Docker Cheat Sheet

Quick Installation Script (Linux)

To quickly install Docker on supported Linux distributions, you can use the following script. First, download the script:

curl -fsSL https://get.docker.com -o get-docker.sh

Next, make the script executable:

chmod +x get-docker.sh

Finally, execute the script:

./get-docker.sh

Listing Docker Containers

Before accessing a container, you need its name or ID. Use the following command to list running containers:

docker ps

Accessing a Running Container with Bash

To open a Bash shell inside a running Docker container:

docker exec -it <container_id_or_name> bash

Stopping All Running Docker Containers

To stop all currently running Docker containers:

docker kill $(sudo docker ps -q)

How It Works: The docker ps -q command lists only the IDs of all running containers. These IDs are then passed to docker kill, which stops all the specified containers.

Cleaning Up Docker Containers

To remove all unused containers, images, networks, and volumes:

docker system prune --all --volumes

--all removes all unused images, not just dangling ones.
--volumes also removes all unused volumes.
By default, Docker will prompt for confirmation. To skip the prompt, add --force.

Viewing Docker Container Logs

To view the logs of a specific Docker container:

docker logs wg-easy