7、常用其它命令
作者：互联网
常用其它命令
后台启动容器
# docker run -d 镜像名
#问题 docker ps，发现centos停止了
#常见的坑：docker容器使用后台运行，就必须要有一个前台进程，docker发现没有应用，就会自动停止
查看日志命令
# docker logs
查看容器进程信息
# docker top 容器ID
[root@iZ2zee7khd9swlno7xr3hsZ ~]# docker top 979510c756a5
UID PID PPID C STIME TTY TIME CMD
root 22334 22314 0 13:02 pts/0 00:00:00 /bin/bash
查看镜像元数据
# docker inspect 容器ID
[root@iZ2zee7khd9swlno7xr3hsZ ~]# docker inspect 979510c756a5
[
{
"Id": "979510c756a56364d0478ece4719f3817ee21d56b336f23ee9edd265ee5d9c3d",
"Created": "2021-08-30T04:41:21.362563633Z",
"Path": "/bin/bash",
"Args": [],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 22334,
"ExitCode": 0,
"Error": "",
"StartedAt": "2021-08-30T05:02:52.952364915Z",
"FinishedAt": "2021-08-30T04:42:18.819139088Z"
},
"Image": "sha256:300e315adb2f96afe5f0b2780b87f28ae95231fe3bdd1e16b9ba606307728f55",
"ResolvConfPath": "/var/lib/docker/containers/979510c756a56364d0478ece4719f3817ee21d56b336f23ee9edd265ee5d9c3d/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/979510c756a56364d0478ece4719f3817ee21d56b336f23ee9edd265ee5d9c3d/hostname",
"HostsPath": "/var/lib/docker/containers/979510c756a56364d0478ece4719f3817ee21d56b336f23ee9edd265ee5d9c3d/hosts",
"LogPath": "/var/lib/docker/containers/979510c756a56364d0478ece4719f3817ee21d56b336f23ee9edd265ee5d9c3d/979510c756a56364d0478ece4719f3817ee21d56b336f23ee9edd265ee5d9c3d-json.log",
"Name": "/relaxed_curie",
"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/abc8279ec815367a76592e9784eec5022ce83da617afe385acf93ff3ad41044c-init/diff:/var/lib/docker/overlay2/78462af537e76cc80b9e640aaa43993b8faa6324264834a7bcbbe62b3e621967/diff",
"MergedDir": "/var/lib/docker/overlay2/abc8279ec815367a76592e9784eec5022ce83da617afe385acf93ff3ad41044c/merged",
"UpperDir": "/var/lib/docker/overlay2/abc8279ec815367a76592e9784eec5022ce83da617afe385acf93ff3ad41044c/diff",
"WorkDir": "/var/lib/docker/overlay2/abc8279ec815367a76592e9784eec5022ce83da617afe385acf93ff3ad41044c/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "979510c756a5",
"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": "20201204",
"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": "7927be53303efaef3f2f4a4eaf088db6727ab8e01f88c144b10ffc761d383384",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {},
"SandboxKey": "/var/run/docker/netns/7927be53303e",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "bfbc94fd3954594b4f85b6828451e777e9d39b5a9a400e54c677966e6fe6ab36",
"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": "be033bd6a203394014c003890bb4abcf9180545acc01a010787cdf24f602b701",
"EndpointID": "bfbc94fd3954594b4f85b6828451e777e9d39b5a9a400e54c677966e6fe6ab36",
"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
}
}
}
}
]
进入当前正在运行的容器
# 我们通畅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
[root@iZ2zee7khd9swlno7xr3hsZ ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
979510c756a5 centos "/bin/bash" 30 minutes ago Up 9 minutes relaxed_curie
[root@iZ2zee7khd9swlno7xr3hsZ ~]# docker exec -it 979510c756a5 /bin/bash
[root@979510c756a5 /]# ls
bin dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
#命令
docker attach 容器ID
docker exec # 进入容器开启一个新的终端
docker attach # 进入容器正在执行的终端
从容器内拷贝文件到主机上
# docker cp 容器id:目录 目标目录
标签：常用,其它,false,lib,命令,var,docker,null,proc 来源： https://blog.csdn.net/weixin_43691960/article/details/122360797