00. Docker 🐋 - Cheat Sheet

Hey there! This quick document contains some useful commands and use cases when you're working with Docker. Feel free to write me for share your comments or feedback, through my LinkedIn.

Let's start!

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🔹 Run a container:

docker run <image_container> # standard
docker run --name <name_container> <image_container> # named container

🔹 Run a container, mapping a host port to a container port.

docker run -p <host_port>:<container_port> <image_container>
# host_port : container_port

... example:

docker run -p 8080:80 nginx

🔹 Restart a containers:

docker restart <container_id>

🔹 List of containers:

docker ps # active containers
docker ps -a # all containers

🔹 Run bash and have access to the container:

docker exec -ti <container_id> bash

🔹 Run a container with a volume:

docker run -v <volume_name>:<mount_point>:<options> <image_container>

... example:

• Volume -> test
• Mount point on the container -> /apps
• Options -> rw (Lectura y escritura)

docker run -v test:/apps:rw nginx

🔹 View container logs:

docker logs <name_container>

🔹 Update memory 💡:

docker update --memory "XXXm" <container_id>

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Deleting things 🐋

Containers

🔹 Delete a container:

• It can be done both by name and by ID

docker kill <container_id> # first kill the container
docker container rm <container_id> # then, remove it

🔹 Delete a container even if it's up. Forcing it:

docker rm -f <id_container>

🔹 Stop a container:

docker stop <id_container>

🔹 Start a stopped container:

docker start <id_container>

Volume

🔹 List and delete volumes:

docker volume ls
docker volume rm <container_id>

Extra: AWS Practical Cases

Apply for EC2 instances:

🔹Login into the instance:

ssh -i <your_pem_certificate> ubuntu@<public_ec2_ip>