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build/lib/release: Explicitly use '--platform' in building server images

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When we switched to go-runner for building the apiserver,
controller-manager, and scheduler server components, we no longer
reference the individual architectures in the image names, specifically
in the 'FROM' directive of the server image Dockerfiles.

As a result, server images for non-amd64 images copy in the go-runner
amd64 binary instead of the go-runner that matches that architecture.

This commit explicitly sets the '--platform=linux/${arch}' to ensure
we're pulling the correct go-runner arch from the manifest list.

Before:
FROM ${base_image}

After:
FROM --platform=linux/${arch} ${base_image}

Signed-off-by: Stephen Augustus <saugustus@vmware.com>
This commit is contained in:
Stephen Augustus
2020-09-05 04:45:42 -04:00
parent 0921f645a3
commit 3ab1a49766
2 changed files with 3 additions and 4 deletions
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4
build/lib/release.sh
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@@ -334,7 +334,7 @@ function kube::release::create_docker_images_for_server() {
local images_dir
binary_dir="$1"
arch="$2"
binaries=$(kube::build::get_docker_wrapped_binaries "${arch}")
binaries=$(kube::build::get_docker_wrapped_binaries)
images_dir="${RELEASE_IMAGES}/${arch}"
mkdir -p "${images_dir}"
@@ -375,7 +375,7 @@ function kube::release::create_docker_images_for_server() {
ln "${KUBE_ROOT}/build/nsswitch.conf" "${docker_build_path}/nsswitch.conf"
chmod 0644 "${docker_build_path}/nsswitch.conf"
cat <<EOF > "${docker_file_path}"
FROM ${base_image}
FROM --platform=linux/${arch} ${base_image}
COPY ${binary_name} /usr/local/bin/${binary_name}
EOF
# ensure /etc/nsswitch.conf exists so go's resolver respects /etc/hosts