docker操作使用注意事项

一、运行docker

该命令执行后是在窗口下运行的，关闭或退出后docker应用会停止运行

• -p：设置绑定端口映射，10022对应服务器主机的端口，22docker容器内部使用的端口
• -v：设置硬盘路径映射，/var/gogs对应服务器主机的本地路径，/datadocker容器内部路径

docker run --name=gogs -p 10022:22 -p 4040:3000 -v /var/gogs:/data gogs/gogs

想要在后台自动运行，需要先退出再重新执行以下命令运行

docker start gogs

二、拉取的镜像存放位置

通过docker pull <image_name>拉取的镜像存放位置可以通过docker inspect <image_id_or_name>查询，<image_id_or_name>可以通过docker images查询。

1、查询所有拉取的镜像

root@VM-8-14-ubuntu:~/serverRoom/php-tcp-sever# docker images
REPOSITORY                       TAG       IMAGE ID       CREATED         SIZE
gogs/gogs                        latest    21845f737745   4 days ago      96.3MB
emqx/emqx                        latest    f9a9d20bd75c   2 months ago    476MB

2、查询所有安装的镜像

root@VM-8-14-ubuntu:~/serverRoom/php-tcp-sever# docker ps
CONTAINER ID   IMAGE                      COMMAND                  CREATED        STATUS                       PORTS                                                                                                                                                                                NAMES
d023f87b6eb4   gogs/gogs                  "/app/gogs/docker/st…"   3 hours ago    Up About an hour (healthy)   0.0.0.0:10022->22/tcp, :::10022->22/tcp, 0.0.0.0:4040->3000/tcp, :::4040->3000/tcp                                                                                                   gogs

3、查询docker应用的所有信息

根据安装了的镜像CONTAINER ID或者查询所有信息
GraphDriver.Data.MergedDir就是镜像源码的存放位置。
"MergedDir": "/var/lib/docker/overlay2/41f348c7a3ba0e8e6cb3e80f4d0eb57a6bee24ad3fb0ed0a1f07e744f716a93c/merged"

root@VM-8-14-ubuntu:~/serverRoom/php-tcp-sever# docker inspect d023f87b6eb4
[{"Id": "d023f87b6eb4baa5c0b29cb623f8ec5e36ee0b68ee6fcc2cf8296bdb976c6f35","Created": "2024-05-07T09:14:57.946249331Z","Path": "/app/gogs/docker/start.sh","Args": ["/bin/s6-svscan","/app/gogs/docker/s6/"],"State": {"Status": "running","Running": true,"Paused": false,"Restarting": false,"OOMKilled": false,"Dead": false,"Pid": 406048,"ExitCode": 0,"Error": "","StartedAt": "2024-05-07T10:27:37.77905239Z","FinishedAt": "2024-05-07T10:16:15.479531053Z","Health": {"Status": "healthy","FailingStreak": 0,"Log": [{"Start": "2024-05-07T19:49:56.581570171+08:00","End": "2024-05-07T19:49:56.706273355+08:00","ExitCode": 0,"Output": ""},{"Start": "2024-05-07T19:50:26.713392214+08:00","End": "2024-05-07T19:50:26.819860891+08:00","ExitCode": 0,"Output": ""},{"Start": "2024-05-07T19:50:56.825711508+08:00","End": "2024-05-07T19:50:56.944669519+08:00","ExitCode": 0,"Output": ""},{"Start": "2024-05-07T19:51:26.950790738+08:00","End": "2024-05-07T19:51:27.055347625+08:00","ExitCode": 0,"Output": ""},{"Start": "2024-05-07T19:51:57.063173881+08:00","End": "2024-05-07T19:51:57.192940528+08:00","ExitCode": 0,"Output": ""}]}},"Image": "sha256:21845f737745e6ff53e802f6603979e2182ea50aeac3ee04a6acd4d526ef931a","ResolvConfPath": "/var/lib/docker/containers/d023f87b6eb4baa5c0b29cb623f8ec5e36ee0b68ee6fcc2cf8296bdb976c6f35/resolv.conf","HostnamePath": "/var/lib/docker/containers/d023f87b6eb4baa5c0b29cb623f8ec5e36ee0b68ee6fcc2cf8296bdb976c6f35/hostname","HostsPath": "/var/lib/docker/containers/d023f87b6eb4baa5c0b29cb623f8ec5e36ee0b68ee6fcc2cf8296bdb976c6f35/hosts","LogPath": "/var/lib/docker/containers/d023f87b6eb4baa5c0b29cb623f8ec5e36ee0b68ee6fcc2cf8296bdb976c6f35/d023f87b6eb4baa5c0b29cb623f8ec5e36ee0b68ee6fcc2cf8296bdb976c6f35-json.log","Name": "/gogs","RestartCount": 0,"Driver": "overlay2","Platform": "linux","MountLabel": "","ProcessLabel": "","AppArmorProfile": "docker-default","ExecIDs": null,"HostConfig": {"Binds": ["/var/gogs:/data"],"ContainerIDFile": "","LogConfig": {"Type": "json-file","Config": {}},"NetworkMode": "default","PortBindings": {"22/tcp": [{"HostIp": "","HostPort": "10022"}],"3000/tcp": [{"HostIp": "","HostPort": "4040"}]},"RestartPolicy": {"Name": "no","MaximumRetryCount": 0},"AutoRemove": false,"VolumeDriver": "","VolumesFrom": null,"ConsoleSize": [52,116],"CapAdd": null,"CapDrop": null,"CgroupnsMode": "private","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","Isolation": "","CpuShares": 0,"Memory": 0,"NanoCpus": 0,"CgroupParent": "","BlkioWeight": 0,"BlkioWeightDevice": [],"BlkioDeviceReadBps": [],"BlkioDeviceWriteBps": [],"BlkioDeviceReadIOps": [],"BlkioDeviceWriteIOps": [],"CpuPeriod": 0,"CpuQuota": 0,"CpuRealtimePeriod": 0,"CpuRealtimeRuntime": 0,"CpusetCpus": "","CpusetMems": "","Devices": [],"DeviceCgroupRules": null,"DeviceRequests": null,"MemoryReservation": 0,"MemorySwap": 0,"MemorySwappiness": null,"OomKillDisable": null,"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","/sys/devices/virtual/powercap"],"ReadonlyPaths": ["/proc/bus","/proc/fs","/proc/irq","/proc/sys","/proc/sysrq-trigger"]},"GraphDriver": {"Data": {"LowerDir": "/var/lib/docker/overlay2/41f348c7a3ba0e8e6cb3e80f4d0eb57a6bee24ad3fb0ed0a1f07e744f716a93c-init/diff:/var/lib/docker/overlay2/9e1f6e9363b1f4a4d8cf2bddf07a1bd1bfec8b03304f7b6b1db23a4bd61ea466/diff:/var/lib/docker/overlay2/a4e64ed0e87b6ad07f982695ff1b4f364e8390d74fb47919d0df6cc88624e4db/diff:/var/lib/docker/overlay2/7482a5a7c490ad27f0884996c79568b74eb6f925facf27d8e776b5892b64b62e/diff:/var/lib/docker/overlay2/35a99c4d785ab48feb959eb1dd648202b5db495410523b6422805972261d2e4a/diff:/var/lib/docker/overlay2/e732670c33c63faedb2a9599f3221b43f647ea3ef35da3a8e1228f4b3b595db7/diff:/var/lib/docker/overlay2/218ebe1c3afd8e28bef7d83ad6b8cf0d1e4061d372ba585fe8bdba0d15b0da8f/diff:/var/lib/docker/overlay2/0cf2d64807c638ab77fbd5210149cdfa9243ea65e5b03e0349c37fc4af860efb/diff","MergedDir": "/var/lib/docker/overlay2/41f348c7a3ba0e8e6cb3e80f4d0eb57a6bee24ad3fb0ed0a1f07e744f716a93c/merged","UpperDir": "/var/lib/docker/overlay2/41f348c7a3ba0e8e6cb3e80f4d0eb57a6bee24ad3fb0ed0a1f07e744f716a93c/diff","WorkDir": "/var/lib/docker/overlay2/41f348c7a3ba0e8e6cb3e80f4d0eb57a6bee24ad3fb0ed0a1f07e744f716a93c/work"},"Name": "overlay2"},"Mounts": [{"Type": "bind","Source": "/var/gogs","Destination": "/data","Mode": "","RW": true,"Propagation": "rprivate"},{"Type": "volume","Name": "e8298a4a438e316cccce46bf412f0fd89bce24a2c5eb90c7dbb8f3b0c0bf38f9","Source": "/var/lib/docker/volumes/e8298a4a438e316cccce46bf412f0fd89bce24a2c5eb90c7dbb8f3b0c0bf38f9/_data","Destination": "/backup","Driver": "local","Mode": "","RW": true,"Propagation": ""}],"Config": {"Hostname": "d023f87b6eb4","Domainname": "","User": "","AttachStdin": false,"AttachStdout": true,"AttachStderr": true,"ExposedPorts": {"22/tcp": {},"3000/tcp": {}},"Tty": false,"OpenStdin": false,"StdinOnce": false,"Env": ["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","GOGS_CUSTOM=/data/gogs"],"Cmd": ["/bin/s6-svscan","/app/gogs/docker/s6/"],"Healthcheck": {"Test": ["CMD-SHELL","(curl -o /dev/null -sS http://localhost:3000/healthcheck) || exit 1"]},"Image": "gogs/gogs","Volumes": {"/backup": {},"/data": {}},"WorkingDir": "/app/gogs","Entrypoint": ["/app/gogs/docker/start.sh"],"OnBuild": null,"Labels": {}},"NetworkSettings": {"Bridge": "","SandboxID": "ef26a7941304802f77dfcae88645b78b7d91cd0ad44156dc7a358ca0d46ee5b4","HairpinMode": false,"LinkLocalIPv6Address": "","LinkLocalIPv6PrefixLen": 0,"Ports": {"22/tcp": [{"HostIp": "0.0.0.0","HostPort": "10022"},{"HostIp": "::","HostPort": "10022"}],"3000/tcp": [{"HostIp": "0.0.0.0","HostPort": "4040"},{"HostIp": "::","HostPort": "4040"}]},"SandboxKey": "/var/run/docker/netns/ef26a7941304","SecondaryIPAddresses": null,"SecondaryIPv6Addresses": null,"EndpointID": "4bd53f49ad6b422e464b14686f4c4c3651847bcc5863f36084b10c558e3540a1","Gateway": "172.17.0.1","GlobalIPv6Address": "","GlobalIPv6PrefixLen": 0,"IPAddress": "172.17.0.6","IPPrefixLen": 16,"IPv6Gateway": "","MacAddress": "02:42:ac:11:00:06","Networks": {"bridge": {"IPAMConfig": null,"Links": null,"Aliases": null,"NetworkID": "ecedf197380b9ae10d7f8a0834a702693fcd2c3f0dea7f9d2e9ef0bfbda89896","EndpointID": "4bd53f49ad6b422e464b14686f4c4c3651847bcc5863f36084b10c558e3540a1","Gateway": "172.17.0.1","IPAddress": "172.17.0.6","IPPrefixLen": 16,"IPv6Gateway": "","GlobalIPv6Address": "","GlobalIPv6PrefixLen": 0,"MacAddress": "02:42:ac:11:00:06","DriverOpts": null}}}}
]