Add kubernetes/cri-api to cAdvisor

Makefile

@@ -91,6 +91,8 @@ docker-build:
 presubmit: vet
 	@echo ">> checking go formatting"
 	@./build/check_gofmt.sh
+	@echo ">> checking CRI definitions"
+	@./build/check_cri_defs.sh
 	@echo ">> checking go mod tidy"
 	@./build/check_gotidy.sh
 	@echo ">> checking file boilerplate"

build/boilerplate/boilerplate.py

@@ -95,7 +95,7 @@ def file_passes(filename, refs, regexs):
 def file_extension(filename):
     return os.path.splitext(filename)[1].split(".")[-1].lower()
 
-skipped_dirs = ['Godeps', 'vendor', 'third_party', '_gopath', '_output', '.git']
+skipped_dirs = ['Godeps', 'vendor', 'third_party', '_gopath', '_output', '.git', 'cri-api']
 def normalize_files(files):
     newfiles = []
     for pathname in files:

build/check_cri_defs.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+# Copyright 2021 Google Inc. All rights reserved.
+#
+# 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.
+
+# Presubmit script that ensures that https://github.com/kubernetes/cri-api
+# definitions that are copied into cAdvisor codebase exactly match the ones upstream.
+
+set -e
+
+function check_git_dirty() {
+  if ! [ -z "$(git status --porcelain)" ]; then
+    echo ">>> working tree is not clean"
+    echo ">>> git status:"
+    echo "$(git status)"
+    exit 1
+  fi
+}
+
+GIT_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+check_git_dirty
+
+echo ">>> updating k8s CRI definitions..."
+"${GIT_ROOT}/build/update_cri_defs.sh"
+
+# If k8s CRI definitions were manually modified or don't match the ones
+# upstream, git tree will be unclean.
+echo ">>> checking git tree clean after updating k8s CRI definitions..."
+check_git_dirty

build/update_cri_defs.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# Copyright 2021 Google Inc. All rights reserved.
+#
+# 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.
+
+set -e
+
+CRI_VERSION="release-1.22"
+GIT_ROOT=$(dirname "${BASH_SOURCE}")/..
+
+TMP_DIR="$(mktemp -d)"
+git clone --depth=1 https://github.com/kubernetes/cri-api.git --branch="${CRI_VERSION}" "${TMP_DIR}"
+
+# rewrite import paths
+find "${TMP_DIR}" -type f -name "*.go" -exec sed -i 's:k8s.io/cri-api:github.com/google/cadvisor/cri-api:g' {} +
+
+mkdir -p "${GIT_ROOT}/cri-api"
+cp -r "${TMP_DIR}/pkg" "${GIT_ROOT}/cri-api"
+rm -rf "${TMP_DIR}"

cri-api/pkg/OWNERS

@@ -0,0 +1,15 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+# Disable inheritance as this is owned by sig-node (should mirror same contents as pkg/kubelet/OWNERS)
+options:
+  no_parent_owners: true
+
+approvers:
+- sig-node-approvers # see https://github.com/kubernetes/kubernetes/blob/master/OWNERS_ALIASES#LC220:~:text=sig%2Dnode%2Dapprovers
+
+reviewers:
+- sig-node-reviewers # see https://github.com/kubernetes/kubernetes/blob/master/OWNERS_ALIASES#LC220:~:text=sig%2Dnode%2Dreviewers
+
+labels:
+- area/kubelet
+- sig/node