images: Move kube-cross image building to k/release

OWNERS_ALIASES

@@ -22,6 +22,18 @@ aliases:
     - listx
     - ps882
     - sumitranr
+  build-image-approvers:
+    - BenTheElder
+    - cblecker
+    - dims
+    - justaugustus
+    - listx
+  build-image-reviewers:
+    - BenTheElder
+    - cblecker
+    - dims
+    - justaugustus
+    - listx
   krel-approvers:
     - hasheddan
     - hoegaarden

images/build/OWNERS

@@ -0,0 +1,8 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+options:
+  no_parent_owners: true
+approvers:
+  - build-image-approvers
+reviewers:
+  - build-image-reviewers

images/build/cross/Dockerfile

@@ -0,0 +1,79 @@
+# 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.
+
+# This file creates a standard build environment for building cross
+# platform go binary for the architecture kubernetes cares about.
+
+FROM golang:1.13.8
+
+ENV GOARM 7
+ENV KUBE_DYNAMIC_CROSSPLATFORMS \
+  armhf \
+  arm64 \
+  s390x \
+  ppc64el
+
+ENV KUBE_CROSSPLATFORMS \
+  linux/386 \
+  linux/arm linux/arm64 \
+  linux/ppc64le \
+  linux/s390x \
+  darwin/amd64 darwin/386 \
+  windows/amd64 windows/386
+
+# Pre-compile the standard go library when cross-compiling. This is much easier now when we have go1.5+
+RUN for platform in ${KUBE_CROSSPLATFORMS}; do GOOS=${platform%/*} GOARCH=${platform##*/} go install std; done \
+    && go clean -cache
+
+# Install g++, then download and install protoc for generating protobuf output
+RUN apt-get update \
+  && apt-get install -y rsync jq apt-utils file patch unzip \
+  && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+# Use dynamic cgo linking for architectures other than amd64 for the server platforms
+# To install crossbuild essential for other architectures add the following repository.
+RUN echo "deb http://archive.ubuntu.com/ubuntu xenial main universe" > /etc/apt/sources.list.d/cgocrosscompiling.list \
+  && apt-key adv --no-tty --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 3B4FE6ACC0B21F32 \
+  && apt-get update \
+  && apt-get install -y build-essential \
+  && for platform in ${KUBE_DYNAMIC_CROSSPLATFORMS}; do apt-get install -y crossbuild-essential-${platform}; done \
+  && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+RUN PROTOBUF_VERSION=3.0.2; ZIPNAME="protoc-${PROTOBUF_VERSION}-linux-x86_64.zip"; \
+  mkdir /tmp/protoc && cd /tmp/protoc \
+  && wget "https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOBUF_VERSION}/${ZIPNAME}" \
+  && unzip "${ZIPNAME}" \
+  && chmod -R +rX /tmp/protoc \
+  && cp -pr bin /usr/local \
+  && cp -pr include /usr/local \
+  && rm -rf /tmp/protoc \
+  && protoc --version
+
+# work around 64MB tmpfs size in Docker 1.6
+ENV TMPDIR /tmp.k8s
+RUN mkdir $TMPDIR \
+  && chmod a+rwx $TMPDIR \
+  && chmod o+t $TMPDIR
+
+# Get the code coverage tool and goimports
+RUN go get golang.org/x/tools/cmd/cover \
+           golang.org/x/tools/cmd/goimports \
+    && go clean -cache
+
+# Download and symlink etcd. We need this for our integration tests.
+RUN export ETCD_VERSION=v3.2.24; \
+  mkdir -p /usr/local/src/etcd \
+  && cd /usr/local/src/etcd \
+  && curl -fsSL https://github.com/coreos/etcd/releases/download/${ETCD_VERSION}/etcd-${ETCD_VERSION}-linux-amd64.tar.gz | tar -xz \
+  && ln -s ../src/etcd/etcd-${ETCD_VERSION}-linux-amd64/etcd /usr/local/bin/

images/build/cross/Makefile

@@ -0,0 +1,47 @@
+# 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.
+
+.PHONY:	build push
+
+STAGING_REGISTRY?=gcr.io/k8s-staging-build-image
+PROD_REGISTRY?=us.gcr.io/k8s-artifacts-prod/build-image
+IMAGE=kube-cross
+
+TAG?=kubernetes-$(shell git describe --tags --match='v*' --abbrev=14)
+KUBE_CROSS_VERSION=$(shell cat VERSION)
+# TODO: Support multi-arch kube-cross images
+#       ref:
+#       - https://github.com/kubernetes/release/pull/1140/commits/e96924f58d9ce2bb73045fbba13f259b4345c0d9#r395056830
+#       - https://github.com/kubernetes/kubernetes/issues/78964
+#       - https://github.com/kubernetes/kubernetes/issues/75114
+ARCH=amd64
+
+all: build push
+
+build:
+	docker build \
+		-t $(STAGING_REGISTRY)/$(IMAGE)-$(ARCH):$(TAG) \
+		-t $(STAGING_REGISTRY)/$(IMAGE)-$(ARCH):$(KUBE_CROSS_VERSION) \
+		-t $(PROD_REGISTRY)/$(IMAGE)-$(ARCH):$(KUBE_CROSS_VERSION) \
+		.
+
+push:
+	docker push $(STAGING_REGISTRY)/$(IMAGE)-$(ARCH):$(TAG)
+	docker push $(STAGING_REGISTRY)/$(IMAGE)-$(ARCH):$(KUBE_CROSS_VERSION)
+	docker manifest create --amend $(STAGING_REGISTRY)/$(IMAGE):$(KUBE_CROSS_VERSION) \
+		$(STAGING_REGISTRY)/$(IMAGE)-$(ARCH):$(KUBE_CROSS_VERSION)
+	docker manifest annotate $(STAGING_REGISTRY)/$(IMAGE):$(KUBE_CROSS_VERSION) \
+		$(STAGING_REGISTRY)/$(IMAGE)-$(ARCH):$(KUBE_CROSS_VERSION) \
+		--arch $(ARCH)
+	docker manifest push -p $(STAGING_REGISTRY)/$(IMAGE):$(KUBE_CROSS_VERSION)

images/build/cross/VERSION

@@ -0,0 +1 @@
+v1.13.8-1

images/build/cross/cloudbuild.yaml

@@ -0,0 +1,13 @@
+# See https://cloud.google.com/cloud-build/docs/build-config
+timeout: 1200s
+options:
+  substitution_option: ALLOW_LOOSE
+steps:
+  - name: 'gcr.io/k8s-testimages/gcb-docker-gcloud:v20191019-6567e5c'
+    entrypoint: make
+    env:
+    - DOCKER_CLI_EXPERIMENTAL=enabled
+    args:
+    - all
+images:
+  - 'gcr.io/$PROJECT_ID/kube-cross:kubernetes-${_GIT_TAG}'