GHA: update docs when we merge to a release branch.

.github/workflows/website-updates.yml

@@ -0,0 +1,130 @@
+name: website-updates
+on:
+  push:
+    branches:
+      - release/*
+
+jobs:
+  repatriate-to-lts:
+    runs-on: ubuntu-latest
+
+    name: update-website-docs
+
+    env:
+      REF: ${{ github.ref }}
+      RUN: ${{ github.run_id }}
+      PUSH_ID: ${{ github.event.push_id }}
+      WEB_REPO: ${{ secrets.WEBSITE_REPO }}
+      GH_TAIL_REF: ${{ github.event.before }}
+      GIT_API_KEY: ${{ secrets.GH_GITHUB_API_KEY }}
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GIT_USER_NAME: ${{ secrets.GH_AUTO_USER }}
+      GIT_USER_EMAIL: ${{ secrets.GH_AUTO_EMAIL }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Git setup
+        shell: bash
+        run: |
+          git config --global user.email "$GIT_USER_EMAIL"
+          git config --global user.name "$GIT_USER_NAME"
+          git config --global --remove-section url."ssh://[email protected]" || true
+          git config --global "url.https://[email protected]" https://github.com
+
+      - name: Get yq
+        shell: bash
+        run: |
+          sudo snap install yq
+
+      - name: Install git subtree
+        shell: bash
+        run: |
+          sudo curl -fL https://raw.githubusercontent.com/LukeShu/git/lukeshu/next/2021-05-15/contrib/subtree/git-subtree.sh -o $(git --exec-path)/git-subtree && sudo chmod 755 $(git --exec-path)/git-subtree
+
+      - name: Get website repo
+        shell: bash
+        run: |
+          git clone https://github.com/$WEB_REPO.git /tmp/getambassador.io
+
+      - name: Get version
+        shell: bash
+        id: version
+        run: |
+          echo "::set-output name=version::$(yq eval .items.0.version docs/releaseNotes.yml)"
+
+      #- name: Get released item
+      #  shell: bash
+      #  run: |
+      #    yq eval .items.0 docs/releaseNotes.yml > /tmp/item.yml
+      # TODO: fix broken subtrees in docs repo and call a script to update .Y release
+
+      - name: Temporarily block .Y releases
+        shell: bash
+        run: |
+          [[ ! "${{steps.version.outputs.version}}" ==  *.0 ]]
+          [[ ! "${{steps.version.outputs.version}}" == *.0-* ]]
+
+      - name: Insert new version notes into docs repo
+        shell: bash
+        run: |
+          set -x
+          export LONG=${{steps.version.outputs.version}}
+          export SHORT=$(echo ${LONG%.*-*} | cut -d. -f1-2)
+          #export ITEM=$(cat /tmp/item.yml)
+          #yq eval-all '.items |= [env(ITEM)] + .' /tmp/getambassador.io/ambassador-docs/docs/edge-stack/$SHORT/releaseNotes.yml
+          #yq eval-all '.items |= [env(ITEM)] + .' /tmp/getambassador.io/ambassador-docs/docs/emissary/$SHORT/releaseNotes.yml
+          cp docs/releaseNotes.yml /tmp/getambassador.io/ambassador-docs/docs/edge-stack/$SHORT/releaseNotes.yml
+
+      - name: Prerelease docs update
+        shell: bash
+        # according to Luke this will hit only and all pre-releases
+        if: contains(steps.version.outputs.version, '-')
+        run: |
+          #export ITEM=$(cat /tmp/item.yml)
+          #yq eval-all '.items |= [env(GITEM)] + .' /tmp/getambassador.io/ambassador-docs/docs/edge-stack/pre-release/releaseNotes.yml
+          #yq eval-all '.items |= [env(GITEM)] + .' /tmp/getambassador.io/ambassador-docs/docs/emissary/pre-release/releaseNotes.yml
+          cp docs/releaseNotes.yml /tmp/getambassador.io/ambassador-docs/docs/edge-stack/pre-release/releaseNotes.yml
+
+      - name: Update website repo
+        shell: bash
+        run: |
+          set -x
+          pushd /tmp/getambassador.io
+          git checkout -b rel/edge-stack/v${{steps.version.outputs.version}}
+          git add .
+          git commit -s -m "Update ambassador-docs subtree to latest following Edge Stack ${{steps.version.outputs.version}} release"
+          git push --set-upstream origin rel/edge-stack/v${{steps.version.outputs.version}}
+
+      - name: Initialize Pull Request
+        id: pr
+        uses: vsoch/pull-request-action@master
+        env:
+          PULL_REQUEST_REPOSITORY: ${{ secrets.WEBSITE_REPO }}
+          PULL_REQUEST_TOKEN: ${{ secrets.GH_API_KEY }}
+          PULL_REQUEST_FROM_BRANCH: rel/edge-stack/v${{ steps.version.outputs.version }}
+          PULL_REQUEST_BRANCH: master
+          PULL_REQUEST_TITLE: '[CI] [v${{ steps.version.outputs.version }}] Release Branch'
+          PULL_REQUEST_BODY: >-
+            This PR contains updates from Edge Stack release ${{steps.version.outputs.version}}
+
+      #- name: Push docs
+      #  shell: bash
+      #  run: |
+      #    pushd /tmp/getambassador.io
+      #    make push-docs
+
+      - name: Slack notification
+        if: always()
+        uses: edge/simple-slack-notify@master
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+        with:
+          status: ${{ job.status }}
+          success_text: "Created website update PR for v${{steps.version.outputs.version}}"
+          failure_text: "Website update PR failed"
+          fields: |
+            [{ "title": "Repository", "value": "${env.GITHUB_REPOSITORY}", "short": true },
+             { "title": "Branch", "value": "${env.GITHUB_REF}", "short": true}]