docker 搭建 replicaset 无法使用主机ip问题

[xujiang1]

我有一个主机 192.168.31.206 在上面使用docker搭建了3个节点 ip分别为：

/2_mongo_shard2 - 172.17.0.4

/1_mongo_shard2 - 172.17.0.3

/0_mongo_shard2 - 172.17.0.2

mongodb 配置文件为：

[root@vipsc-159 config]# cat mongod.conf

systemLog:
  destination: file
  logAppend: true
  path: /data/log/mongod.log
storage:
  dbPath: /data/db
  journal:
    enabled: true
  directoryPerDB: true
  engine: wiredTiger
  wiredTiger:
    engineConfig:
      cacheSizeGB: 10
      journalCompressor: snappy
      directoryForIndexes: true
    collectionConfig:
      blockCompressor: snappy
    indexConfig:
      prefixCompression: true
net:
  bindIp: 0.0.0.0
  port: 27018
replication:
  oplogSizeMB: 10240
  replSetName: rs2
sharding:
  clusterRole: shardsvr

processManagement:
  fork: false
  pidFilePath: /data/pid/shard2.pid

使用docker-compose启动：

[root@vipsc-159 docker_compose_yaml]# cat mongo_shard2.yml
shard2:
  image: mongo:4.2.7
  container_name: 0_mongo_shard2
  volumes:
    - /usr/local/vipcloud/data/data1/dockervolumes/shard2/config:/etc/mongod
    - /usr/local/vipcloud/data/data1/dockervolumes/shard2/data:/data
  ports:
    - 32018:27018
  command: mongod -f /etc/mongod/mongod.conf

我将3个docker的端口分别映射到32018，32118，32218
但是当我初始化 replicaset时无法通过主机ip进行初始化：

rs.initiate(
    {
        _id: "rs2",
        members: [
            { _id: 0, host: "192.168.31.206:32018", priority: 10 },
            { _id: 1, host: "192.168.31.206:32118", arbiterOnly: true },
            { _id: 2, host: "192.168.31.206:32218", priority: 1 }
        ]
    }
)

会报错

{ 
    "operationTime" : Timestamp(0, 0), 
    "ok" : 0.0, 
    "errmsg" : "No host described in new configuration 1 for replica set rs2 maps to this node", 
    "code" : 93.0, 
    "codeName" : "InvalidReplicaSetConfig", 
    "$clusterTime" : {
        "clusterTime" : Timestamp(0, 0), 
        "signature" : {
            "hash" : BinData(0, "AAAAAAAAAAAAAAAAAAAAAAAAAAA="), 
            "keyId" : 0
        }
    }
}

但是 可以通过docker的ip进行初始化

rs.initiate(
    {
        _id: "rs2",
        members: [
            { _id: 0, host: "172.17.0.4:32018", priority: 10 },
            { _id: 1, host: "172.17.0.3:32118", arbiterOnly: true },
            { _id: 2, host: "172.17.0.2:32218", priority: 1 }
        ]
    }
)

为什么

如果我希望通过192.168.31.206初始化成功 我应该怎么做

希望得到大家的帮助

[wglambert]

I would try asking over at the Docker Community Forums, Docker Community Slack, or Stack Overflow. Since these repos aren't really a user-help forum

#246 (comment)

Adding automation for setting up a replica set is not something we want to add to the image since it requires an external service like consul in order to reliably coordinate which is the first and where to join.

Other issue about replicasets #339