Prune everything unused

Remove stopped containers, unused images, networks, volumes

docker system prune -af --volumes
tool
docker46 commands
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docker

More docker commands

  • Copy image between registries
    docker pull src-reg/img:tag && docker tag src-reg/img:tag dst-reg/img:tag && docker push dst-reg/img:tag

    Re-tag and push to another registry

  • Save image to tarball
    docker save img:tag | gzip > img.tar.gz

    Export an image for air-gapped transfer

  • Build with build args
    docker build --build-arg VERSION=1.2.3 --build-arg ENV=prod -t img:tag .

    Pass build-time variables into Dockerfile ARG instructions

  • Scan image with Trivy
    trivy image --exit-code 1 --severity HIGH,CRITICAL img:tag

    Fail pipeline if HIGH or CRITICAL CVEs found

  • Check image SBOM
    docker sbom img:tag

    Generate Software Bill of Materials for an image (Docker Desktop)

all 46 docker commands