Build matrix from bake file docker
Build/push multiple targets from one HCL file; parallel, DRY group definitions
docker buildx bake -f docker-bake.hcl --push
more docker
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Inspect multi-arch manifest
docker buildx imagetools inspect <reg>/<name>:tag --format '{{json .Manifest}}'
Container driver builder
docker buildx create --name multi --use --driver docker-container --driver-opt network=host
Pass build secret from file
docker buildx build --secret id=token,src=token.txt -t <name> .
Remote daemon over SSH
docker context create remote --docker host=ssh://<host> && docker context use remote
Hardened read-only container
docker run --read-only --tmpfs /tmp --security-opt no-new-privileges --cap-drop ALL <name>