docker 容器内`ping container_name`失败

docker 容器内ping 另一个容器明失败

  1. 涉及容器
  • qinglong
  • jupyter
    qinglong里 ping jupyter
  1. 失败代码
[root@iZbp18y7b5jm99960ajdloZ ~]# docker exec -it qinglong ping jupyter
ping: bad address 'jupyter'

  1. 两容器正常启动

    [root@iZbp18y7b5jm99960ajdloZ ~]# docker ps -a
CONTAINER ID   IMAGE                          COMMAND                  CREATED        STATUS                      PORTS                                        NAMES
17dcadac93e1   zookeeper:3.4.9                "/docker-entrypoint.…"   7 hours ago    Up 7 hours                  2888/tcp, 0.0.0.0:2181->2181/tcp, 3888/tcp   zookeeper
350c27dd6d07   jupyter/datascience-notebook   "tini -g -- start-no…"   7 weeks ago    Up 24 hours (healthy)       0.0.0.0:8888->8888/tcp                       jupyter
287d6170e13c   whyour/qinglong:2.12           "./docker/docker-ent…"   7 weeks ago    Up 24 hours                 0.0.0.0:15700->5700/tcp                      qinglong
b7d81a4a3fd8   redis:5.0.14                   "docker-entrypoint.s…"   2 months ago   Exited (137) 25 hours ago                                                redis
8d34783feaa8   mysql:5.7.37                   "docker-entrypoint.s…"   2 months ago   Up 24 hours                 0.0.0.0:3306->3306/tcp, 33060/tcp            mysql2
[root@iZbp18y7b5jm99960ajdloZ ~]#

  2. 两容器在同一张网卡

    [root@iZbp18y7b5jm99960ajdloZ ~]# docker network inspect bridge
[
 {
     "Name": "bridge",
     "Id": "42ebf518e86e4ca08ee47c0a7d3839d9c23ef24d1e3511d2bdfdaf65975327f9",
     "Created": "2022-06-23T20:07:55.613373918+08:00",
     "Scope": "local",
     "Driver": "bridge",
     "EnableIPv6": false,
     "IPAM": {
         "Driver": "default",
         "Options": null,
         "Config": [
             {
                 "Subnet": "172.18.0.0/16",
                 "Gateway": "172.18.0.1"
             }
         ]
     },
     "Internal": false,
     "Attachable": false,
     "Ingress": false,
     "ConfigFrom": {
         "Network": ""
     },
     "ConfigOnly": false,
     "Containers": {
         "17dcadac93e10da4c52b11867c42450a99a6c4848e397a0b7cab6d1b9c142f75": {
             "Name": "zookeeper",
             "EndpointID": "713126dd4481f6cce80fd8cfaba13239807716bbbd028466b3e35a05b1cfc901",
             "MacAddress": "02:42:ac:12:00:05",
             "IPv4Address": "172.18.0.5/16",
             "IPv6Address": ""
         },
         "287d6170e13c90e9446c4988287cc0bdac06a1ec2776d208564e20b52002fc1a": {
             "Name": "qinglong",
             "EndpointID": "a987e4aacb11aab4c3b38979e2b87b75bc2abb6352dbc8dc3622b6b837c4897f",
             "MacAddress": "02:42:ac:12:00:02",
             "IPv4Address": "172.18.0.2/16",
             "IPv6Address": ""
         },
         "350c27dd6d07ab89bdd63005beb86df886cf4f660be816d10968ebd985651aea": {
             "Name": "jupyter",
             "EndpointID": "c530c13ebd5c20c2deb3d94db62701b976317d63d36576b7f21a7a08335ecae3",
             "MacAddress": "02:42:ac:12:00:04",
             "IPv4Address": "172.18.0.4/16",
             "IPv6Address": ""
         },
         "8d34783feaa8a2d8ee465d8b494b045c51e9c21f4be176dcda68b4d8ea2b293a": {
             "Name": "mysql2",
             "EndpointID": "f2d99e85aa50e79fa67f323f9b81f86db44ee8c82c84409a02f3dea68b2c56d1",
             "MacAddress": "02:42:ac:12:00:03",
             "IPv4Address": "172.18.0.3/16",
             "IPv6Address": ""
         }
     },
     "Options": {
         "com.docker.network.bridge.default_bridge": "true",
         "com.docker.network.bridge.enable_icc": "true",
         "com.docker.network.bridge.enable_ip_masquerade": "true",
         "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
         "com.docker.network.bridge.name": "docker0",
         "com.docker.network.driver.mtu": "1500"
     },
     "Labels": {}
 }
]
[root@iZbp18y7b5jm99960ajdloZ ~]#

那张网卡是docker0，重新换一个网卡就好了