基于 docker swarm 搭建跨主机的 mongodb 副本集遇到的坑，请大牛赐教

问题如下： 创建了两个 vm，主机名分别是: 'RedHat'和'gen8-arch-linux',用 docker stack 命令在两个 docker node 上起了两个 mongodb 的容器，并已加入到 docker overlay 的网络。但进入到其中任何一个 mongodb 的容器，初始化 replica set 时，连通不了另一个容器里的 mongodb 服务，故组 rs 不成功。经本人查看两个容器的 overlay 网络 IP，网络应该是通的，详情如下： 管理结点: [jacky@gen8-arch-linux ~]$ cat mongo.yml version: '3.4' services: primary: image: mongo:3.4 hostname: "{{.Service.Name}}" command: mongod --port 27017 --bind_ip=0.0.0.0 --replSet mongo --dbpath /data/db networks: - es volumes: - /home/jacky/data/mongo-data:/data/db deploy: restart_policy: condition: on-failure replicas: 1 placement: constraints: - node.hostname==gen8-arch-linux endpoint_mode: dnsrr secondary: image: mongo:3.4 hostname: "{{.Service.Name}}" command: mongod --port 27017 --bind_ip=0.0.0.0 --replSet mongo --dbpath /data/db networks: - es volumes: - /home/oracle/data/mongo-data:/data/db deploy: restart_policy: condition: on-failure replicas: 1 placement: constraints: - node.hostname==RedHat endpoint_mode: dnsrr networks: es: external: true [jacky@gen8-arch-linux ~]$ docker stack deploy -c mongo.yml mongo Creating service mongo_secondary Creating service mongo_primary [jacky@gen8-arch-linux ~]$ docker node ls ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS ENGINE VERSION vt82wfc13t831n2wcltm3d3lz RedHat Ready Active 18.06.0-ce xazp9k3n4axfb2n8emdrxl8ba * gen8-arch-linux Ready Active Leader 19.03.2-ce [jacky@gen8-arch-linux ~]$ docker service ls ID NAME MODE REPLICAS IMAGE PORTS mjfaxe0h7bms mongo_primary replicated 1/1 mongo:3.4 bcs50kfp6hd2 mongo_secondary replicated 1/1 mongo:3.4 [jacky@gen8-arch-linux ~]$ docker network ls | grep es se7u7jxai61l es overlay swarm [jacky@gen8-arch-linux ~]$ docker ps -a | grep mongo 97d200f88726 mongo:3.4 "docker-entrypoint.s…" 8 minutes ago Up 8 minutes 27017/tcp mongo_primary.1.699xh09shmdlyu7dpd43yzsy8 [jacky@gen8-arch-linux ~]$ docker inspect 97 | grep v4 "IPv4Address": "10.0.0.4" 工作结点: [oracle@RedHat ~]$ docker ps -a | grep 3.4 227dac4e143b mongo:3.4 "docker-entrypoint.s…" 12 minutes ago Up 11 minutes 27017/tcp mongo_secondary.1.mk3jiksavbmh5qch1yx4p2mht [oracle@RedHat ~]$ docker inspect 227 | grep v4 "IPv4Address": "10.0.0.2" 最后在管理结点上的 mongodb 容器组 replica set: [jacky@gen8-arch-linux ~]$ docker exec -it 97 /bin/bash root@mongo_primary:/# mongo MongoDB shell version v3.4.23 connecting to: mongodb://127.0.0.1:27017 MongoDB server version: 3.4.23 Welcome to the MongoDB shell. For interactive help, type "help". For more comprehensive documentation, see http://docs.mongodb.org/ Questions? Try the support group http://groups.google.com/group/mongodb-user Server has startup warnings: 2019-11-18T05:59:18.088+0000 I STORAGE [initandlisten] 2019-11-18T05:59:18.088+0000 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine 2019-11-18T05:59:18.088+0000 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database. 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted. 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] > exit bye root@mongo_primary:/# mongo MongoDB shell version v3.4.23 connecting to: mongodb://127.0.0.1:27017 MongoDB server version: 3.4.23 Server has startup warnings: 2019-11-18T05:59:18.088+0000 I STORAGE [initandlisten] 2019-11-18T05:59:18.088+0000 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine 2019-11-18T05:59:18.088+0000 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database. 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted. 2019-11-18T05:59:20.480+0000 I CONTROL [initandlisten] > cOnfig={_id:"mongo",members:[{_id:1,host:"mongo_primary:27017"},{_id:2,host:"mongo_secondary:27017"}]} { "_id" : "mongo", "members" : [ { "_id" : 1, "host" : "mongo_primary:27017" }, { "_id" : 2, "host" : "mongo_secondary:27017" } ] } > rs.initiate(config) { "ok" : 0, "errmsg" : "replSetInitiate quorum check failed because not all proposed set members responded affirmatively: mongo_secondary:27017 failed with Couldn't get a connection within the time limit", "code" : 74, "codeName" : "NodeNotFound" } > cOnfig={_id:"mongo",members:[{_id:1,host:"10.0.0.4:27017"},{_id:2,host:"10.0.0.2:27017"}]} { "_id" : "mongo", "members" : [ { "_id" : 1, "host" : "10.0.0.4:27017" }, { "_id" : 2, "host" : "10.0.0.2:27017" } ] } > rs.initiate(config) { "ok" : 0, "errmsg" : "replSetInitiate quorum check failed because not all proposed set members responded affirmatively: 10.0.0.2:27017 failed with Couldn't get a connection within the time limit", "code" : 74, "codeName" : "NodeNotFound" } 总结： 在管理结点上的 mongodb 容器上用主机名或 IP 地址访问另一个工作结点上的 mongodb 容器的服务，不通。 请大牛们赐教，小白多谢了！