Cheatography
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Basic Docker Commands
docker search
searchterm |
Search Docker Hub for images |
docker pull
user/image |
Downloads an image from Docker Hub |
docker login |
Authenticate to Docker Hub (or other Docker registry) |
docker push
user/image⠀⠀⠀ |
Uploads an image to Docker Hub. You must be authenticated to run this command |
docker info |
Retrieves docker configuration |
docker version |
Retrieves docker versioning |
Image and Container Information
docker ps |
List all running containers |
docker ps -a |
List all container instances, with their ID and status |
docker images |
Lists all images on the local machine |
docker history <user>/<image> |
Lists the history of an image |
docker logs <container> |
Displays the logs from a running container |
docker port <container> |
Displays the exposed port of a running container |
docker diff <container> |
Lists the changes made to a container |
docker logs [-f] <container> |
Read container stdout |
docker top <container> |
Show running processes |
docker inspect <container> |
Show container configuration |
docker events |
Show container events |
<container> can be replaced with container name or ID
Network Commands
docker network ls |
List networks |
docker network inspect <Network> |
Inspect a network |
docker network create <Network> |
Create a network |
docker network rm <Network> |
Removes a network |
docker network connect <Network> <Container> |
Connect a container to the network |
docker network connect --ip <IP> <Network> <Container> |
Specify the IP address of container interface |
docker network disconnect <Network_Name> <Container> |
Disconnect container from network |
<Network> can be replaced with the network ID or NAME
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Work With Images and Containers
docker run -it user/image |
Runs an image, creating a container and changing the terminal to the terminal within the container |
docker run -p <hostport>:<containerport> -d user/image |
Run an image in detached mode with port forwarding |
docker start <container> |
Start a container |
docker exec <container> [shell command] |
Executes a command within a running container, e.g. /bin/bash |
docker attach <container> |
Changes the command prompt from the host to a running container |
docker stop <container> |
Stop a container |
docker rm -f <container> |
Delete a container |
docker create <image>:<tag> |
Create image |
docker rmi <image> |
Delete an image |
docker tag <user>/<image>:<tag> <user>/<image>:<new tag> |
Add a new tag to an image |
ctrl+p then ctrl+q |
Changes the command prompt from the host to a running container |
<container> can be replaced with container name or ID
Misc. Examples
sudo docker commit containterID username/imagename |
Commit from container to an image |
docker push username/imagename |
Docker push example (after logging) |
docker run -it -v /host/directory:/container/directory [options] image [command] |
Mount a host directory in a Docker container |
docker cp /host/directory/file.ext container:/container/directory |
Copy file from host machine to docker container |
docker rmi $(docker images -a -q) |
Delete all Docker images |
docker rm $(sudo docker ps -a -q) |
Delete all stopped containers |
docker rm $(sudo docker ps -a | grep Exit | cut -d ' ' -f 1) |
Delete all containers in Exit state |
docker save imagename > filename.tar |
Export image to a file |
docker load < filename.tar |
Load image from file |
docker [command] --help |
Command help |
Options Keywords
-p, –-publish |
Host to container port mapping |
--publish-all |
Publish all ports |
-d, –-detach |
Run in background |
-e, –-env |
Set env vars |
-v, --volume |
Mount files or directories |
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