networking - 如何更改 docker swarm 入口网络的 IP 地址范围

Question

我使用 docker swarm 1.13.1，当我初始化 docker swarm 或加入 docker swarm 时，它有时会在“172.19.0.0/16”子网中创建一个 docker_gwbridge 网络。

但是我的计算机子网在相同的范围内，所以当它初始化这个网络时，docker swarm 主机变得无法从我的计算机访问。

所以我的问题是:如何更改现有 docker 网络的子网。

> docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
ac1100164960        bridge              bridge              local
3838ae360f35        docker_gwbridge     bridge              local
f9a77266aa15        host                host                local
rgqnm19zbasv        ingress             overlay             swarm
04c1c6b3ade7        none                null                local

检查网络:

> docker network inspect 3838ae360f35
[
    {
        "Name": "docker_gwbridge",
        "Id": "3838ae360f3585f2cda8a43a939643cdd74c0db9bfb7f4f18b3b80ae07b3b9db",
        "Created": "2017-03-22T13:26:50.352865644+01:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.19.0.0/16",
                    "Gateway": "172.19.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Containers": {
            "ingress-sbox": {
                "Name": "gateway_ingress-sbox",
                "EndpointID": "194d965dd2997bddb52eab636950e219043215a5a1a6a60d08f34e454a0eaa56",
                "MacAddress": "02:42:ac:13:00:02",
                "IPv4Address": "172.19.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {
            "com.docker.network.bridge.enable_icc": "false",
            "com.docker.network.bridge.enable_ip_masquerade": "true",
            "com.docker.network.bridge.name": "docker_gwbridge"
        },
        "Labels": {}
    }
]

Answer 1

您可以创建 docker_gwbridge在初始化群之前，如 explained here .
例如:

docker network rm docker_gwbridge
docker network create --subnet=172.20.0.1/16 -o com.docker.network.bridge.enable_icc=false -o com.docker.network.bridge.name=docker_gwbridge docker_gwbridge