Docker（二） Docker日常

      首先，一幅图介绍Docker大部分命令

    

    查看当前运行的Docker容器

 

root@ubuntu:/home/ubuntu# docker ps

CONTAINER ID        IMAGE               COMMAND            

CREATED             STATUS              PORTS               NAMES

90c82634b319        centos:latest       "/bin/bash"        

5 days ago          Up 8 seconds  

    查看docker中所有容器 

root@ubuntu:/home/ubuntu# docker ps -a

CONTAINER ID        IMAGE                          COMMAND                  

CREATED             STATUS                      PORTS               NAMES

90c82634b319        centos:latest                  "/bin/bash"              

5 days ago          Exited (137) 44 hours ago                       centos_A

4729d5effff4        gitlab/gitlab-ce:8.17.8-ce.0   "/assets/wrapper"        

9 days ago          Exited (127) 25 hours ago                       dockercompose_gitlab_1

315ba96c82a9        jenkins:lx                     "/bin/sh -c 'java ..."   

9 days ago          Exited (137) 25 hours ago                       dockercompose_jenkins_1

15e4902f2c05        jenkins:lx                     "/bin/sh -c 'java ..."  

10 days ago         Exited (137) 9 days ago                         jenkins_lx

519f21589cbd        gitlab/gitlab-ce:8.17.8-ce.0   "/assets/wrapper"        

3 weeks ago         Exited (127) 9 days ago                         gitlab-ce

3729f67b3fbe        jenkins:latest                 "/bin/tini -- /usr..."   

4 weeks ago         Exited (143) 3 weeks ago                        jenkins

 

 

    登录当前运行的容器 exec  (不建议使用attach)

 

root@ubuntu:/home/ubuntu# docker exec -it 90c82634b319 /bin/bash 

[root@90c82634b319 /]#

 

    查看容器日志

 

root@ubuntu:/home/ubuntu# docker logs --tail='10' -f 4729d5effff4

 

  docker exec -it gitlab update-permissions

  docker restart gitlab

 

Preparing services...

Starting services...

 

    对于定制化修改后的容器可以提交到本地成为新的镜像并用于今后使用

root@ubuntu:/home/ubuntu# docker commit -m "xxxx" -a "lx" f2e96f81cbb8 centos_lx

 

    -m:记录提交信息            -a:记录提交作者

    查看镜像或容器的基本信息   暴露的端口  正在运行的容器的ip及网关 容器挂载的目录 

 

root@ubuntu:/home/ubuntu# docker inspect 90c82634b319

[

    {

        "Id": "90c82634b3195bd2f22669b3a9e682b77cb0a9746f158f86caec6ad4d553df33",

        "Created": "2017-12-23T08:17:48.551554878Z",

        "Path": "/bin/bash",

        "Args": [],

        "State": {

            "Status": "running",

            "Running": true,

            "Paused": false,

            "Restarting": false,

            "OOMKilled": false,

            "Dead": false,

            "Pid": 3577,

            "ExitCode": 0,

            "Error": "",

            "StartedAt": "2017-12-28T08:00:58.942294018Z",

            "FinishedAt": "2017-12-26T12:06:22.825993232Z"

        },

        "Driver": "aufs",

        "Platform": "linux",

        "MountLabel": "",

        "ProcessLabel": "",

        "AppArmorProfile": "docker-default",

        "ExecIDs": null,

        "HostConfig": {

        },

        "GraphDriver": {

            "Data": null,

            "Name": "aufs"

        },

        "Mounts": [],

        "Config": {

            "Env": [

                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

            ],

            "Cmd": [

                "/bin/bash"

            ],

            "ArgsEscaped": true,

            "Image": "centos:latest",

            "Volumes": null,

            "WorkingDir": "",

            "Entrypoint": null,

            "OnBuild": null,

            "Labels": {

                "build-date": "20170911",

                "license": "GPLv2",

                "name": "CentOS Base Image",

                "vendor": "CentOS"

            }

        },

        "NetworkSettings": {

 

            "IPAddress": "172.17.0.2",

            "IPPrefixLen": 16,

            "IPv6Gateway": "",

            "MacAddress": "02:42:ac:11:00:02",

            "Networks": {

                "bridge": {

                    "IPAMConfig": null,

                    "Links": null,

                    "Aliases": null,

                    "NetworkID": "b46c96d0dd8c4b99eaa784e7d89366d9c6a3a53533ba484dbbd458a09ba56f46",

                    "EndpointID": "9e2f9f21263f9b7029faa0a4036c22697d1f84794afb16fd87e1bc1d90dc260e",

                    "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

                }

            }

        }

    }

]

 

 

    指定docker容器ip地址  

 

root@ubuntu:/home/ubuntu# docker create -it --network bridge --ip 172.19.0.10 ubuntu:latest

59f79b073411e7ba28134d5f9189c873f3fb87894514c5aef175fdbe1c824f38

 

 

    此时创建容器未报错，但启动时报错

 

root@ubuntu:/home/ubuntu# docker start 59f79b073411

Error response from daemon: user specified IP address is supported on user defined networks only

Error: failed to start containers: 59f79b073411

 

   
    此时需要创建该容器所要使用的ip地址段

 

root@ubuntu:/home/ubuntu# docker network create --subnet=172.19.0.0/16 mynetwork

df0e14213f0552a9f6757f328d6acabb1ce7b9e8f203adcf7e44fcc4f945737f

 

     并重新创建容器  注意mynetwork

 

root@ubuntu:/home/ubuntu# docker network create --subnet=172.19.0.0/16 mynetwork

df0e14213f0552a9f6757f328d6acabb1ce7b9e8f203adcf7e44fcc4f945737f

  

root@ubuntu:/home/ubuntu# docker create -it --network mynetwork --ip 172.19.0.15 ubuntu:latest

c0875e07d9658ccafdc718ad9f2575176f4c6b556f2313f0d02c9e2b1500663f

root@ubuntu:/home/ubuntu# docker start c08

c08