linux:docker:docker_cheatsheet
Table of Contents
[CHEATSHEET] docker
Container registry
AWS
aws ecr get-login-password --region ${AWS_REGION} | docker login --username AWS --password-stdin ${AWS_ACCOUNT_ID}.dkr.ecr.${AWS_REGION}.amazonaws.com
Images
image list
docker images -a
docker image ls -a
remove image
docker image rm ${IMAGE_ID}
pull image
docker pull ${AWS_ACCOUNT_ID}.dkr.ecr.eu-west-3.amazonaws.com/public/library/mysql:8
Tag image (easy way to find it)
docker tag ${IMAGE_ID} mysql8
Image internal config
entrypoint
docker inspect --format='{{.Config.Entrypoint}}' ${IMAGE_ID}
cmd
docker inspect --format='{{.Config.Cmd}}' ${IMAGE_ID}
Running
Run image
Just run
docker run ${IMAGE_ID}
Add environment variables from a file
docker run --env-file env_vars.sh ${IMAGE_ID}
Expose a port
same syntax as ssh
tunnel
docker run -p 13306:3306 ${IMAGE_ID}
Drop the container from filesystem after exit
same syntax as ssh
tunnel
docker run -rm ${IMAGE_ID}
Spawn a shell instead of the ENTRYPOINT
docker run -it --entrypoint bash ${IMAGE_ID}
process list
process container list
docker container ls -a
https://docs.docker.com/engine/reference/commandline/container_ls/
stop container
docker container stop ${CONTAINER_ID}
Run with another CPU architecture
WARNING: see setup!!!
docker run --rm -ti --platform linux/arm64 public.ecr.aws/docker/library/debian:bookworm-slim uname -a
container deletion
docker container rm CONTAINER_HASH
Destroy all:
docker container prune -a
or:
for i in $(docker container ls -a| egrep -v "^CONTAINER ID"|awk '{print $1}') ; do docker container rm ${i} ; done
Building
prune cache
docker build prune
or for buildx
:
docker buildx prune
Multi-arch
Setup
Install qemu:
pacman -S qemu qemu-user-static qemu-user-static-binfmt
As the user which runs docker
commands:
docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
Check:
docker run --rm -ti --platform linux/arm64 public.ecr.aws/docker/library/debian:bookworm-slim uname -a
linux/docker/docker_cheatsheet.txt · Last modified: 2024/11/19 16:06 by dodger