一、docker exec
docker exec 在容器中执行/bin/bash
~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b54d60933d7 ninesun0318/flask "python app.py" 24 hours ago Up 24 hours 5000/tcp gracious_hawking [root@iZ2vceej7yes1abpm7yec2Z ~]# [root@iZ2vceej7yes1abpm7yec2Z ~]# docker exec -it 6b54d60933d7 /bin/bash root@6b54d60933d7:/app# ls app.py root@6b54d60933d7:/app# pdw bash: pdw: command not found root@6b54d60933d7:/app# pwd /app
docker exec 在容器中执行python程序
~]# docker exec -it 6b54d60933d7 python Python 3.6.12 (default, Oct 13 2020, 21:36:54) [GCC 8.3.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> print("hello dockker!!") hello dockker!!
查看容器ip地址
]# docker exec -it 6b54d60933d7 ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 12: eth0@if13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default link/ether 02:42:ac:11:00:02 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 172.17.0.2/16 brd 172.17.255.255 scope global eth0 valid_lft forever preferred_lft forever
二、停止容器
[root@iZ2vceej7yes1abpm7yec2Z ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6b54d60933d7 ninesun0318/flask "python app.py" 24 hours ago Up 24 hours 5000/tcp gracious_hawking [root@iZ2vceej7yes1abpm7yec2Z ~]# docker stop 6b5 6b5 [root@iZ2vceej7yes1abpm7yec2Z ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
三、为docker 容器指定name
~]# docker run -d --name=test ninesun0318/flask bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8 [root@iZ2vceej7yes1abpm7yec2Z ~]# [root@iZ2vceej7yes1abpm7yec2Z ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES bb42c845a4ed ninesun0318/flask "python app.py" 6 seconds ago Up 5 seconds 5000/tcp test
四、通过name启动容器
~]# docker stop test test [root@iZ2vceej7yes1abpm7yec2Z ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES [root@iZ2vceej7yes1abpm7yec2Z ~]# [root@iZ2vceej7yes1abpm7yec2Z ~]# docker start test test [root@iZ2vceej7yes1abpm7yec2Z ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES bb42c845a4ed ninesun0318/flask "python app.py" About a minute ago Up 2 seconds 5000/tcp test
五、显示容器的完整信息
原来containerid 是一个这么长的id.....
~]# docker inspect bb42c845a4ed [ { "Id": "bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8", "Created": "2020-11-10T13:49:00.495448812Z", "Path": "python", "Args": [ "app.py" ], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 6383, "ExitCode": 0, "Error": "", "StartedAt": "2020-11-10T13:50:04.26459612Z", "FinishedAt": "2020-11-10T13:49:54.877926435Z" }, "Image": "sha256:1f7f63f7ff02b49931d72607b08612b5983d13b4881757b9e4e518f87a7e6f7f", "ResolvConfPath": "/var/lib/docker/containers/bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8/resolv.conf", "HostnamePath": "/var/lib/docker/containers/bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8/hostname", "HostsPath": "/var/lib/docker/containers/bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8/hosts", "LogPath": "/var/lib/docker/containers/bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8/bb42c845a4edfdfbf20c6661a5cec0a92a69dd72f9ffaf4094c48d2e2207f5d8-json.log", "Name": "/test", "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, "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": [], "BlkioDeviceReadBps": null, "BlkioDeviceWriteBps": null, "BlkioDeviceReadIOps": null, "BlkioDeviceWriteIOps": null, "CpuPeriod": 0, "CpuQuota": 0, "CpuRealtimePeriod": 0, "CpuRealtimeRuntime": 0, "CpusetCpus": "", "CpusetMems": "", "Devices": [], "DeviceCgroupRules": null, "DiskQuota": 0, "KernelMemory": 0, "MemoryReservation": 0, "MemorySwap": 0, "MemorySwappiness": null, "OomKillDisable": false, "PidsLimit": 0, "Ulimits": null, "CpuCount": 0, "CpuPercent": 0, "IOMaximumIOps": 0, "IOMaximumBandwidth": 0 }, "GraphDriver": { "Data": { "LowerDir": "/var/lib/docker/overlay2/54518bbb5ecc78fb83d27843c9857c66d341646e235c8264a527d8d03bfade30-init/diff:/var/lib/docker/overlay2/ad5a55f3ad24dc090e95dce379000d2811e34cce4ba250886643488bd80f044c/diff:/var/lib/docker/overlay2/48a511ea7f64437c2b3faf64663d79d5d298d8b6f44f96bb283d9b3515dc3bcb/diff:/var/lib/docker/overlay2/060b0ad334803cd90fc43f3be04972615fdcde8aa1af896bea0f38351eef5858/diff:/var/lib/docker/overlay2/1720343e33c2f8e5c732677d6601e4aec690cd51664831d017dd9246889029eb/diff:/var/lib/docker/overlay2/f378846670249d5b48e8d5cf928e4ad932c6d601e4095018f3a41825707f005b/diff:/var/lib/docker/overlay2/552e6dc16402f5b574ae236fd2435b7fc20b389179a05338cb3aa81a4da9d6c2/diff:/var/lib/docker/overlay2/dbff053a68cb853405d6bb37a7bf759d0339accb01b63882cd471ab2b8ca1989/diff:/var/lib/docker/overlay2/422dbe265e33617ef5ae32e4f0fa8c330fed23aa9366f699a74568003cc14c85/diff:/var/lib/docker/overlay2/bf041b8d900f0f548572fcbd5a85a95ea3f1e15e4c8c3f8d0ddcbdc6adca6e42/diff:/var/lib/docker/overlay2/ddee8b127b22713c581383f32ca94352095f46372fa601cf903c7954d84610c2/diff:/var/lib/docker/overlay2/78a6a24d71d6f4ea0fa5c65e3258165552e01cfb91177f75905f514978ae836a/diff", "MergedDir": "/var/lib/docker/overlay2/54518bbb5ecc78fb83d27843c9857c66d341646e235c8264a527d8d03bfade30/merged", "UpperDir": "/var/lib/docker/overlay2/54518bbb5ecc78fb83d27843c9857c66d341646e235c8264a527d8d03bfade30/diff", "WorkDir": "/var/lib/docker/overlay2/54518bbb5ecc78fb83d27843c9857c66d341646e235c8264a527d8d03bfade30/work" }, "Name": "overlay2" }, "Mounts": [], "Config": { "Hostname": "bb42c845a4ed", "Domainname": "", "User": "", "AttachStdin": false, "AttachStdout": false, "AttachStderr": false, "ExposedPorts": { "5000/tcp": {} }, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "PATH=/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "LANG=C.UTF-8", "GPG_KEY=0D96DF4D4110E5C43FBFB17F2D347EA6AA65421D", "PYTHON_VERSION=3.6.12", "PYTHON_PIP_VERSION=20.2.4", "PYTHON_GET_PIP_URL=https://github.com/pypa/get-pip/raw/fa7dc83944936bf09a0e4cb5d5ec852c0d256599/get-pip.py", "PYTHON_GET_PIP_SHA256=6e0bb0a2c2533361d7f297ed547237caf1b7507f197835974c0dd7eba998c53c" ], "Cmd": [ "python", "app.py" ], "ArgsEscaped": true, "Image": "ninesun0318/flask", "Volumes": null, "WorkingDir": "/app", "Entrypoint": null, "OnBuild": null, "Labels": { "maintainer": "ninesun0318<wangxucs123@126.com>" } }, "NetworkSettings": { "Bridge": "", "SandboxID": "83bb2e753efe2b317ee80f94ca7b3c0a668531a742a512a58f1d5c314eb4814f", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": { "5000/tcp": null }, "SandboxKey": "/var/run/docker/netns/83bb2e753efe", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "5ae0084aa81c630fa54778ad5f1368e0a7ed19a3e7042a7afd57995ebcd6ab2a", "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": "27fd76cd109c5917347b6b7df8b2f281abb5a14050875f947f4ada2ff3c8fb1e", "EndpointID": "5ae0084aa81c630fa54778ad5f1368e0a7ed19a3e7042a7afd57995ebcd6ab2a", "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 } } } } ]
六、查看容器的log
~]# docker logs bb42c845a4ed * Serving Flask app "app" (lazy loading) * Environment: production WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead. * Debug mode: off * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit) * Serving Flask app "app" (lazy loading) * Environment: production WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead. * Debug mode: off * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
七、docker 1.7.1 基本操作
由于OS的原因，安装的1.7版本的docker 部分命令和之前的不太一样 这里记录一下
7.1 恢复docker镜像
在可以访问外网的机器上pull一个镜像
]# docker save -o spug_image.docker registry.aliyuncs.com/openspug/spug
然后将spug_image.docker copy到需要运行的机器上去.
在另外一台机器上恢复
docker run -i -t ubuntu /bin/bash <镜像名称> /** **docker run参数** -a=map[]:附加标准输入、输出或者错误输出 -c=0：共享CPU格式（相对重要） -cidfile="":将容器的ID标识写入 -d=false:分离模式，在后台运行容器，并且打印出容器ID -e=[]：设置环境变量 -h=""：容器的主机名称 -i=false: 保持输入流开放即使没有附加输入流 -privileged=false: 给容器扩展的权限 -m="": 内存限制 (格式:<number><optional unit>, unit单位 = b, k, m or g -n=true: 允许镜像使用网络 -p=[]: 匹配镜像内的网络端口号 -rm=false:当容器退出时自动删除容器 (不能跟 -d一起使用) -t=false: 分配一个伪造的终端输入 -u="": 用户名或者ID -dns=[]: 自定义容器的DNS服务器 -v=[]: 创建一个挂载绑定：[host-dir]:[container-dir]:[rw|ro].如果容器目录丢失，docker会创建一个新的卷 -volumes-from="": 挂载容器所有的卷 -entrypoint="": 覆盖镜像设置默认的入口点 -w="": 工作目录内的容器 -lxc-conf=[]: 添加自定义-lxc-conf="lxc.cgroup.cpuset.cpus = 0,1" -sig-proxy=true: 代理接收所有进程信号(even in non-tty mode) -expose=[]: 让你主机没有开放的端口 -link="": 连接到另一个容器(name:alias) -name="": 分配容器的名称，如果没有指定就会随机生成一个 -P=false: Publish all exposed ports to thehost interfaces 公布所有显示的端口主机接口
docker load -i spug_image.docker
7.2 查看所有镜像
]#docker images REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE registry.aliyuncs.com/openspug/spug latest eebcf73e51a9 5 days ago 669.8 MB
7.3 启动容器
docker run -d --restart=always --name=spug -p 80:80 -v /home/spug/mydata/:/data registry.aliyuncs.com/openspug/spug
7.4 查看容器
]#docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 2f6051471ba9 registry.aliyuncs.com/openspug/spug "/entrypoint.sh" 20 hours ago Up 20 hours 0.0.0.0:80->80/tcp spug
7.5 重启容器
docker restart spug
