Generate Changelog - Release Automation: Add cloud build target for r…

…elease builds (googleforgames#2884)

* Release target for cloud build job

* Added Cloudbuild File
* changing env variables
* changelog gen changes
* Handling CHANGELOG generation for both the release and RC
* Updating release document to incorporate new CHANGELOG generation make target
* Removed testing changes
* Updated release doc
* review changes

build/includes/release.mk

@@ -94,3 +94,12 @@ do-release: $(ensure-build-image)
 	git push -u upstream release-$(RELEASE_VERSION)
 
 	@echo "Now go make the $(RELEASE_VERSION) release on Github!"
+
+ifdef RC_RELEASE
+build-release: RELEASE_VERSION=$(base_version)-rc
+else
+build-release: RELEASE_VERSION=$(base_version)
+endif
+build-release: 
+	cd $(agones_path) && gcloud builds submit . --substitutions _VERSION=$(RELEASE_VERSION) --config=./build/release/cloudbuild.yaml $(ARGS)
+

build/release/cloudbuild.yaml

@@ -0,0 +1,45 @@
+# Copyright 2021 Google LLC
+#
+# 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.
+
+steps:
+  - name: gcr.io/cloud-builders/gsutil
+    entrypoint: bash
+    args:
+      - '-c'
+      - 'gsutil mb $_STORAGE || true'
+    id: create-bucket
+  - name: ferrarimarco/github-changelog-generator:1.15.0
+    id: changelog
+    entrypoint: sh
+    args:
+      - '-c'
+      - 'github_changelog_generator --user=googleforgames --project=agones --bug-labels=kind/bug --enhancement-labels=kind/feature --breaking-labels=kind/breaking --security-labels=area/security --exclude-labels=duplicate,question,invalid,wontfix,priority/wontfix --future-release "v${_VERSION}" --release-branch=main --token $$GH_TOKEN'
+    secretEnv:
+      - GH_TOKEN
+artifacts:
+  objects:
+    location: '$_STORAGE'
+    paths:
+      - 'CHANGELOG.md'
+options:
+  machineType: E2_HIGHCPU_32
+  dynamic_substitutions: true
+substitutions:
+  _STORAGE: gs://${PROJECT_ID}-agones-releases
+availableSecrets:
+  secretManager:
+    - versionName: projects/${PROJECT_ID}/secrets/release-github-token/versions/latest
+      env: GH_TOKEN
+timeout: 1800s
+

docs/governance/templates/release_issue.md

@@ -33,9 +33,11 @@ and copy it into a release issue. Fill in relevant values, found inside {}
 - [ ] If release candidate add the label `feature-freeze-do-not-merge` to any feature pull requests.
 - [ ] `git checkout main && git pull --rebase upstream main`
 - [ ] If full release, run `make release-deploy-site`
-- [ ] Run `make gen-changelog` to generate the CHANGELOG.md (if release candidate 
-  `make gen-changelog RELEASE_VERSION={version}-rc`). You will need your 
+- [ ] Run `make build-release` to generate the CHANGELOG.md (if release candidate
+  `RC_RELEASE=1 make build-release`). You will need your
   [GitHub Personal Access Token](https://github.com/settings/tokens) for this.
+- [ ] Download all the artifacts from the cloud build.
+- [ ] Move the CHANGELOG.md to the root of this repository, replacing any previous versions.
 - [ ] Ensure the [helm `tag` value][values] is correct (should be {version} if a full release, {version}-rc if release candidate)
 - [ ] Ensure the [helm `Chart` version values][chart] are correct (should be {version} if a full release, {version}-rc if release candidate)
 - [ ] Update SDK Package Versions