Images: Rework. (1/3) (#13014)

Co-authored-by: Marco Ebert <marco_ebert@icloud.com>

hack/init-buildx.sh

@@ -1,56 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2020 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-if [ -n "$DEBUG" ]; then
-	set -x
-fi
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-export DOCKER_CLI_EXPERIMENTAL=enabled
-
-if ! docker buildx 2>&1 >/dev/null; then
-  echo "buildx not available. Docker 19.03 or higher is required with experimental features enabled"
-  exit 1
-fi
-
-# Ensure qemu is in binfmt_misc
-# Docker desktop already has these in versions recent enough to have buildx
-# We only need to do this setup on linux hosts
-if [ "$(uname)" == 'Linux' ]; then
-  # NOTE: this is pinned to a digest for a reason!
-  # Note2 (@rikatz) - Removing the pin, as apparently it's breaking new alpine builds
-  # docker run --rm --privileged multiarch/qemu-user-static@sha256:28ebe2e48220ae8fd5d04bb2c847293b24d7fbfad84f0b970246e0a4efd48ad6 --reset -p yes
-  docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-fi
-
-# We can skip setup if the current builder already has multi-arch
-# AND if it isn't the docker driver, which doesn't work
-current_builder="$(docker buildx inspect)"
-# linux/amd64, linux/arm, linux/arm64
-if ! grep -q "^Driver: docker$"  <<<"${current_builder}" && \
-     grep -q "linux/amd64" <<<"${current_builder}" && \
-     grep -q "linux/arm"   <<<"${current_builder}" && \
-     grep -q "linux/arm64" <<<"${current_builder}"; then
-  exit 0
-fi
-
-
-# Ensure we use a builder that can leverage it (the default on linux will not)
-docker buildx rm ingress-nginx || true
-docker buildx create --use --name=ingress-nginx