Tag releases via PR

.github/workflows/tag-release.yml

@@ -0,0 +1,25 @@
+name: tag-release
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - version.txt
+
+jobs:
+  tag:
+    if: ${{ github.repository == 'kubernetes/node-problem-detector' }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - run: /usr/bin/git config --global user.email actions@github.com
+      - run: /usr/bin/git config --global user.name 'GitHub Actions Release Tagger'
+      - run: hack/tag-release.sh
+        id: tag_release
+    outputs:
+      release_tag: ${{ steps.tag_release.outputs.release_tag }}

hack/tag-release.sh

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+#!/bin/bash -xe
+
+# Copyright 2023 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.
+
+VERSION=$(cat version.txt)
+
+if [[ ! "${VERSION}" =~ ^v([0-9]+[.][0-9]+)[.]([0-9]+)(-(alpha|beta)[.]([0-9]+))?$ ]]; then
+  echo "Version ${VERSION} must be 'X.Y.Z', 'X.Y.Z-alpha.N', or 'X.Y.Z-beta.N'"
+  exit 1
+fi
+
+if [ "$(git tag -l "${VERSION}")" ]; then
+  echo "Tag ${VERSION} already exists"
+  exit 1
+fi
+
+git tag -a -m "Release ${VERSION}" "${VERSION}"
+git push origin "${VERSION}"
+
+echo "release_tag=refs/tags/${VERSION}" >> $GITHUB_OUTPUT

version.txt

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+v0.8.15