linkerd2/bin/docker-build-cli-bin

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#!/usr/bin/env bash
set -eu
if [ $# -ne 0 ]; then
echo "no arguments allowed for ${0##*/}, given: $*" >&2
exit 64
fi
bindir=$( cd "${BASH_SOURCE[0]%/*}" && pwd )
rootdir=$( cd "$bindir"/.. && pwd )
# shellcheck source=_docker.sh
. "$bindir"/_docker.sh
# shellcheck source=_tag.sh
. "$bindir"/_tag.sh
dockerfile=$rootdir/cli/Dockerfile
# shellcheck disable=SC2046
docker_build cli-bin "${TAG:-$(head_root_tag)}" "$dockerfile" \
--build-arg LINKERD_VERSION="${TAG:-$(head_root_tag)}" \
--target="$DOCKER_TARGET"
IMG=$(docker_repo cli-bin):${TAG:-$(head_root_tag)}
ID=$(docker create "$IMG")
# copy the newly built linkerd cli binaries to the local system
OS=$DOCKER_TARGET
if [ "$DOCKER_TARGET" = 'multi-arch' ]; then
OS=$OS_ARCH_ALL
fi
for OS in $OS; do
DIR=$rootdir/target/cli/$OS
mkdir -p "$DIR"
# only copy if available
(docker cp "$ID:/out/linkerd-${OS}" "$DIR/linkerd" 2> /dev/null) && echo "$DIR/linkerd"
done
docker rm "$ID" >/dev/null