Multi-platform build

Build and push multi-arch image using BuildKit

docker buildx build --platform linux/amd64,linux/arm64 -t myapp:latest --push .
tool
docker46 commands
tags
docker

More docker commands

  • Inspect image layers
    docker history --no-trunc <image>

    Show all layers with full commands and sizes

  • Export container filesystem
    docker export <container> | tar -tvf - | head -30

    Inspect a container's merged filesystem as a tar stream

  • Diff container from image
    docker diff <container>

    Files added (A), changed (C), or deleted (D) in a running container

  • Commit container to image
    docker commit -m 'debug snapshot' <container> debug-snapshot:$(date +%s)

    Snapshot a running container's filesystem as an image

  • Run with resource limits
    docker run --memory=512m --cpus=0.5 --oom-kill-disable=false myapp

    Limit container to 512MB RAM and half a CPU core

all 46 docker commands