Docker_Essential_Cheats

1. Pulling an image from the repository

docker pull <name_of_the_image>

2. To build an image from a Dockerfile

docker build -t <image_name> .

Note

Here . (optional) means current folder and -t (optional) is used to tag the image id. Both are optional.

3. List all local images

docker images 

4. Delete an image.

docker rmi <image_name> 

5. Remove all unused images

docker image prune

6. Publishing an image into Docker

docker push <username>/<image_name> 

7. Running a container

docker run -t -d -p <host_port>:<container_port> --name <name_of_the_container> <image_name>

Important

-t tag (optional) is used to tag,
-d detach (optional) to run in the background not to show log details and terminal detach from running container,
-p <host_port>:<container_port> publish (optional) binding container port to the localhost.

8. To open the shell inside the running container

docker exec -it <container_name> sh

9. Check all the running containers

docker ps 

10. List the containers that ran and exited successfully.

docker ps -a 

11. Pings application

docker localhost

12. Stops one or more running containers

docker stop

Tip

To stop all running containers

docker stop $(docker ps -q)

13.To remove a container

docker container rm 

14. To see how much memory using by the containers

docker stats 

15. Creates a tag for a target image that refers to a source image

docker tag

16. Start the docker daemon

docker -d