Docker Cheat Sheet

This Docker cheat sheet contains all the basic commands, you use frequently while you are working with Docker. But, it is difficult to keep remember all these commands and you prepare stickies. But now, no more stickies. You can use this cheat sheet as your sticky notes. 

Build an image from the Dockerfile in the current directory and tag the image

• docker build -t <image-name:tag> .
  Example: docker build -t helloworld:1.0 .
  
  
• docker build -t <image-name> .
  Example: docker build -t helloworld .
  
  

Note:
- Don't miss dot (.). This used to save image in current directory.
- tag can be a version for image.
- Tag is optional but image-name is Required.

List of Images

• Show all Images available in local cache
  docker images
• Show all Images for particular image with different version
  docker images <image-name>
• Show for image particular image name and version
  docker images <image-name:tag>

Tag Images

• Retag a local image with a new image name and tag
  docker tag myimage:1.0 myrepo/myimage:2.0

Delete the Image

• Delete Image using image name and tag, if at build time you given tag name then you should use this command
  docker rmi <image-name:tag>
• Delete Image using image name
  docker rmi <image-name>
• Delete Image using image-id (run docker images command to get image-id)
  docker rmi <image-id>

Start Container

• Start container using image-name
  docker start <image-name>
• Start container using container-id (run docker ps command to get container-id)
  docker start <container-id>

Stop Running Container

• Stop container using image-name
  docker stop <image-name>
• Stop container using container-id (run docker ps command to get container-id)
  docker stop <container-id>
• Stop container using container-id (run docker ps command to get container-id)
  docker kill <container-id>
Note:
- Difference between docker stop and docker kill is docker stop gives the container to shutdown gracefully. But docker kill stop immediately.

List of running container/services

• Shows only the list of running containers
  docker ps
• Shows the list of both running and exited containers
  docker ps -a

Remove Container

• Remove container using container name
  docker rm <container-name>
• Remove container using container Id
  docker rm <container-Id>
Note:
- Container/Image name and Container id you can get using docker ps command

Access running container

• docker exec -it <container-name> /bin/bash ;

• Show all logs since deploy
  docker logs <container-name>
• Show logs since timestamp
  docker logs --since=5m <container-name>
Note:
- 5m for 5 minutes
- 5s for 5 seconds
- 5h for 5 hours
• Show number of lines from the end of the logs
  docker logs --tail=200 <container-name>
Note:
- will show last 200 lines

• Login to the docker hub registry
  docker login
• Pull an image from a registry
  docker pull <container-name:tag>
• Push an image to a registry
  docker push <container-name:tag>

• Run a container and will show the logs
  docker run --name=<container-name>
  
Example: docker run --name=myImage


• Run a container and Automatically remove the container when it exits
  docker run --rm --name=<container-name>
  
Example: docker run --rm --name=myImage


• Run a container and will not show the logs
  docker run --d --name=<container-name>
  
Example: docker run --d --name=myImage


• Run a container with expose port 5000 externally, mapped to port 4000 inside the container
  docker run --p <host:external-port:internal-port> --name=<container-name>
  
Example: docker run -p 0.0.0.0:5000:4000 --name=myImage