Day 20: Docker Cheat Sheet

Finally!! 🎉

You have completed✅ the Docker handson and I hope you have learned something interesting from it.🙌

Now it's time to take your Docker skills to the next level by creating a comprehensive cheat-sheet of all the commands you've learned so far. This cheat-sheet should include commands for both Docker and Docker-Compose, as well as brief explanations of their usage. This cheat-sheet will not only help you in the future but also contribute to the DevOps community by providing a useful resource for others.😊🙌

So, put your knowledge and creativity to the test and create a cheat-sheet that truly stands out! 🚀

I have added a cheatsheet for your reference, Make sure every cheatsheet must be UNIQUE

Post it on Linkedin and Spread the knowledge.😃

Happy Learning :)

List All Docker Images

docker images -a

List All Running Docker Containers

docker ps

List All Docker Containers

docker ps -a

Start a Docker Container

docker start <container name>

Stop a Docker Container

docker stop <container name>

View the Logs of a Running Docker Container

docker logs <container name>

Delete All Docker Containers

Use -f option to nuke the running containers too.

docker rm $(docker ps -a -q)

Remove a Docker Image

docker rmi <image name>

Delete All Docker Images

docker rmi $(docker images -q)

SSH Into a Running Docker Container

Okay not technically SSH, but this will give you a bash shell in the container.

sudo docker exec -it <container name> bash

Use Docker Compose to Build Containers

docker-compose build

Use Docker Compose to Start a Group of Containers

Use this command from the directory of your docker-compose.yml file.

docker-compose up -d

This will tell Docker to fetch the latest version of the container from the repo, and not use the local cache.

docker-compose up -d --force-recreate

This can be problematic if you’re doing CI builds with Jenkins and pushing Docker images to another host, or using for CI testing. I was deploying a Spring Boot Web Application from Jekins, and found the Docker container was not getting refreshed with the latest Spring Boot artifact.

#stop docker containers,

and rebuild

docker-compose stop -t

docker-compose rm -f

docker-compose pull

docker-compose build

docker-compose up -d

Follow the Logs of Running Docker Containers With Docker Compose

docker-compose logs -f

Save a Running Docker Container as an Image

docker commit <image name> <name for image>

Follow the Logs of One Container Running Under Docker Compose

docker-compose logs pump <name>

# Setup Docker in EC2:-

sudo apt-get update

sudo apt-get install docker.io

sudo usermod -a -G docker $USER

sudo reboot