よく使うDockerコマンド

調査系のみ

コンテナの基本情報を絞って表示

docker ps --format 'table {{.Names}}\t{{.Image}}\t{{.Status}}'
NAMES               IMAGE               STATUS
r1                  redis               Up 25 minutes

コンテナのIPアドレス一覧

docker ps -q | xargs docker inspect --format '{{ .Name }} - {{ .NetworkSettings.IPAddress }}'
/r1 - 172.18.0.2

コンテナがマウントしているボリュームを表示

docker run  -v /docker/redis-data:/data --name r1 -d redis
# マウント一覧を表示
docker ps -q   | xargs docker inspect --format '{{ .Name }} - {{range $mount :=.Mounts}}{{ $mount.Source }} <-> {{ $mount.Destination }}{{end}}'
/r1 - /docker/redis-data <-> /data

コンテナの統計情報

docker ps -q | xargs docker stats
CONTAINER ID        NAME                CPU %               MEM USAGE / LIMIT     MEM %
     NET I/O             BLOCK I/O           PIDS
3c1719011282        r1                  0.08%               6.918MiB / 737.6MiB   0.94%     26.3kB / 90B        6.37MB / 0B         4

docker内のネットワーク

$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
cc9ab9e4598e        bridge              bridge              local
fa054a9af353        host                host                local
f50397115ef2        none                null                local
$ docker network inspect bridge
[
    {
        "Name": "bridge",
        "Id": "cc9ab9e4598e563b04c3c58f93ccdc15d9c1c682abbaf05e44034c63254cde4f",
        "Created": "2018-08-06T16:05:15.115331313Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.18.0.1/24",
                    "Gateway": "172.18.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "0e4a62e4d4a90d38f9f3d1be868f278807b390cdaba92951448ef64bdedd492e": {
                "Name": "tutorial_web_1",
                "EndpointID": "b396b59a93be30084d902e882eb21e961eac9d8599edbf32e832e1c05d3dc305",
                "MacAddress": "02:42:ac:12:00:03",
                "IPv4Address": "172.18.0.3/24",
                "IPv6Address": ""
            },
            "94158270f37a09f5ee28412dc569b048319fec166e1b0cf952fd8efa24c798a7": {
                "Name": "tutorial_redis_1",
                "EndpointID": "a14d820f0659721ebe1293e56871e1e68f94d6e07c5067f85c892e37a86bcfe4",
                "MacAddress": "02:42:ac:12:00:02",
                "IPv4Address": "172.18.0.2/24",
                "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": {}
    }
]