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docker 记录

docker 启动容器、进入容器、删除容器等

在生产环境中，为了提高容器的高可用性和安全性，一方面要合理使用资源限制参数来管理容器的资源消耗；另一方面要指定合适的容器重启策略，来自动重启退出的容器。

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➜  Downloads docker ps -a
CONTAINER ID   IMAGE     COMMAND       CREATED        STATUS                    PORTS     NAMES
19d7ad3d29cb   centos    "/bin/bash"   14 hours ago   Exited (0) 13 hours ago             charming_engelbart

# 启动容器
➜  Downloads docker start 19d7ad3d29cb
19d7ad3d29cb

# 进入容器
➜  Downloads docker attach 19d

# 删除容器
➜  Downloads docker rm 0509
Error response from daemon: You cannot remove a running container 0509d2e0e68d29c4b60bf00d7e444cd5f10e000c6db8e0c69e6472b7eb31059c. Stop the container before attempting removal or force remove

# 强制删除容器
➜  Downloads docker rm -f 0509
0509

# 容器导出
big-data docker export -o ./centos_1-19.tar 19d

# 查看容器信息等
➜  big-data docker container inspect 19d
[
    {
        "Id": "19d7ad3d29cbeaa490759891fd6b24c3b76f72e2e2ab0b4c99b826e69b7bbd39",
        "Created": "2021-01-18T12:30:00.994571758Z",
        "Path": "/bin/bash",
        "Args": [],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 1693,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2021-01-19T02:05:17.487554903Z",
            "FinishedAt": "2021-01-18T12:52:17.688931234Z"
        },
        "Image": "sha256:300e315adb2f96afe5f0b2780b87f28ae95231fe3bdd1e16b9ba606307728f55",
        "ResolvConfPath": "/var/lib/docker/containers/19d7ad3d29cbeaa490759891fd6b24c3b76f72e2e2ab0b4c99b826e69b7bbd39/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/19d7ad3d29cbeaa490759891fd6b24c3b76f72e2e2ab0b4c99b826e69b7bbd39/hostname",
        "HostsPath": "/var/lib/docker/containers/19d7ad3d29cbeaa490759891fd6b24c3b76f72e2e2ab0b4c99b826e69b7bbd39/hosts",
        "LogPath": "/var/lib/docker/containers/19d7ad3d29cbeaa490759891fd6b24c3b76f72e2e2ab0b4c99b826e69b7bbd39/19d7ad3d29cbeaa490759891fd6b24c3b76f72e2e2ab0b4c99b826e69b7bbd39-json.log",
        "Name": "/charming_engelbart",
        "RestartCount": 0,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": null,
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "default",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "no",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "CapAdd": null,
            "CapDrop": null,
            "Capabilities": null,
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "private",
            "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": [],
            "BlkioDeviceReadBps": null,
            "BlkioDeviceWriteBps": null,
            "BlkioDeviceReadIOps": null,
            "BlkioDeviceWriteIOps": null,
            "CpuPeriod": 0,
            "CpuQuota": 0,
            "CpuRealtimePeriod": 0,
            "CpuRealtimeRuntime": 0,
            "CpusetCpus": "",
            "CpusetMems": "",
            "Devices": [],
            "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/overlay2/1399c30f19a036d8a981e9c2501b4bfb8f5dc0d4ad17b9f7524aa4e6c4f822e9-init/diff:/var/lib/docker/overlay2/ac2768f1f10cdd6a3a96d526fdba25dd6a50dc8adb9dc9be6e869b2f6d98b726/diff",
                "MergedDir": "/var/lib/docker/overlay2/1399c30f19a036d8a981e9c2501b4bfb8f5dc0d4ad17b9f7524aa4e6c4f822e9/merged",
                "UpperDir": "/var/lib/docker/overlay2/1399c30f19a036d8a981e9c2501b4bfb8f5dc0d4ad17b9f7524aa4e6c4f822e9/diff",
                "WorkDir": "/var/lib/docker/overlay2/1399c30f19a036d8a981e9c2501b4bfb8f5dc0d4ad17b9f7524aa4e6c4f822e9/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "19d7ad3d29cb",
            "Domainname": "",
            "User": "",
            "AttachStdin": true,
            "AttachStdout": true,
            "AttachStderr": true,
            "Tty": true,
            "OpenStdin": true,
            "StdinOnce": true,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
            ],
            "Cmd": [
                "/bin/bash"
            ],
            "Image": "centos",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": {
                "org.label-schema.build-date": "20201204",
                "org.label-schema.license": "GPLv2",
                "org.label-schema.name": "CentOS Base Image",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vendor": "CentOS"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "4730e0d0e8643e8e546ac952ff06337eb6a5e56960659eeb990e032920adcbaf",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/4730e0d0e864",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "65d9cb246361c71aa16c3a4857280110f494fc8d6a68e7dd5a628e83f60c4f19",
            "Gateway": "172.17.0.1",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "172.17.0.2",
            "IPPrefixLen": 16,
            "IPv6Gateway": "",
            "MacAddress": "02:42:ac:11:00:02",
            "Networks": {
                "bridge": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "7f0b4f22bbcd47519c542b9b25d362d0c7e882537638dfd0d55a6fc4900e85c3",
                    "EndpointID": "65d9cb246361c71aa16c3a4857280110f494fc8d6a68e7dd5a628e83f60c4f19",
                    "Gateway": "172.17.0.1",
                    "IPAddress": "172.17.0.2",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "02:42:ac:11:00:02",
                    "DriverOpts": null
                }
            }
        }
    }
]

# 查看容器内进程
➜  big-data docker top 19d
PID                 USER                TIME                COMMAND
1693                root                0:00                /bin/bash

docker run -v参数

格式：-v 本地目录:容器目录 或 -v 容器目录
示例：docker run -it –rm -v $PWD(本地目录):/python(容器目录) python /bin/bash
将本机的当前目录，挂载到镜像中的/python目录
docker run –rm -it -v /home/hyzhou/docker(本地目录):/data(容器目录) ubuntu:14.04 /bin/bash
将本机的/home/hyzhou/docker，挂载到镜像中的/data目录
其他参数：
　　1. -d: 后台运行容器
　　1. -p: 端口映射 5005:5004　　指定主机的5005端口映射到容器的5004端口
　　1. -it: 以交互模式运行启动容器