Docker Cheatsheet

Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly. With Docker, you can manage your infrastructure in the same ways you manage your applications. By taking advantage of Docker’s methodologies for shipping, testing, and deploying code quickly, you can significantly reduce the delay between writing code and running it in production. In this post, I will mention docker commands which we need or most of the use-cases.

Lifecycle Commands
Starting and Stopping Containers
Docker Image Commands
Docker Container And Image Information
Network Commands

Lifecycle Commands

Create a container (without starting it):
```
docker create [IMAGE]
```

Rename an existing container

docker rename [CONTAINER_NAME] [NEW_CONTAINER_NAME]

Run a command in a new container
```
docker run [IMAGE] [COMMAND]
```
Remove container after it exits
```
docker run --rm [IMAGE]
```
Start a container and keep it running
```
docker run -td [IMAGE]
```
Start a container and creates an interactive bash shell in the container
```
docker run -it [IMAGE]
```
Create, Start, and run a command inside the container and remove the container after executing command.
```
docker run -it-rm [IMAGE]
```
Execute command inside already running container.
```
docker exec -it [container]
```
Delete a container (if it is not running)
```
docker rm [CONTAINER]
```
Update the configuration of the container
```
docker update [CONTAINER]
```

Starting and Stopping Containers

Start Container
```
docker start [CONTAINER]
```
Stop running Container
```
docker stop [CONTAINER]
```
Stop running Container and start it again
```
docker restart [CONTAINER]
```
Pause processes in a running container
```
docker pause [CONTAINER]
```
Unpause processes in a running container
```
docker unpause [CONTAINER]
```
Block a container until others stop
```
docker wait [CONTAINER]
```
Kill a container by sending a SIGKILL to a running container
```
docker kill [CONTAINER]
```
Attach local standard input, output, and error streams to a running container
```
docker attach [CONTAINER]
```

Docker Image Commands

Create an image from a Dockerfile
```
docker build [URL/FILE]
```
Create an image from a Dockerfile with Tags
```
docker build -t <tag> [URL/FILE]
```
Pull an image from a registry
```
docker pull [IMAGE]
```
Push an image to a registry
```
docker push [IMAGE]
```
Create an image from a tarball
```
docker import [URL/FILE]
```

Create an image from a container

docker commit [CONTAINER] [NEW_IMAGE_NAME]

Remove an image
```
docker rmi [IMAGE]
```
Load an image from a tar archive or stdin
```
docker load [TAR_FILE/STDIN_FILE]
```
Save an image to a tar archive
```
docker save [IMAGE] > [TAR_FILE]
```

Docker Container And Image Information

List running containers
```
docker ps
```
Lists both running containers and ones that have stopped
```
docker ps -a
```
List the logs from a running container
```
docker logs [CONTAINER]
```
List low-level information on Docker objects
```
docker inspect [OBJECT_NAME/ID]
```
List real-time events from a container
```
docker events [CONTAINER]
```
Show port mapping for a container
```
docker port [CONTAINER]
```
Show running processes in a container
```
docker top [CONTAINER]
```
Show live resource usage statistics of container
```
docker stats [CONTAINER]
```
Show changes to files (or directories) on a filesystem
```
docker diff [CONTAINER]
```
List all images that are locally stored with the docker engine
```
docker [image] ls
```
Show the history of an image
```
docker history [IMAGE]
```

Network Commands

List networks
```
docker network ls
```
Remove one or more networks
```
docker network rm [NETWORK]
```
Show information on one or more networks
```
docker network inspect [NETWORK]
```

Connects a container to a network

docker network connect [NETWORK] [CONTAINER]

Disconnect a container from a network

docker network disconnect [NETWORK] [CONTAINER]

Thank you for reading

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Docker Cheatsheet

Docker commands that developers should know

Lifecycle Commands

Starting and Stopping Containers

Docker Image Commands

Docker Container And Image Information

Network Commands

Thank you for reading

Twitter - Follow @vishnuchi

Subscribe to my weekly newsletter here.

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