This is docker course for testers, and contains everything you need to set up your local environment and start testing application.

Course content

0. Prerequisites before you start this course
1. Running swagger-editor
2. Running and configuring databases in docker
3. Running with Dockerfile
4. Running dotnet application
5. Docker volumes with Angular application
6. Communication between containers
7. docker-compose

Docker cheatsheet

Those commands work propery on git bash or powershell. Do not use simple windows terminal.

Tips and tricks

• Kill all containers: docker stop $(docker ps -a -q)
• Remove all containers (force kills all containers even running): docker rm -f $(docker ps -a -q)
• Remove all images: docker rmi $(docker images -q)
• Remove all unused stuff (beware!): docker system prune
• Delete stopped containers docker rm -v $(docker ps -a -q -f status=exited)
• First stop then delete containers: docker stop $(docker ps -aq) && docker rm -v $(docker ps -aq)

Start and stop

• docker create creates a container but does not start it.
• docker rename allows the container to be renamed.
• docker run creates and starts a container in one operation.
• docker rm deletes a container.
• docker update updates a container's resource limits.

Information

• docker ps shows running containers.
• docker logs gets logs from container. (You can use a custom log driver, but logs is only available for json-file and journald in 1.10).
• docker inspect looks at all the info on a container (including IP address).
• docker port shows public facing port of container.
• docker top shows running processes in container.
• docker stats shows containers' resource usage statistics.
• docker ps -a shows running and stopped containers.
• docker stats --all shows a list of all containers, default shows just running.

Executing command

• docker exec

Images

• docker images shows all images
• docker build builds image from Dockerfile
• docker rmi removes image

Author: Michal Dobrzycki License: MIT