My reference of the most useful commands to know when you're building in Docker:
Build and run
Build an image:
docker build -t myimage .
Build an image, deleting the old one:
docker rmi myimage && docker build -t myimage .
Build an image, and print all the steps:
docker build --progress=plain -t myimage .
Run container from image, with port forwarding:
docker run -p 80:80 myimage
Run container for debugging purposes, replacing the entrypoint with a shell:
docker run --rm -it --entrypoint bash myimage
Inventory
List all images:
docker image ls
List all containers: (The -a flag is to show stopped containers as well)
docker container ls -a
List all docker images and containers and file sizes:
docker system df -v
Show the history of an image:
docker history myimage
Clean up
**Dangling images* are untagged and not needed by any tagged images.*
**Unused image* are not needed by any existing containers.*
Delete stopped containers:
docker container prune
Remove dangling images:
docker image prune
Remove unused images:
docker image prune -a
Remove build cache:
docker builder prune
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