Docker两主机配置MongoDB复制集

通过Docker用两台主机配置并测试一下MongoDB复制集，比较详细

1. 建立Swarm集群 - 连接两台服务器

0. 第一台主机设置为集群manager

   docker swarm init
   

1. 查找Swarm Manager的token

   docker swarm join-token worker -q
   

   得到token：

   SWMTKN-1-226ce73rn808wmcy91zg68qfn6jq021rrh385e8nuyal0cz51g-bgy5jkn6tt606u209n1nd9i0f
   

2. 查找Swarm Manager的ip / port

   docker node inspect self
   

   得到信息：

   "ManagerStatus": {
               "Leader": true,
               "Reachability": "reachable",
               "Addr": "172.18.7.130:2377"
           }
   

3. 建立集群Overlay网络

   docker network create --driver=overlay --atachable my-overlay-network
   

4. 第二台主机加入Swarm网络

   docker swarm join --token 得到的token 得到的ip:得到的port
   

2. 两台主机上分别创建Container

0. 创建Container

   docker run \
   -dit \
   --name mongo1 \
   --net my-overlay-network \
   mongo mongod --replSet rs0
   

1. 进入container

   docker run -dit --name mongo1 --net my-overlay-network mongo mongod --replSet rs0
   

   docker exec -it mongo1 mongosh
   

   rs.initiate({_id: "rs0", members: [{_id: 0, host: "mongo1:27017"}, {_id: 1, host: "mongo2:27017"}]})
   

2. 验证

   rs.status()
   

   members: [
       {
         _id: 0,
         name: 'mongo1:27017',
         health: 1,
         state: 1,
         stateStr: 'PRIMARY',
         uptime: 470,
         optime: { ts: Timestamp({ t: 1682403381, i: 7 }), t: Long("1") },
         optimeDate: ISODate("2023-04-25T06:16:21.000Z"),
         lastAppliedWallTime: ISODate("2023-04-25T06:16:21.304Z"),
         lastDurableWallTime: ISODate("2023-04-25T06:16:21.304Z"),
         syncSourceHost: '',
         syncSourceId: -1,
         infoMessage: 'Could not find member to sync from',
         electionTime: Timestamp({ t: 1682403379, i: 1 }),
         electionDate: ISODate("2023-04-25T06:16:19.000Z"),
         configVersion: 1,
         configTerm: 1,
         self: true,
         lastHeartbeatMessage: ''
       },
       {
         _id: 1,
         name: 'mongo2:27017',
         health: 1,
         state: 2,
         stateStr: 'SECONDARY',
         uptime: 18,
         optime: { ts: Timestamp({ t: 1682403381, i: 7 }), t: Long("1") },
         optimeDurable: { ts: Timestamp({ t: 1682403381, i: 7 }), t: Long("1") },
         optimeDate: ISODate("2023-04-25T06:16:21.000Z"),
         optimeDurableDate: ISODate("2023-04-25T06:16:21.000Z"),
         lastAppliedWallTime: ISODate("2023-04-25T06:16:21.304Z"),
         lastDurableWallTime: ISODate("2023-04-25T06:16:21.304Z"),
         lastHeartbeat: ISODate("2023-04-25T06:16:25.966Z"),
         lastHeartbeatRecv: ISODate("2023-04-25T06:16:25.467Z"),
         pingMs: Long("0"),
         lastHeartbeatMessage: '',
         syncSourceHost: 'mongo1:27017',
         syncSourceId: 0,
         infoMessage: '',
         configVersion: 1,
         configTerm: 1
       }
     ],
   

   测试一下，大功告成