Docker commands

Owned by Jean-luc KRIKER
Last updated: Jun 25, 2020
15 min read



Key commands:
Search for container

docker search salt

Documentation:   https://docs.docker.com/engine/reference/commandline/search/

Web site:  https://hub.docker.com/search?q=salt&type=image&operating_system=linux&sort=updated_at&order=desc

Pull an imagedocker pull datica/salt-master
list imagesdocker images

1- create


2- start / run


3- List container


4- Attach to a container


exec ( or re-attach to) a contianer
docker exec -it <container> bash

labuser@saltsackmaster:~/project/ansible/gethw$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
43f11d01c924 juniper/pyez-ansible "ash" 20 hours ago Up 20 hours inspiring_lewin
3a0d030f3f24 juniper/pyez-ansible "ash" 21 hours ago Up 21 hours epic_moser
45b70928ff3e juniper/pyez-ansible "ash" 25 hours ago Up 25 hours funny_kirch

labuser@saltsackmaster:~/project/ansible/gethw$ docker exec -it funny_kirch bash

5- stop:  docker stop

5- docker stop


myplex@batpc2:~/projects/netbox-docker$ docker ps --all
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
5a948cd79e71 rancher/rancher:latest "entrypoint.sh" 9 hours ago Up 9 hours 0.0.0.0:443->443/tcp, 0.0.0.0:8080->80/tcp dreamy_diffie

myplex@batpc2:~/projects/netbox-docker$ docker stop dreamy_diffie
dreamy_diffie

myplex@batpc2:~/projects/netbox-docker$ docker rm dreamy_diffie
dreamy_diffie

myplex@batpc2:~/projects/netbox-docker$ docker ps --all
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

myplex@batpc2:~/projects/netbox-docker$

6- remove

6- remove:   docker rm 

[root@centos7 docker-saltstack-junos]# docker ps --all
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c685ea5f042d juniper/saltstack "/entrypoint.sh sa..." 5 days ago Exited (0) 35 minutes ago saltmaster-engine
3a1bcca01ce2 juniper/saltstack "/entrypoint.sh sa..." 5 days ago Exited (0) 5 days ago quizzical_ritchie
05de1c7ea7dc juniper/saltstack "/entrypoint.sh sa..." 5 days ago Exited (0) 5 days ago sad_pasteur
6022ed4930f6 hello-world "/hello" 4 weeks ago Exited (0) 4 weeks ago pensive_hoover

[root@centos7 docker-saltstack-junos]# docker rm saltmaster-engine
saltmaster-engine
docker --help
docker help 
[root@centos7 docker-saltstack-junos]# docker --help

Usage: docker COMMAND

A self-sufficient runtime for containers

Options:
--config string Location of client config files (default "/root/.docker")
-D, --debug Enable debug mode
--help Print usage
-H, --host list Daemon socket(s) to connect to (default [])
-l, --log-level string Set the logging level ("debug", "info", "warn", "error", "fatal") (default "info")
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/root/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/root/.docker/key.pem")
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quit

Management Commands:
container Manage containers
image Manage images
network Manage networks
node Manage Swarm nodes
plugin Manage plugins
secret Manage Docker secrets
service Manage services
stack Manage Docker stacks
swarm Manage Swarm
system Manage Docker
volume Manage volumes

Commands:
attach Attach to a running container
build Build an image from a Dockerfile
commit Create a new image from a container's changes
cp Copy files/folders between a container and the local filesystem
create Create a new container
diff Inspect changes to files or directories on a container's filesystem
Get real time events from the server
exec Run a command in a running container
export Export a container's filesystem as a tar archive
history Show the history of an image
images List images
import Import the contents from a tarball to create a filesystem image
info Display system-wide information
inspect Return low-level information on Docker objects
kill Kill one or more running containers
load Load an image from a tar archive or STDIN
login Log in to a Docker registry
logout Log out from a Docker registry
logs Fetch the logs of a container
pause Pause all processes within one or more containers
port List port mappings or a specific mapping for the container
ps List containers
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rename Rename a container
restart Restart one or more containers
rm Remove one or more containers
rmi Remove one or more images
run Run a command in a new container
save Save one or more images to a tar archive (streamed to STDOUT by default)
search Search the Docker Hub for images
start Start one or more stopped containers
stats Display a live stream of container(s) resource usage statistics
stop Stop one or more running containers
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
top Display the running processes of a container
unpause Unpause all processes within one or more containers
update Update configuration of one or more containers
version Show the Docker version information
wait Block until one or more containers stop, then print their exit codesevents

Run 'docker COMMAND --help' for more information on a command.
list Docker networkdocker network ls
details of the of the container

docker inspect <container_ID >

docker container inspect <container_ID >

inspect 
myplex@batpc2:~$ docker container inspect laughing_greider
[
    {
        "Id": "4fb10dcaf46e519c16bb6de3283ca919e5713ad074219c6271bc0c0abf02225b",
        "Created": "2020-06-01T22:31:37.580432498Z",
        "Path": "run.sh",
        "Args": [
            "--server",
            "https://192.168.0.6:8443",
            "--token",
            "zd2vwnb6zw6mg7wlvxrjjnjs4vmbw4n6vjjxf59dhg8dnz92d76j5j",
            "--ca-checksum",
            "7e4b51c8861d59a3daf382205e407ccf4e5414c860aa6246cf26c63635f71a19",
            "--etcd",
            "--controlplane",
            "--worker"
        ],
        "State": {
            "Status": "running",
            "Running": true,
            "Paused": false,
            "Restarting": false,
            "OOMKilled": false,
            "Dead": false,
            "Pid": 14727,
            "ExitCode": 0,
            "Error": "",
            "StartedAt": "2020-06-15T07:47:14.916896777Z",
            "FinishedAt": "2020-06-15T07:46:48.607553205Z"
        },
        "Image": "sha256:7aab9b2c0cd6d39e03815bf3429be845257a016c3a3f5fd9e22b1ec5c3e9f329",
        "ResolvConfPath": "/var/snap/docker/common/var-lib-docker/containers/4fb10dcaf46e519c16bb6de3283ca919e5713ad074219c6271bc0c0abf02225b/resolv.conf",
        "HostnamePath": "/var/snap/docker/common/var-lib-docker/containers/4fb10dcaf46e519c16bb6de3283ca919e5713ad074219c6271bc0c0abf02225b/hostname",
        "HostsPath": "/var/snap/docker/common/var-lib-docker/containers/4fb10dcaf46e519c16bb6de3283ca919e5713ad074219c6271bc0c0abf02225b/hosts",
        "LogPath": "/var/snap/docker/common/var-lib-docker/containers/4fb10dcaf46e519c16bb6de3283ca919e5713ad074219c6271bc0c0abf02225b/4fb10dcaf46e519c16bb6de3283ca919e5713ad074219c6271bc0c0abf02225b-json.log",
        "Name": "/laughing_greider",
        "RestartCount": 16,
        "Driver": "overlay2",
        "Platform": "linux",
        "MountLabel": "",
        "ProcessLabel": "",
        "AppArmorProfile": "unconfined",
        "ExecIDs": null,
        "HostConfig": {
            "Binds": [
                "/etc/kubernetes:/etc/kubernetes",
                "/var/run:/var/run"
            ],
            "ContainerIDFile": "",
            "LogConfig": {
                "Type": "json-file",
                "Config": {}
            },
            "NetworkMode": "host",
            "PortBindings": {},
            "RestartPolicy": {
                "Name": "unless-stopped",
                "MaximumRetryCount": 0
            },
            "AutoRemove": false,
            "VolumeDriver": "",
            "VolumesFrom": null,
            "CapAdd": null,
            "CapDrop": null,
            "Capabilities": null,
            "Dns": [],
            "DnsOptions": [],
            "DnsSearch": [],
            "ExtraHosts": null,
            "GroupAdd": null,
            "IpcMode": "shareable",
            "Cgroup": "",
            "Links": null,
            "OomScoreAdj": 0,
            "PidMode": "",
            "Privileged": true,
            "PublishAllPorts": false,
            "ReadonlyRootfs": false,
            "SecurityOpt": [
                "label=disable"
            ],
            "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": 0,
            "Ulimits": null,
            "CpuCount": 0,
            "CpuPercent": 0,
            "IOMaximumIOps": 0,
            "IOMaximumBandwidth": 0,
            "MaskedPaths": null,
            "ReadonlyPaths": null
        },
        "GraphDriver": {
            "Data": {
                "LowerDir": "/var/snap/docker/common/var-lib-docker/overlay2/a84aa9c903e0d233990877cb7086676859b0732333d8c7178e7ce6c13e7be9d2-init/diff:/var/snap/docker/common/var-lib-docker/overlay2/fe04e3dcbf32d2e679db181044b7ce95aaa3f02edae01b7812cd9e492ed5f561/diff:/var/snap/docker/common/var-lib-docker/overlay2/1d68cdfa749e2bdebed74ffc2b57eb07e338b40269e5b0874fb998aac05446ae/diff:/var/snap/docker/common/var-lib-docker/overlay2/2c9b2e2e6cb77fd8466fdaf651308c2392f298cb3c14668a879d8d1b4e49145c/diff:/var/snap/docker/common/var-lib-docker/overlay2/f0cdb19423889bc4d2dee9da7c5e068947be4ebe92f224a3dbbe5acf0c669bce/diff:/var/snap/docker/common/var-lib-docker/overlay2/c2a548927b66a92f3b793746b7b1a1ec01b9173f4ade252ef70edb05fa21e0e9/diff:/var/snap/docker/common/var-lib-docker/overlay2/193eb7bb047332ea3035ff2085e687c924e3ae4ae7df752255b0e08ef16dc2cf/diff:/var/snap/docker/common/var-lib-docker/overlay2/85964f24fd7e400f82370a693c1aab453b25f5918171738651fec65550067879/diff:/var/snap/docker/common/var-lib-docker/overlay2/0858a9b2eecf9738a36a7e7513ec43455c6e20981ce3a2b0c70a60031abc9cce/diff:/var/snap/docker/common/var-lib-docker/overlay2/ff0e609c0e4caf590921e06e7dced0498d0110c2aa8cd63a67b8c27c3aa797f2/diff:/var/snap/docker/common/var-lib-docker/overlay2/ec847a1e7e436c872e0d04de96702a74f35ba54d27ac036a5d04b6aedf9ccf0e/diff",
                "MergedDir": "/var/snap/docker/common/var-lib-docker/overlay2/a84aa9c903e0d233990877cb7086676859b0732333d8c7178e7ce6c13e7be9d2/merged",
                "UpperDir": "/var/snap/docker/common/var-lib-docker/overlay2/a84aa9c903e0d233990877cb7086676859b0732333d8c7178e7ce6c13e7be9d2/diff",
                "WorkDir": "/var/snap/docker/common/var-lib-docker/overlay2/a84aa9c903e0d233990877cb7086676859b0732333d8c7178e7ce6c13e7be9d2/work"
            },
            "Name": "overlay2"
        },
        "Mounts": [
            {
                "Type": "bind",
                "Source": "/etc/kubernetes",
                "Destination": "/etc/kubernetes",
                "Mode": "",
                "RW": true,
                "Propagation": "rprivate"
            },
            {
                "Type": "bind",
                "Source": "/var/run",
                "Destination": "/var/run",
                "Mode": "",
                "RW": true,
                "Propagation": "rprivate"
            }
        ],
        "Config": {
            "Hostname": "batpc2",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": [
                "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
                "DOCKER_URL_amd64=https://get.docker.com/builds/Linux/x86_64/docker-1.10.3",
                "DOCKER_URL_arm64=https://github.com/rancher/docker/releases/download/v1.10.3-ros1/docker-1.10.3_arm64",
                "DOCKER_URL=DOCKER_URL_amd64",
                "KUBECTL_VERSION=v1.16.8",
                "LOGLEVEL_VERSION=v0.1.3",
                "KUBEPROMPT_VERSION=v1.0.10",
                "DOCKER_API_VERSION=1.24",
                "AGENT_IMAGE=rancher/rancher-agent:v2.4.3",
                "SSL_CERT_DIR=/etc/kubernetes/ssl/certs"
            ],
            "Cmd": [
                "--server",
                "https://192.168.0.6:8443",
                "--token",
                "zd2vwnb6zw6mg7wlvxrjjnjs4vmbw4n6vjjxf59dhg8dnz92d76j5j",
                "--ca-checksum",
                "7e4b51c8861d59a3daf382205e407ccf4e5414c860aa6246cf26c63635f71a19",
                "--etcd",
                "--controlplane",
                "--worker"
            ],
            "Image": "rancher/rancher-agent:v2.4.3",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": [
                "run.sh"
            ],
            "OnBuild": null,
            "Labels": {
                "io.cattle.agent": "true",
                "org.label-schema.build-date": "2020-05-06T22:58:03Z",
                "org.label-schema.schema-version": "1.0",
                "org.label-schema.vcs-ref": "684884c005a6dd9a916861a3e5308815e1eed772",
                "org.label-schema.vcs-url": "https://github.com/rancher/rancher.git"
            }
        },
        "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "4f884591472c9d518b7d98e52d1673f76a77380f4019f0f9e637a2f5dd1e982c",
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "Ports": {},
            "SandboxKey": "/var/snap/docker/471/run/docker/netns/default",
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "host": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": null,
                    "NetworkID": "e269e39a2ce57d319069e1c0dbe04a94b080c3fd7b352b6dd9fd5783450c2d13",
                    "EndpointID": "e618bea35d108a6f328d8695fe981c202c429f5b5a0a106540b93b9a4a4eddbd",
                    "Gateway": "",
                    "IPAddress": "",
                    "IPPrefixLen": 0,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "MacAddress": "",
                    "DriverOpts": null
                }
            }
        }
    }
]
myplex@batpc2:~$
container logs
myplex@batpc2:~$ docker container logs laughing_greider
INFO: Arguments: --server https://192.168.0.6:8443 --token REDACTED --ca-checksum 7e4b51c8861d59a3daf382205e407ccf4e5414c860aa6246cf26c63635f71a19 --etcd --controlplane --worker
INFO: Environment: CATTLE_ADDRESS=192.168.0.6 CATTLE_INTERNAL_ADDRESS= CATTLE_NODE_NAME=batpc2 CATTLE_ROLE=,etcd,worker,controlplane CATTLE_SERVER=https:/ /192.168.0.6:8443 CATTLE_TOKEN=REDACTED
INFO: Using resolv.conf: nameserver 8.8.8.8 search jlkhome.net
ERROR: https://192.168.0.6:8443/ping is not accessible (Empty reply from server)
INFO: Arguments: --server https://192.168.0.6:8443 --token REDACTED --ca-checksum 7e4b51c8861d59a3daf382205e407ccf4e5414c860aa6246cf26c63635f71a19 --etcd --controlplane --worker
INFO: Environment: CATTLE_ADDRESS=192.168.0.6 CATTLE_INTERNAL_ADDRESS= CATTLE_NODE_NAME=batpc2 CATTLE_ROLE=,etcd,worker,controlplane CATTLE_SERVER=https:/ /192.168.0.6:8443 CATTLE_TOKEN=REDACTED
INFO: Using resolv.conf: nameserver 8.8.8.8 search jlkhome.net
INFO: https://192.168.0.6:8443/ping is accessible
INFO: Value from https://192.168.0.6:8443/v3/settings/cacerts is an x509 certificate
time="2020-06-01T22:31:54Z" level=info msg="Rancher agent version v2.4.3 is starting"
time="2020-06-01T22:31:54Z" level=info msg="Option etcd=true"
time="2020-06-01T22:31:54Z" level=info msg="Option controlPlane=true"
time="2020-06-01T22:31:54Z" level=info msg="Option worker=true"
. . .
container stats
myplex@batpc2:~$ docker container stats laughing_greider
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
4fb10dcaf46e laughing_greider 0.12% 17.68MiB / 2.914GiB 0.59% 0B / 0B 72.2MB / 8.19kB 8

display port mapping

docker port healthbot_gateway_1
443/tcp -> 0.0.0.0:8080


display name colunmdocker ps --format '{{.Names}}'
healthbot_gateway_1
healthbot_debugger_1
healthbot_reports_1
healthbot_hbmon_1