✨ Build and publish Kubernetes envtest tools as packages

.github/workflows/tools-releases.yml

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+name: Kubernetes Tools Releases for controller-runtime envtest
+
+on:
+  push:
+    branches:
+      - tools-releases
+
+env:
+  KUBERNETES_VERSION: 1.28.0
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        os:
+        - linux
+        - darwin
+        arch:
+        - amd64
+        - arm64
+        include:
+          - arch: ppc64le
+            os: linux
+          - arch: s390x
+            os: linux
+          - arch: amd64
+            os: windows
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Set up Docker
+        uses: docker/setup-buildx-action@v3
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./hack/tools/envtest/${{matrix.os}}/Dockerfile
+          build-args: |
+            KUBERNETES_VERSION=v${{env.KUBERNETES_VERSION}}
+            OS=${{matrix.os}}
+            ARCH=${{matrix.arch}}
+          push: true
+          tags: |
+            ghcr.io/kubernetes-sigs/controller-tools/envtest:${{env.KUBERNETES_VERSION}}-${{matrix.os}}-${{matrix.arch}}

hack/tools/envtest/darwin/Dockerfile

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+#  Copyright 2018 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.
+
+# Build or fetch the following binaries for darwin and then host them in a tar.gz file in an alpine image
+# - kube-apiserver (build)
+# - kubectl (fetch)
+# - etcd (fetch)
+
+FROM golang:1.21 as builder
+
+# Version and platform args.
+ARG KUBERNETES_VERSION
+ARG ETCD_VERSION=v3.5.13
+ARG OS=darwin
+ARG ARCH
+
+# Tools path.
+ENV DEST=/controller-tools/envtest
+
+# Install dependencies.
+RUN apt update && \
+    apt install unzip rsync -y && \
+    mkdir -p $DEST
+
+# kube-apiserver
+WORKDIR /kubernetes
+RUN git clone https://github.com/kubernetes/kubernetes . --depth=1 -b ${KUBERNETES_VERSION}
+ENV CGO_ENABLED=0
+ENV KUBE_BUILD_PLATFORMS=${OS}/${ARCH}
+RUN make WHAT=cmd/kube-apiserver && \
+    cp _output/local/bin/${KUBE_BUILD_PLATFORMS}/kube-apiserver $DEST
+
+# kubectl
+RUN /bin/bash -x -c ' \
+    { curl -sfLO https://storage.googleapis.com/kubernetes-release/release/${KUBERNETES_VERSION}/bin/${OS}/${ARCH}/kubectl && \
+      chmod +x kubectl && \
+      cp kubectl $DEST; } || \
+    { make WHAT=cmd/kubectl && \
+      cp _output/local/bin/${KUBE_BUILD_PLATFORMS}/kubectl $DEST; }'
+
+# etcd
+ENV ETCD_BASE_NAME=etcd-${ETCD_VERSION}-${OS}-${ARCH}
+RUN curl -sfLO https://github.com/coreos/etcd/releases/download/${ETCD_VERSION}/${ETCD_BASE_NAME}.zip && \
+    unzip -o ${ETCD_BASE_NAME}.zip && \
+    cp ${ETCD_BASE_NAME}/etcd $DEST
+
+# Build the final image with the binaries.
+FROM gcr.io/distroless/static:nonroot
+COPY --from=builder /controller-tools/envtest /controller-tools/envtest

hack/tools/envtest/linux/Dockerfile

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+#  Copyright 2018 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.
+
+FROM golang:1.21 as builder
+
+# Version and platform args.
+ARG KUBERNETES_VERSION
+ARG ETCD_VERSION=v3.5.13
+ARG OS=linux
+ARG ARCH
+
+# Tools path.
+ENV DEST=/controller-tools/envtest
+
+# Install dependencies.
+RUN apt update && \
+    apt install unzip rsync -y && \
+    mkdir -p $DEST
+
+# kube-apiserver
+RUN curl -sfLO https://dl.k8s.io/${KUBERNETES_VERSION}/bin/${OS}/${ARCH}/kube-apiserver && \
+    chmod +x kube-apiserver && \
+    cp kube-apiserver $DEST
+
+# kubectl
+RUN curl -sfLO https://storage.googleapis.com/kubernetes-release/release/${KUBERNETES_VERSION}/bin/${OS}/${ARCH}/kubectl && \
+    chmod +x kubectl && \
+    cp kubectl $DEST
+
+# etcd
+ENV ETCD_BASE_NAME=etcd-${ETCD_VERSION}-${OS}-${ARCH}
+RUN curl -sfLO https://github.com/coreos/etcd/releases/download/${ETCD_VERSION}/${ETCD_BASE_NAME}.tar.gz && \
+    tar xzf ${ETCD_BASE_NAME}.tar.gz && \
+    cp ${ETCD_BASE_NAME}/etcd $DEST
+
+# Build the final image with the binaries.
+FROM gcr.io/distroless/static:nonroot
+COPY --from=builder /controller-tools/envtest /controller-tools/envtest

hack/tools/envtest/windows/Dockerfile

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+#  Copyright 2018 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.
+
+# Build or fetch the following binaries for windows and then host them in a tar.gz file in an alpine image
+# - kube-apiserver (build)
+# - kubectl (fetch)
+# - etcd (fetch)
+
+FROM golang:1.21 as builder
+
+# Version and platform args.
+ARG KUBERNETES_VERSION
+ARG ETCD_VERSION=v3.5.13
+ARG OS=windows
+ARG ARCH
+
+# Tools path.
+ENV DEST=/controller-tools/envtest
+
+# Install dependencies.
+RUN apt update && \
+    apt install unzip rsync -y && \
+    mkdir -p $DEST
+
+# kube-apiserver
+WORKDIR /kubernetes
+RUN git clone https://github.com/kubernetes/kubernetes . --depth=1 -b ${KUBERNETES_VERSION}
+ENV CGO_ENABLED=0
+ENV KUBE_BUILD_PLATFORMS=${OS}/${ARCH}
+RUN make WHAT=cmd/kube-apiserver && \
+    cp _output/local/bin/${KUBE_BUILD_PLATFORMS}/kube-apiserver.exe $DEST
+
+# kubectl
+RUN /bin/bash -x -c ' \
+    { curl -sfLO https://storage.googleapis.com/kubernetes-release/release/${KUBERNETES_VERSION}/bin/${OS}/${ARCH}/kubectl.exe && \
+      chmod +x kubectl.exe &&  \
+      cp kubectl.exe $DEST; } || \
+    { make WHAT=cmd/kubectl && \
+      cp _output/local/bin/${KUBE_BUILD_PLATFORMS}/kubectl.exe $DEST; }'
+
+# etcd
+ENV ETCD_BASE_NAME=etcd-${ETCD_VERSION}-${OS}-${ARCH}
+RUN curl -sfLO https://github.com/coreos/etcd/releases/download/${ETCD_VERSION}/${ETCD_BASE_NAME}.zip && \
+    unzip -o ${ETCD_BASE_NAME}.zip && \
+    cp ${ETCD_BASE_NAME}/etcd.exe $DEST
+
+# Build the final image with the binaries.
+FROM gcr.io/distroless/static:nonroot
+COPY --from=builder /controller-tools/envtest /controller-tools/envtest