Add dependabot and standard workflows

.github/workflows/release.yml

@@ -0,0 +1,89 @@
+name: Release Gem
+
+on: workflow_dispatch
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    if: github.repository == 'puppetlabs/vmpooler-dns-google-clouddns'
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Get Current Version
+        uses: actions/github-script@v6
+        id: cv
+        with:
+          script: |
+            const { data: response } = await github.rest.repos.getLatestRelease({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+            })
+            console.log(`The latest release is ${response.tag_name}`)
+            return response.tag_name
+          result-encoding: string
+
+      - name: Get Next Version
+        id: nv
+        run: |
+          version=$(grep VERSION lib/vmpooler-dns-google-clouddns/version.rb |rev |cut -d "'" -f2 |rev)
+          echo "version=$version" >> $GITHUB_OUTPUT
+          echo "Found version $version from lib/vmpooler-dns-google-clouddns/version.rb"
+
+      - name: Generate Changelog
+        uses: docker://githubchangeloggenerator/github-changelog-generator:1.16.2
+        with:
+          args: >-
+            --future-release ${{ steps.nv.outputs.version }}
+        env:
+          CHANGELOG_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Validate Changelog
+        run : |
+          set -e
+          if [[ -n $(git status --porcelain) ]]; then
+            echo "Here is the current git status:"
+            git status
+            echo
+            echo "The following changes were detected:"
+            git --no-pager diff
+            echo "Uncommitted PRs found in the changelog. Please submit a release prep PR of changes after running `./update-changelog`"
+            exit 1
+          fi
+
+      - name: Generate Release Notes
+        uses: docker://githubchangeloggenerator/github-changelog-generator:1.16.2
+        with:
+          args: >-
+            --since-tag ${{ steps.cv.outputs.result }}
+            --future-release ${{ steps.nv.outputs.version }}
+            --output release-notes.md
+        env:
+          CHANGELOG_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Tag Release
+        uses: ncipollo/release-action@v1
+        with:
+          tag: ${{ steps.nv.outputs.version }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+          bodyfile: release-notes.md
+          draft: false
+          prerelease: false
+
+      # This step should closely match what is used in `docker/Dockerfile` in vmpooler-deployment
+      - name: Install Ruby jruby-9.3.6.0
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 'jruby-9.3.6.0'
+
+      - name: Build gem
+        run: gem build *.gemspec
+
+      - name: Publish gem
+        run: |
+          mkdir -p $HOME/.gem
+          touch $HOME/.gem/credentials
+          chmod 0600 $HOME/.gem/credentials
+          printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+          gem push *.gem
+        env:
+          GEM_HOST_API_KEY: '${{ secrets.RUBYGEMS_AUTH_TOKEN }}'