为什么 docker-compose 创建的网络模式为什么不在 docker 四大类型中？

Question

通过如下的 docker-compose.yaml 启动一个 rabbitmq

version: "3.7"
services:
  rabbitmq3-management:
    restart: always
    container_name: rabbitmq3-management
    image: rabbitmq:3-management
    hostname: rabbitmq3-management-standalone
    logging:
      driver: json-file
      options:
        max-size: "100m"
        max-file: "1"
    environment:
      - RABBITMQ_DEFAULT_USER=pon
      - RABBITMQ_DEFAULT_PASS=pon
    volumes:
      # - "./volumes:/var/lib/rabbitmq"
      - "./rabbitmq.conf:/etc/rabbitmq/rabbitmq.conf"
    ports:
      - "5672:5672"
      - "15672:15672"
      - "15692:15692"

然后使用 docker inspect rabbitmq3-management 查看容器信息

[
    {
        "Id": "c30c681cbe27d303af309bc3acd546833a9aeadbfed10761a57b642e29a3ec72",
        "Created": "2022-07-31T08:21:20.053832177Z",
        "Path": "docker-entrypoint.sh",
        "Args": [
            "rabbitmq-server"
        ],
        "State": {
            "Status": "exited",
            "Running": false,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 0,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2022-09-24T13:45:49.215719798Z",
            "FinishedAt": "2022-10-31T06:58:24.273140419Z"
        },
        "Image": "sha256:13f1d0a135aa88413c2e3fa3b3a3de335c8204ba32adfc0f47120230b4852713",
        "ResolvConfPath": "/var/lib/docker/containers/c30c681cbe27d303af309bc3acd546833a9aeadbfed10761a57b642e29a3ec72/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/c30c681cbe27d303af309bc3acd546833a9aeadbfed10761a57b642e29a3ec72/hostname",
        "HostsPath": "/var/lib/docker/containers/c30c681cbe27d303af309bc3acd546833a9aeadbfed10761a57b642e29a3ec72/hosts",
        "LogPath": "/var/lib/docker/containers/c30c681cbe27d303af309bc3acd546833a9aeadbfed10761a57b642e29a3ec72/c30c681cbe27d303af309bc3acd546833a9aeadbfed10761a57b642e29a3ec72-json.log",
        "Name": "/rabbitmq3-management",
        "RestartCount": 0,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "docker-default",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [
                "/home/bot/opt/docker-compose-public/rabbit/volumes:/var/lib/rabbitmq:rw"
            ],
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {
                    "max-file": "1",
                    "max-size": "100m"
                }
            },
            "NetworkMode": "rabbit_default",
            "PortBindings": {
                "15672/tcp": [
                    {
                        "HostIp": "",
                        "HostPort": "15672"
                    }
                ],
                "5672/tcp": [
                    {
                        "HostIp": "",
                        "HostPort": "5672"
                    }
                ]
            },
            "RestartPolicy": {
                "Name": "",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": [],
            "CapAdd": null,
            "CapDrop": null,
            "CgroupnsMode": "host",
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "shareable",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": false,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": null,
            "UTSMode": "",
            "UsernsMode": "",
            "ShmSize": 67108864,
            "Runtime": "runc",
            "ConsoleSize": [
                0,
                0
            ],
            "Isolation": "",
            "CpuShares": 0,
            "Memory": 0,
            "NanoCpus": 0,
            "CgroupParent": "",
            "BlkioWeight": 0,
            "BlkioWeightDevice": null,
            "BlkioDeviceReadBps": null,
            "BlkioDeviceWriteBps": null,
            "BlkioDeviceReadIOps": null,
            "BlkioDeviceWriteIOps": null,
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": null,
            "DeviceCgroupRules": null,
            "DeviceRequests": null,
            "KernelMemory": 0,
            "KernelMemoryTCP": 0,
            "MemoryReservation": 0,
            "MemorySwap": 0,
            "MemorySwappiness": null,
            "OomKillDisable": false,
            "PidsLimit": null,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": [
                "/proc/asound",
                "/proc/acpi",
                "/proc/kcore",
                "/proc/keys",
                "/proc/latency_stats",
                "/proc/timer_list",
                "/proc/timer_stats",
                "/proc/sched_debug",
                "/proc/scsi",
                "/sys/firmware"
            ],
            "ReadonlyPaths": [
                "/proc/bus",
                "/proc/fs",
                "/proc/irq",
                "/proc/sys",
                "/proc/sysrq-trigger"
            ]
        },
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/lib/docker/overlay2/501eeca753155e28257bd2b19dd7b95814807bf39d96eb005c37a9934df00430-init/diff:/var/lib/docker/overlay2/96c2738ddce886102b2d30ea6c3eb9e332ba96bdc91e998f6bfce4eb0e299319/diff:/var/lib/docker/overlay2/7a6b805d6d56e83352b7b28e0661585338e173c7f8e45adfa824112448604e1b/diff:/var/lib/docker/overlay2/59ff0ae17874980d1f591690f58c25ef21cbd53fd7a1d7c211da569593ab6fcf/diff:/var/lib/docker/overlay2/86e1ff071baece97b956f096b2c237202106935ad31b8aa7eed71a7c7f45335e/diff:/var/lib/docker/overlay2/24385ba4bd26c27c6c581fbe95635dea1739b377585c7d22d69420d89b9e5f49/diff:/var/lib/docker/overlay2/ce0e163dcf8be3164be70f3f7cb746af4ef8af3e8cb0c2b350e06edc29e1f6b9/diff:/var/lib/docker/overlay2/b722250773268c01e280b799b9a5cc335a711b5fc24bcf05562fccc3e8753541/diff:/var/lib/docker/overlay2/f3d85ca913cdb62f197e08262c201dd9502d11a7c63b662e7f9aff892535ff9f/diff:/var/lib/docker/overlay2/1143b67fe9b6fec0c0be1b8233356c073268f3bb5714cf2b8ade8a4b234afdb2/diff:/var/lib/docker/overlay2/86dabdb83dd77a60c5b0f1e28e2e00680c033ffe8f54db61afa7678f6f7eb128/diff",
                "MergedDir": "/var/lib/docker/overlay2/501eeca753155e28257bd2b19dd7b95814807bf39d96eb005c37a9934df00430/merged",
                "UpperDir": "/var/lib/docker/overlay2/501eeca753155e28257bd2b19dd7b95814807bf39d96eb005c37a9934df00430/diff",
                "WorkDir": "/var/lib/docker/overlay2/501eeca753155e28257bd2b19dd7b95814807bf39d96eb005c37a9934df00430/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [
            {
                "Type": "bind",
                "Source": "/home/bot/opt/docker-compose-public/rabbit/volumes",
                "Destination": "/var/lib/rabbitmq",
                "Mode": "rw",
                "RW": true,
                "Propagation": "rprivate"
            }
        ],
        "Config": {
            "Hostname": "rabbitmq3-management-master",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "ExposedPorts": {
                "15671/tcp": {},
                "15672/tcp": {},
                "15691/tcp": {},
                "15692/tcp": {},
                "25672/tcp": {},
                "4369/tcp": {},
                "5671/tcp": {},
                "5672/tcp": {}
            },
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "RABBITMQ_DEFAULT_USER=pon",
                "RABBITMQ_DEFAULT_PASS=pon",
                "PATH=/opt/rabbitmq/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "OPENSSL_VERSION=1.1.1q",
                "OPENSSL_SOURCE_SHA256=d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca",
                "OPENSSL_PGP_KEY_IDS=0x8657ABB260F056B1E5190839D9C4D26D0E604491 0x5B2545DAB21995F4088CEFAA36CEE4DEB00CFE33 0xED230BEC4D4F2518B9D7DF41F0DB4D21C1D35231 0xC1F33DD8CE1D4CC613AF14DA9195C48241FBF7DD 0x7953AC1FBC3DC8B3B292393ED5E9E43F7DF9EE8C 0xE5E52560DD91C556DDBDA5D02064C53641C25E5D",
                "OTP_VERSION=24.3.4.2",
                "OTP_SOURCE_SHA256=0376d50f867a29426d47600056e8cc49c95b51ef172b6b9030628e35aecd46af",
                "RABBITMQ_DATA_DIR=/var/lib/rabbitmq",
                "RABBITMQ_VERSION=3.10.6",
                "RABBITMQ_PGP_KEY_ID=0x0A9AF2115F4687BD29803A206B73A36E6026DFCA",
                "RABBITMQ_HOME=/opt/rabbitmq",
                "HOME=/var/lib/rabbitmq",
                "LANG=C.UTF-8",
                "LANGUAGE=C.UTF-8",
                "LC_ALL=C.UTF-8"
            ],
            "Cmd": [
                "rabbitmq-server"
            ],
            "Image": "rabbitmq:3-management",
            "Volumes": {
                "/var/lib/rabbitmq": {}
            },
            "WorkingDir": "",
            "Entrypoint": [
                "docker-entrypoint.sh"
            ],
            "OnBuild": null,
            "Labels": {
                "com.docker.compose.config-hash": "09e3dacf5df850ccfb36a36e255b01fa45323074b605ceaf22fa846b7ed39134",
                "com.docker.compose.container-number": "1",
                "com.docker.compose.oneoff": "False",
                "com.docker.compose.project": "rabbit",
                "com.docker.compose.project.config_files": "docker-compose.yaml",
                "com.docker.compose.project.working_dir": "/home/bot/opt/docker-compose-public/rabbit",
                "com.docker.compose.service": "rabbitmq3-management",
                "com.docker.compose.version": "1.25.0"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "aeedd25dc2d1bf676512bca9b9e74cce42eaf5d815f0afdfcfa32d812ee0830e",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/aeedd25dc2d1",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "rabbit_default": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": [
                        "rabbitmq3-management",
                        "c30c681cbe27",
                        "rabbitmq3-management-master"
                    ],
                    "NetworkID": "b40ffa70882f415bc43f21c0489b25b0f2c2fc4d74ff07fd0fdbca97c842fbe5",
                    "EndpointID": "",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "",
                    "DriverOpts": null
                }
            }
        }
    }
]

可以看到这里的网络类型是 rabbit_default 而不是 bridge、none、container、host 四者中的任意一个

docker 容器的网络模式

为什么？

Answer 1

我知道了，参考如何查看container工作在哪种网络模式

docker-compose.yaml 里面的 network_mode 只是 alias name，而不是 type name

要看一个容器用的是哪个类型的网络，需要使用 docker network ls

╰─➤  docker network ls
NETWORK ID     NAME                  DRIVER    SCOPE
ba7c42d4ad56   bridge                bridge    local
bd93d69c841a   host                  host      local
b8aa18650e51   ipshow_default        bridge    local
f41d3c5219fa   minio_default         bridge    local
078391fa7433   mongodb_default       bridge    local
14c6d66f93f9   mysql_default         bridge    local
71732bb5d45a   none                  null      local
b40ffa70882f   rabbit_default        bridge    local
db5f36326c91   rebloom_default       bridge    local
94276401b9b9   redis_default         bridge    local
50a1625d0277   test_onedev_default   bridge    local

可以看到我们的 rabbitmq3-management 的 network name 是 rabbit_default，network DRIVER 是 bridge