帮助命令

docker version            #显示docker的版本信息
docker info                    #显示docker的系统信息,包括镜像和容器的数量
docker 命令 --help  #帮助命令

帮助文档地址: https://docs.docker.com/engine/reference/commandline/

镜像命令

REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
hello-world   latest    feb5d9fea6a5   8 months ago   13.3kB
centos        latest    5d0da3dc9764   8 months ago   231MB
#解释
REPOSITORY            镜像的仓库源
TAG                            镜像的标签
IMAGE ID                镜像的ID
CREATED                    镜像的创建时间
SIZE                        镜像的大小
#可选项
  -a,    --all            #列出所有镜像
  -q, --quiiet    #只显示镜像的ID

[root@VM-24-6-centos ~]# docker search mysql
NAME                           DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
mysql                          MySQL is a widely used, open-source relation…   12716     [OK]       
mariadb                        MariaDB Server is a high performing open sou…   4882      [OK]       
#可选项,通过搜索来过滤
--filter=STARS=3000    #搜索出来的镜像就是STARS大于3000的

#下载镜像 docker pull 镜像名[:tag]
[root@VM-24-6-centos ~]# docker pull mysql
Using default tag: latest #如果不写 tag 则默是 latest
latest: Pulling from library/mysql
72a69066d2fe: Pull complete         #分层下载,docker iamge的核心 联合文件系统
93619dbc5b36: Pull complete 
99da31dd6142: Pull complete 
626033c43d70: Pull complete 
37d5d7efb64e: Pull complete 
ac563158d721: Pull complete 
d2ba16033dad: Pull complete 
688ba7d5c01a: Pull complete 
00e060b6d11d: Pull complete 
1c04857f594f: Pull complete 
4d7cfa90e6ea: Pull complete 
e0431212d27d: Pull complete 
Digest: sha256:e9027fe4d91c0153429607251656806cc784e914937271037f7738bd5b8e7709 #签名
Status: Downloaded newer image for mysql:latest
docker.io/library/mysql:latest #真实地址
#等价于它
docker pull mysql
docker.io/library/mysql:latest
#指定版本下载
[root@VM-24-6-centos ~]# clear
[root@VM-24-6-centos ~]# docker pull mysql:5.7
5.7: Pulling from library/mysql
72a69066d2fe: Already exists 
93619dbc5b36: Already exists 
99da31dd6142: Already exists 
626033c43d70: Already exists 
37d5d7efb64e: Already exists 
ac563158d721: Already exists 
d2ba16033dad: Already exists 
0ceb82207cd7: Pull complete 
37f2405cae96: Pull complete 
e2482e017e53: Pull complete 
70deed891d42: Pull complete 
Digest: sha256:f2ad209efe9c67104167fc609cca6973c8422939491c9345270175a300419f94
Status: Downloaded newer image for mysql:5.7
docker.io/library/mysql:5.7

[root@VM-24-6-centos ~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
mysql         5.7       c20987f18b13   5 months ago   448MB
mysql         latest    3218b38490ce   5 months ago   516MB
hello-world   latest    feb5d9fea6a5   8 months ago   13.3kB
centos        latest    5d0da3dc9764   8 months ago   231MB
[root@VM-24-6-centos ~]# docker rmi -f c20987f18b13
Untagged: mysql:5.7
Untagged: mysql@sha256:f2ad209efe9c67104167fc609cca6973c8422939491c9345270175a300419f94
Deleted: sha256:c20987f18b130f9d144c9828df630417e2a9523148930dc3963e9d0dab302a76
Deleted: sha256:6567396b065ee734fb2dbb80c8923324a778426dfd01969f091f1ab2d52c7989
Deleted: sha256:0910f12649d514b471f1583a16f672ab67e3d29d9833a15dc2df50dd5536e40f
Deleted: sha256:6682af2fb40555c448b84711c7302d0f86fc716bbe9c7dc7dbd739ef9d757150
Deleted: sha256:5c062c3ac20f576d24454e74781511a5f96739f289edaadf2de934d06e910b92
 #删除全部镜像
[root@VM-24-6-centos ~]# docker rmi -f $(docker images -qa)
Untagged: mysql:latest
Untagged: mysql@sha256:e9027fe4d91c0153429607251656806cc784e914937271037f7738bd5b8e7709
Deleted: sha256:3218b38490cec8d31976a40b92e09d61377359eab878db49f025e5d464367f3b
Deleted: sha256:aa81ca46575069829fe1b3c654d9e8feb43b4373932159fe2cad1ac13524a2f5
Deleted: sha256:0558823b9fbe967ea6d7174999be3cc9250b3423036370dc1a6888168cbd224d
Deleted: sha256:a46013db1d31231a0e1bac7eeda5ad4786dea0b1773927b45f92ea352a6d7ff9
Deleted: sha256:af161a47bb22852e9e3caf39f1dcd590b64bb8fae54315f9c2e7dc35b025e4e3
Deleted: sha256:feff1495e6982a7e91edc59b96ea74fd80e03674d92c7ec8a502b417268822ff
Deleted: sha256:8805862fcb6ef9deb32d4218e9e6377f35fb351a8be7abafdf1da358b2b287ba
Deleted: sha256:872d2f24c4c64a6795e86958fde075a273c35c82815f0a5025cce41edfef50c7
Deleted: sha256:6fdb3143b79e1be7181d32748dd9d4a845056dfe16ee4c827410e0edef5ad3da
Deleted: sha256:b0527c827c82a8f8f37f706fcb86c420819bb7d707a8de7b664b9ca491c96838
Deleted: sha256:75147f61f29796d6528486d8b1f9fb5d122709ea35620f8ffcea0e0ad2ab0cd0
Deleted: sha256:2938c71ddf01643685879bf182b626f0a53b1356138ef73c40496182e84548aa
Deleted: sha256:ad6b69b549193f81b039a1d478bc896f6e460c77c1849a4374ab95f9a3d2cea2
Untagged: hello-world:latest
Untagged: hello-world@sha256:2498fce14358aa50ead0cc6c19990fc6ff866ce72aeb5546e1d59caac3d0d60f
Deleted: sha256:feb5d9fea6a5e9606aa995e879d862b825965ba48de054caab5ef356dc6b3412
Untagged: centos:latest
Untagged: centos@sha256:a27fd8080b517143cbbbab9dfb7c8571c40d67d534bbdee55bd6c473f432b177
Deleted: sha256:5d0da3dc976460b72c77d94c8a1ad043720b0416bfc16c52c45d4847e53fadb6
Deleted: sha256:74ddd0ec08fa43d09f32636ba91a0a3053b02cb4627c35051aff89f853606b59
docker rmi -f 容器ID #删除指定容器
docker rmi -f 容器ID 容器ID 容器ID 容器ID #删除多个容器
docker rmi -f $(docker imgaes -aq)    #删除全部的容器

docker save 镜像id

docker load 镜像id
-i 从本路路径读取镜像包
-q 精简输出信息

容器命令

说明:我们有了镜像才可以创建容器,lunux,下载一个centos镜像来测试学习
docker pull centos

docker run [可选参数]    image

#参数说明
--name="Name"            容器名字 tomcat01        tomcat02 ,用来区分容器
-d                                后台方式运行
-it                                使用交互方式运行,进入容器查看内容
-p                                指定容器的端口 -p 8080:8080
    -p                      IP: 主机端口:容器端口
    -p                        主机端口:容器端口 (常用)
    -p                        容器端口
    容器端口
-p                                随机指定端口

#测试,并进入容器
[root@VM-24-6-centos ~]# docker run -it centos /bin/bash
[root@9e1ec2882736 /]# ls 
bin  etc   lib      lost+found  mnt  proc  run   srv  tmp  var
dev  home  lib64  media       opt  root  sbin  sys  usr
[root@9e1ec2882736 /]# 

#从容器中退回到主机
[root@9e1ec2882736 /]# exit
exit
[root@VM-24-6-centos ~]#

-a #累出当前正在运行的容器+历史运行过的容器
-n=? #显示最近创建的容器
-q   #只显示容器的编号
[root@VM-24-6-centos ~]# docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
[root@VM-24-6-centos ~]# docker ps -a
CONTAINER ID   IMAGE          COMMAND       CREATED              STATUS                          PORTS     NAMES
9e1ec2882736   centos         "/bin/bash"   About a minute ago   Exited (0) About a minute ago             lucid_keller
8c8bfe679499   feb5d9fea6a5   "/hello"      53 minutes ago       Exited (0) 53 minutes ago                 vigilant_jang
[root@VM-24-6-centos ~]# docker ps -q
[root@VM-24-6-centos ~]# docker ps -qa
9e1ec2882736
8c8bfe679499
[root@VM-24-6-centos ~]#

exit #直接退出容器并停止
Ctrl + P + Q #容器不停止并退出

docker rm 容器id                                #删除单个容器,不能删除正在运行的容器,除非使用rm -rf
docker rm -f $(docker ps -aq)        #删除所有容器
docker rm -a -q|xargs docker rm #删除所有容器

docker start 容器ID            #启动容器
docker restart 容器ID        #重启容器
docker kill   容器ID        #杀死容器
docker stop   容器ID        #暂停容器

其他常用命令

#命令  docker run -d 镜像名
[root@VM-24-6-centos ~]# docker run -d centos
dd2000d9a934df7d95ba1ebc3afccbf6889e4510494b2bf8ec4c81b81ce40526

#问题:docker ps 发现centos停止了

#坑:docker 容器后台使用的时候,容器内必须有一个前台进程.如果没前台进程docker就会自动停止该容器
#nginx,容器启动后,发现自己没有提供服务,就会立即停止

docker logs -ft --tail [条数]    [容器ID]
-tf                #显示日志
--tail number #要显示的日志条数

top命令
docker top 容器ID

查看镜像元数据
docker inspect
[root@VM-24-6-centos ~]# docker inspect d7ebeb0673fa
[
    {
        "Id": "d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c",
        "Created": "2022-06-13T05:44:46.949708415Z",
        "Path": "/bin/bash",
        "Args": [],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 5948,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2022-06-13T05:44:47.224749943Z",
            "FinishedAt": "0001-01-01T00:00:00Z"
        },
        "Image": "sha256:5d0da3dc976460b72c77d94c8a1ad043720b0416bfc16c52c45d4847e53fadb6",
        "ResolvConfPath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/hostname",
        "HostsPath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/hosts",
        "LogPath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c-json.log",
        "Name": "/musing_meitner",
        "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,
            "CgroupnsMode": "host",
            "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/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367-init/diff:/var/lib/docker/overlay2/65fec22ab97113dcdabce8282dd2ec302867ef45c25adc586deaa731d4ed3087/diff",
                "MergedDir": "/var/lib/docker/overlay2/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367/merged",
                "UpperDir": "/var/lib/docker/overlay2/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367/diff",
                "WorkDir": "/var/lib/docker/overlay2/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "d7ebeb0673fa",
            "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": "20210915",
                "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": "bad963131fa0cca817beef580c2f67696c1f6cf52b6c2588eec0a68355bc964f",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/bad963131fa0",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "8aa1490a07700cbb1f3e687b797a2b2c531f826c7a8e89099bcf0189f5d6324f",
            "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": "9df546b56e81d2749891fa37b51db086a1126e3a2744b19e9188abd78f537e0d",
                    "EndpointID": "8aa1490a07700cbb1f3e687b797a2b2c531f826c7a8e89099bcf0189f5d6324f",
                    "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
                }
            }
        }
    }
]

docker inspect 镜像ID
[root@VM-24-6-centos ~]# docker inspect d7ebeb0673fa
[
    {
        "Id": "d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c",
        "Created": "2022-06-13T05:44:46.949708415Z",
        "Path": "/bin/bash",
        "Args": [],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 5948,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2022-06-13T05:44:47.224749943Z",
            "FinishedAt": "0001-01-01T00:00:00Z"
        },
        "Image": "sha256:5d0da3dc976460b72c77d94c8a1ad043720b0416bfc16c52c45d4847e53fadb6",
        "ResolvConfPath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/resolv.conf",
        "HostnamePath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/hostname",
        "HostsPath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/hosts",
        "LogPath": "/var/lib/docker/containers/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c/d7ebeb0673fa21c3b732d9c8ad0d63e46efa6fb042905bf2668b021a671a336c-json.log",
        "Name": "/musing_meitner",
        "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,
            "CgroupnsMode": "host",
            "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/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367-init/diff:/var/lib/docker/overlay2/65fec22ab97113dcdabce8282dd2ec302867ef45c25adc586deaa731d4ed3087/diff",
                "MergedDir": "/var/lib/docker/overlay2/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367/merged",
                "UpperDir": "/var/lib/docker/overlay2/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367/diff",
                "WorkDir": "/var/lib/docker/overlay2/c10d73b4e28a79efd479facf0e40f42915f0ca4d5aefe8d33765205eaefbd367/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [],
        "Config": {
            "Hostname": "d7ebeb0673fa",
            "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": "20210915",
                "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": "bad963131fa0cca817beef580c2f67696c1f6cf52b6c2588eec0a68355bc964f",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/run/docker/netns/bad963131fa0",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "8aa1490a07700cbb1f3e687b797a2b2c531f826c7a8e89099bcf0189f5d6324f",
            "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": "9df546b56e81d2749891fa37b51db086a1126e3a2744b19e9188abd78f537e0d",
                    "EndpointID": "8aa1490a07700cbb1f3e687b797a2b2c531f826c7a8e89099bcf0189f5d6324f",
                    "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
                }
            }
        }
    }
]

#我通常容器都是使用后台方式运行的,需要进入容器,修改一些配置

#命令
docker exec -it 容器ID bash/shell
#测试
[root@VM-24-6-centos ~]# docker ps
CONTAINER ID   IMAGE     COMMAND       CREATED         STATUS         PORTS     NAMES
d7ebeb0673fa   centos    "/bin/bash"   3 minutes ago   Up 3 minutes             musing_meitner
[root@VM-24-6-centos ~]# docker exec -it d7ebeb0673fa bash
[root@d7ebeb0673fa /]# 

#方式二:
docker attach 容器ID
#测试
[root@VM-24-6-centos ~]# docker ps 
CONTAINER ID   IMAGE     COMMAND       CREATED         STATUS         PORTS     NAMES
d7ebeb0673fa   centos    "/bin/bash"   4 minutes ago   Up 4 minutes             musing_meitner
[root@VM-24-6-centos ~]# docker attach d7ebeb0673fa
[root@d7ebeb0673fa /]# #正在执行的当前代码

#docker exec #进入容器后开启一个新的终端,可以在里面擦欧总
#docker attach #进入容器正在执行的终端,不会启动新的进程

docker cp 容器ID:容器内路径 目的主机路径

#进入docker容器内
[root@VM-24-6-centos ~]# docker attach d7ebeb0673fa
[root@d7ebeb0673fa /]# cd /home 
[root@d7ebeb0673fa home]# ls

#在容器内新建文件
[root@d7ebeb0673fa home]# touch 1.java
[root@d7ebeb0673fa home]# exit
exit
[root@VM-24-6-centos ~]# docker ps
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
[root@VM-24-6-centos ~]# docker ps -a
CONTAINER ID   IMAGE          COMMAND       CREATED         STATUS                      PORTS     NAMES
d7ebeb0673fa   centos         "/bin/bash"   8 minutes ago   Exited (0) 11 seconds ago             musing_meitner
dd2000d9a934   centos         "/bin/bash"   14 hours ago    Exited (0) 14 hours ago               practical_ganguly
9e1ec2882736   centos         "/bin/bash"   17 hours ago    Exited (0) 17 hours ago               lucid_keller
8c8bfe679499   feb5d9fea6a5   "/hello"      18 hours ago    Exited (0) 18 hours ago               vigilant_jang

#将文件拷贝出来到主机
[root@VM-24-6-centos ~]# docker cp d7ebeb0673fa:/home/1.java /home
[root@VM-24-6-centos ~]# cd /home
[root@VM-24-6-centos home]# ls
1.java  lighthouse  n9e  shelltest

#拷贝是一个手动过程,未来我们使用 -V 卷技术 ,可以实现自动同步 /home /home

docker

Docker的常用命令

帮助命令

镜像命令

容器命令

其他常用命令

小结