ceph-csi/scripts/build-multi-arch-image.sh

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#!/bin/bash
# shellcheck source=scripts/build_step.inc.sh
source "$(dirname "${0}")/build_step.inc.sh"
set -xe
# "docker manifest" requires experimental feature enabled
export DOCKER_CLI_EXPERIMENTAL=enabled
cd "$(dirname "${0}")/.."
# ceph base image used for building multi architecture images
build_env="build.env"
baseimg=$(awk -F = '/^BASE_IMAGE=/ {print $NF}' "${build_env}")
# get image digest per architecture
# {
# "arch": "amd64",
# "digest": "sha256:XYZ"
# }
# {
# "arch": "arm64",
# "digest": "sha256:ZYX"
# }
manifests=$(docker manifest inspect "${baseimg}" | jq '.manifests[] | {arch: .platform.architecture, digest: .digest}')
# qemu-user-static is to enable an execution of different multi-architecture containers by QEMU
# more info at https://github.com/multiarch/qemu-user-static
build_step "starting multiarch/qemu-user-static container"
docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
# build and push per arch images
for ARCH in amd64 arm64; do
ifs=$IFS
IFS=
digest=$(awk -v ARCH=${ARCH} '{if (archfound) {print $NF; exit 0}}; {archfound=($0 ~ "arch.*"ARCH)}' <<<"${manifests}")
IFS=$ifs
base_img=${baseimg}@${digest}
build_step "make image-cephcsi for ${ARCH}"
GOARCH=${ARCH} BASE_IMAGE=${base_img} make image-cephcsi
done