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* Use latest kernel in linuxkit Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> * Parallelize kernel source compression This surpringly saves a lot of time: M1: from 340 to 90 seconds Intel: from 527 to 222 seconds (2 cores 4 threads) Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> * Add buildx target buildx can use remote builders and automatically generate the multiarch manifest. A properly configured builder is required : First create docker context for the remote builders : $ docker context create node-<arch> --docker "host=ssh://<user>@<host>" Then create a buildx configuration using the remote builders: $ docker buildx create --name kernel_builder --platform linux/amd64 $ docker buildx create --name kernel_builder --node node-arm64 --platform linux/arm64 --append $ docker buildx use kernel_builder $ docker buildx ls Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> * Add a PLATFORMS variable to declare platforms needed for buildx Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> * Make image name customizable Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> * Do not tag use the architecture suffix for images built with buildx Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> * Add make kconfigx to upgrade configs using buildx To update configuration for 5.10 kernels use : make -C kernel KERNEL_VERSIONS=5.10.104 kconfigx Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com> --------- Signed-off-by: Frédéric Dalleau <frederic.dalleau@docker.com>
See ../docs/kernels.md for more information on kernel builds.