1、帮助命令
（1）查看版本
[zhaihuabing@aubin ~]$ docker version Client: Docker Engine - Community Version: 19.03.13 API version: 1.40 Go version: go1.13.15 Git commit: 4484c46d9d Built: Wed Sep 16 17:03:45 2020 OS/Arch: linux/amd64 Experimental: false Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/dock
er.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/v1.40/version: dial unix /var/run/docker.sock: connect: permission denied
（2）查看信息
[root@aubin zhaihuabing]# docker info Client: Debug Mode: false Server: Containers: 1 Running: 0 Paused: 0 Stopped: 1 Images: 1 Server Version: 19.03.13 Storage Driver: overlay2 Backing Filesystem: xfs Supports d_type: true Native Overlay Diff: true Logging Driver: json-file Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host ipvlan macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog Swarm: inactive Runtimes: runc Default Runtime: runc Init Binary: docker-init containerd version: 8fba4e9a7d01810a393d5d25a3621dc101981175 runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd init version: fec3683 Security Options: seccomp Profile: default Kernel Version: 3.10.0-862.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 CPUs: 1 Total Memory: 1.716GiB Name: aubin.com ID: G75I:WTBP:DTBH:OE5X:2TBY:YSFU:IRWY:SQ6A:64TQ:LBPO:5FJD:EBZ5 Docker Root Dir: /var/lib/docker Debug Mode: false Registry: https://index.docker.io/v1/ Labels: Experimental: false Insecure Registries: 127.0.0.0/8 Registry Mirrors: https://xx6x4grv.mirror.aliyuncs.com/ Live Restore Enabled: false
2、镜像命令
（1）列出本地主机上的镜像
（2）列出本地所有的镜像
[root@aubin zhaihuabing]# docker images -a REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest bf756fb1ae65 9 months ago 13.3kB
（3）只显示镜像ID
[root@aubin zhaihuabing]# docker images -q
bf756fb1ae65
（4）显示镜像的摘要信息
[root@aubin zhaihuabing]# docker images --digests REPOSITORY TAG DIGEST IMAGE ID CREATED SIZE hello-world latest sha256:8c5aeeb6a5f3ba4883347d3747a7249f491766ca1caa47e5da5dfcf6b9b717c0 bf756fb1ae65 9 months ago 13.3kB
（5）显示完整的摘要信息
[root@aubin zhaihuabing]# docker images --no-trunc REPOSITORY TAG IMAGE ID CREATED SIZE hello-world latest sha256:bf756fb1ae65adf866bd8c456593cd24beb6a0a061dedf42b26a993176745f6b 9 months ago 13.3kB
（6）查找镜像
查找所有：
[root@aubin zhaihuabing]# docker search tomcat NAME DESCRIPTION STARS OFFICIAL AUTOMATED tomcat Apache Tomcat is an open source implementati… 2856 [OK] tomee Apache TomEE is an all-Apache Java EE certif… 83 [OK] dordoka/tomcat Ubuntu 14.04, Oracle JDK 8 and Tomcat 8 base… 55 [OK] bitnami/tomcat Bitnami Tomcat Docker Image 36 [OK] kubeguide/tomcat-app Tomcat image for Chapter 1 29 consol/tomcat-7.0 Tomcat 7.0.57, 8080, "admin/admin" 17 [OK] cloudesire/tomcat Tomcat server, 6/7/8 15 [OK] aallam/tomcat-mysql Debian, Oracle JDK, Tomcat & MySQL 13 [OK] arm32v7/tomcat Apache Tomcat is an open source implementati… 10 maluuba/tomcat7-java8 Tomcat7 with java8. 6 rightctrl/tomcat CentOS , Oracle Java, tomcat application ssl… 6 [OK] unidata/tomcat-docker Security-hardened Tomcat Docker container. 4 [OK] arm64v8/tomcat Apache Tomcat is an open source implementati… 2 amd64/tomcat Apache Tomcat is an open source implementati… 2 jelastic/tomcat An image of the Tomcat Java application serv… 2 99taxis/tomcat7 Tomcat7 1 [OK] cfje/tomcat-resource Tomcat Concourse Resource 1 camptocamp/tomcat-logback Docker image for tomcat with logback integra… 1 [OK] chenyufeng/tomcat-centos tomcat基于centos6的镜像 1 [OK] ppc64le/tomcat Apache Tomcat is an open source implementati… 1 oobsri/tomcat8 Testing CI Jobs with different names. 1 softwareplant/tomcat Tomcat images for jira-cloud testing 0 [OK] picoded/tomcat7 tomcat7 with jre8 and MANAGER_USER / MANAGER… 0 [OK] secoresearch/tomcat-varnish Tomcat and Varnish 5.0 0 [OK] s390x/tomcat Apache Tomcat is an open source implementati… 0
按照点赞数查找（点赞数超过300）：
[root@aubin zhaihuabing]# docker search -s 300 tomcat Flag --stars has been deprecated, use --filter=stars=3 instead NAME DESCRIPTION STARS OFFICIAL AUTOMATED tomcat Apache Tomcat is an open source implementati… 2856 [OK]
（7）拉取一个镜像（默认是最新版本）
（8）删除
[root@aubin zhaihuabing]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE tomcat latest 891fcd9c5b3a 8 days ago 647MB hello-world latest bf756fb1ae65 9 months ago 13.3kB [root@aubin zhaihuabing]# docker rmi hello-world Error response from daemon: conflict: unable to remove repository reference "hello-world" (must force) - container bc1eb5ae64a3 is using its referenced image bf756fb1ae65 [root@aubin zhaihuabing]# docker rmi -f hello-world Untagged: hello-world:latest Untagged: hello-world@sha256:8c5aeeb6a5f3ba4883347d3747a7249f491766ca1caa47e5da5dfcf6b9b717c0 Deleted: sha256:bf756fb1ae65adf866bd8c456593cd24beb6a0a061dedf42b26a993176745f6b [root@aubin zhaihuabing]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE tomcat latest 891fcd9c5b3a 8 days ago 647MB
3、容器命令
（1）拉取一个centos
[root@aubin zhaihuabing]# docker pull centos Using default tag: latest latest: Pulling from library/centos 3c72a8ed6814: Pull complete Digest: sha256:76d24f3ba3317fa945743bb3746fbaf3a0b752f10b10376960de01da70685fbd Status: Downloaded newer image for centos:latest docker.io/library/centos:latest
这个centos是在docker中运行的，与虚拟机上运行的centos是不一样的，因为容器是一个简易版的
（2）运行centos
查看进程：
[root@aubin zhaihuabing]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c97f6b1619c6 0d120b6ccaa8 "/bin/bash" 4 minutes ago Up 4 minutes stoic_cartwright
（3）退出容器
关闭容器并退出：
[root@c97f6b1619c6 /]# exit
exit
[root@aubin zhaihuabing]#
查看进程：
[root@aubin zhaihuabing]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
查看历史容器记录：
[root@aubin zhaihuabing]# docker ps -l CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c97f6b1619c6 0d120b6ccaa8 "/bin/bash" 9 minutes ago Exited (127) About a minute ago stoic_cartwright [root@aubin zhaihuabing]#
（4）容器别名
[root@aubin zhaihuabing]# docker run -it --name 2020zhaihuabing centos
查看：
[root@aubin zhaihuabing]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 02efa6625c43 centos "/bin/bash" 37 seconds ago Up 34 seconds 2020zhaihuabing
（5）退出但是不关闭
ctrl+p+q
查看进程，进程依旧存在：
[root@aubin zhaihuabing]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 02efa6625c43 centos "/bin/bash" 4 minutes ago Up 4 minutes 2020zhaihuabing
（6）守护方式启动（后台运行）
[root@aubin zhaihuabing]# docker run -d centos
892d78a363b0bb3659b765085618d335cbb4459bf7710fbfa2f45ff3a9bf5864
（7）以json的格式显示容器信息
[root@aubin zhaihuabing]# docker inspect f51ae14801c4 [ { "Id": "f51ae14801c495aa4175ef7ab2ec06c668cbc87351f0a37eb903a1255b4da6fe", "Created": "2020-10-22T08:41:03.199497107Z", "Path": "/bin/bash", "Args": [], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 57202, "ExitCode": 0, "Error": "", "StartedAt": "2020-10-22T08:41:04.280774452Z", "FinishedAt": "0001-01-01T00:00:00Z" }, "Image": "sha256:0d120b6ccaa8c5e149176798b3501d4dd1885f961922497cd0abef155c869566", "ResolvConfPath": "/var/lib/docker/containers/f51ae14801c495aa4175ef7ab2ec06c668cbc87351f0a37eb903a1255b4da6fe/resolv.conf", "HostnamePath": "/var/lib/docker/containers/f51ae14801c495aa4175ef7ab2ec06c668cbc87351f0a37eb903a1255b4da6fe/hostname", "HostsPath": "/var/lib/docker/containers/f51ae14801c495aa4175ef7ab2ec06c668cbc87351f0a37eb903a1255b4da6fe/hosts", "LogPath": "/var/lib/docker/containers/f51ae14801c495aa4175ef7ab2ec06c668cbc87351f0a37eb903a1255b4da6fe/f51ae14801c495aa4175ef7ab2ec06c668cbc87351f0a37eb903a1255b4da6fe-json.log", "Name": "/jolly_perlman", "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/overlay2/5289975d8f2a43847ef4158ac6d8cbe13764c39997dd38519f35bbbf5065dee5-init/diff:/var/lib/docker/overlay2/8877a450ded8d6ab9c3a2afe8055e541cb64ea025c742836ba7a07f8c408b6a3/diff", "MergedDir": "/var/lib/docker/overlay2/5289975d8f2a43847ef4158ac6d8cbe13764c39997dd38519f35bbbf5065dee5/merged", "UpperDir": "/var/lib/docker/overlay2/5289975d8f2a43847ef4158ac6d8cbe13764c39997dd38519f35bbbf5065dee5/diff", "WorkDir": "/var/lib/docker/overlay2/5289975d8f2a43847ef4158ac6d8cbe13764c39997dd38519f35bbbf5065dee5/work" }, "Name": "overlay2" }, "Mounts": [], "Config": { "Hostname": "f51ae14801c4", "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": "20200809", "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": "d5d512e039244da356feac706eeb5a38a04ed5e2917c6ce8290ac3491a88cf28", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": {}, "SandboxKey": "/var/run/docker/netns/d5d512e03924", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "d99f836b72f7fde9765c3f7876b5fdb77418bfe59caa54a50d8bcf115e44d74e", "Gateway": "172.17.0.1", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "MacAddress": "02:42:ac:11:00:03", "Networks": { "bridge": { "IPAMConfig": null, "Links": null, "Aliases": null, "NetworkID": "e0f7a0b462b78f38895dc255df617fecaab09c6a9fe868022519fd818f4b4167", "EndpointID": "d99f836b72f7fde9765c3f7876b5fdb77418bfe59caa54a50d8bcf115e44d74e", "Gateway": "172.17.0.1", "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:11:00:03", "DriverOpts": null } } } } ] [root@aubin zhaihuabing]