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Docker 🐋 quick guide

Posted on 18 Oct, 2020
1.Remove docker image.
docker rmi <img-id>
2.Remove docker container.
docker rm <container-id>
3.Build a docker image with a name.
docker build -f <dockerfile-path> -t name .
4.Run a container.
docker run -p 3000:3000 <container-id>
5.Stop a container.
docker stop <container-id>
6.Run a container in detach mode (run in background).
docker run -d <container-id>
For the love of God always add a -d while running a container. Speaking this from experience.
If you don't run in detach mode, you won't be able to Ctrl+C (or exit), instead use Ctrl+PC (yes the P key and C key).
7.List docker volumes.
docker volume ls
8.Remove docker volume.
docker volume rm <volume-name>
9.Check port mapping.
docker port <name>
10.Starting a docker container
docker start <container>
The first two letters of CONTAINER_ID can be provided as an argument too.
11.Run a command inside container.
docker container exec <CONTAINER> ls -la
12.Check history of an image.
docker history <IMAGE>
13.Connect to local port inside container.
docker run -d --network=host --add-host=host.docker.internal:127.0.0.1
Docker Compose
Tip: Alias docker-compose to an alias like dc to make your life better
1.Build and run containers.
docker-compose up --build
2.Start compose in detached mode
docker-compose up -d
3.Stop containers.
docker-compose stop
4.Check logs/console messages.
docker-compose logs <image name>
# or better use docker
docker logs -f <image name>
To clear log output, use cmd + k, or ctrl + k
5.List all containers.
docker-compose ps
Docker Quick Steals
1.Run a postgres container.
docker run --name postgres --rm -p 5438:5432 -e POSTGRES_PASSWORD=pass -e POSTGRES_DB=test -d postgres
Get psql using
docker container exec -it postgres psql -U postgres -d test

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