol": "tcp",
        "servicePort": 10059
      },
      {
        "containerPort": 8301,
        "hostPort": 8301,
        "protocol": "udp,tcp",
        "servicePort": 10060
      },
      {
        "containerPort": 8302,
        "hostPort": 8302,
        "protocol": "udp,tcp",
        "servicePort": 10061
      },
      {
        "containerPort": 8500,
        "hostPort": 8500,
        "labels": {
          "VIP_1": "/ms-consul:8500"
        },
        "protocol": "tcp",
        "servicePort": 10062
      },
      {
        "containerPort": 8600,
        "hostPort": 8600,
        "protocol": "tcp",
        "servicePort": 10063
      }
    ],
    "type": "DOCKER",
    "volumes": [
      {
        "containerPath": "/consul/data",
        "hostPath": "/data/consul/data",
        "mode": "RW"
      },
      {
        "containerPath": "/consul/config",
        "hostPath": "/data/consul/config",
        "mode": "RW"
      }
    ],
    "docker": {
      "image": "consul",
      "forcePullImage": false,
      "privileged": false,
      "parameters": []
    }
  },
  "cpus": 1,
  "disk": 0,
  "instances": 1,
  "maxLaunchDelaySeconds": 3600,
  "mem": 1024,
  "gpus": 0,
  "networks": [
    {
      "mode": "container/bridge"
    }
  ],
  "requirePorts": false,
  "upgradeStrategy": {
    "maximumOverCapacity": 1,
    "minimumHealthCapacity": 1
  },
  "killSelection": "YOUNGEST_FIRST",
  "unreachableStrategy": {
    "inactiveAfterSeconds": 0,
    "expungeAfterSeconds": 0
  },
  "healthChecks": [],
  "fetch": []
}