IuriiO Notebook
Search…
⌃K
Links

Containers

Docker containers

Commands

Run container

container run - p 80:80 -d --name webserver nginx
pass "--rm" to remove container when it stops.

List all containers (pass -a to see all containers)

docker container ls [-a]

Get logs from container

docker container logs <container-name>

List running processes in the container

docker container top <container-name>

Get system information about running containers

docker container stats

Get metadata about running container

docker container inspect <container-name>
Example:
[
{
"Id": "2471fee7e410a4ba48e69e80ecdc7033f46f7012ca493d1dba92dc9a6fda46f7",
"Created": "2020-01-13T01:27:41.8547458Z",
"Path": "nginx",
"Args": [
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 2513,
"ExitCode": 0,
"Error": "",
"StartedAt": "2020-01-13T01:27:42.7242686Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:c7460dfcab502275e9c842588df406444069c00a48d9a995619c243079a4c2f7",
"ResolvConfPath": "/var/lib/docker/containers/2471fee7e410a4ba48e69e80ecdc7033f46f7012ca493d1dba92dc9a6fda46f7/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/2471fee7e410a4ba48e69e80ecdc7033f46f7012ca493d1dba92dc9a6fda46f7/hostname",
"HostsPath": "/var/lib/docker/containers/2471fee7e410a4ba48e69e80ecdc7033f46f7012ca493d1dba92dc9a6fda46f7/hosts",
"LogPath": "/var/lib/docker/containers/2471fee7e410a4ba48e69e80ecdc7033f46f7012ca493d1dba92dc9a6fda46f7/2471fee7e410a4ba48e69e80ecdc7033f46f7012ca493d1dba92dc9a6fda46f7-json.log",
"Name": "/webserver",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "default",
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "80"
}
]
},
"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/a4d587b17605cd7d55e5e4e53ca94f85eb3873717774c7ccaf2ffdbfda7ede6f-init/diff:/var/lib/docker/overlay2/b0b1f6dce35e8f037a3f0bd7310c9d262bfbe50bf2a99d8d1d5bb9a8c2d674e7/diff:/var/lib/docker/overlay2/d2a2f0e8c23a861795bcab3d13f17ca643c17a9b97c74c85696393828186cb1a/diff:/var/lib/docker/overlay2/a20f4c7748e1f828f0d533783d04930c7f16d6435dbebe4b093dd7c05488b666/diff",
"MergedDir": "/var/lib/docker/overlay2/a4d587b17605cd7d55e5e4e53ca94f85eb3873717774c7ccaf2ffdbfda7ede6f/merged",
"UpperDir": "/var/lib/docker/overlay2/a4d587b17605cd7d55e5e4e53ca94f85eb3873717774c7ccaf2ffdbfda7ede6f/diff",
"WorkDir": "/var/lib/docker/overlay2/a4d587b17605cd7d55e5e4e53ca94f85eb3873717774c7ccaf2ffdbfda7ede6f/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "2471fee7e410",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"NGINX_VERSION=1.17.7",
"NJS_VERSION=0.3.7",
"PKG_RELEASE=1~buster"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"Image": "nginx",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": null,
"OnBuild": null,
"Labels": {
"maintainer": "NGINX Docker Maintainers <[email protected]>"
},
"StopSignal": "SIGTERM"
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "dac7e1d502934740d4bdcedf1756d75514e4a5387bae842a6770026886d9eeaf",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
]
},
"SandboxKey": "/var/run/docker/netns/dac7e1d50293",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "d3731f0e83b1ee4bc67f9221c0056e2eef91b8e3ea2e86636765bbad13b35b9f",
"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": "45ecc9dd0aa8816755250010c1b01d899e2de4700db943e6ed8d6224c56bf9e7",
"EndpointID": "d3731f0e83b1ee4bc67f9221c0056e2eef91b8e3ea2e86636765bbad13b35b9f",
"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
}
}
}
}
]

Stop running container

docker container stop <container-name|container-id>

Remove container

(pass -f to force remove container)
docker container [-f] rm <container-name|container-id>

Start container with different process then defined in CMD or ENTRYPOINT

docker container run -it --name webserver nginx bash
will start "bash" in interactive mode in "nginx" container named "webserver". Once connected, a "ps" can be installed to make sure the only process running is "bash"
apt-get update
apt-get install -y procps
ps aux

Connect to the running docker container and run shell

Connect to running container with shell (depends whether specific shell is installed)
docker container exec -it <container-name|id> bash

List container port mappings:

docker container port <container-name|container-id>
if container has a host to container port mappings, command should produce something like: 80/tcp -> 0.0.0.0:80
Last modified 2yr ago