build: add experimental release action (opensearch-project#221)

Signed-off-by: Yulong Ruan <[email protected]>

.github/workflows/experimental-release.yml

@@ -0,0 +1,65 @@
+name: experimental-release
+
+on:
+  workflow_dispatch:
+    inputs:
+      opensearch_dashboards_version:
+        description: 'Which version of OpenSearch-Dashboards that this build is targeting'
+        required: false
+        default: '2.x'
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    env:
+      RELEASE_TAG: ${{ github.event.inputs.opensearch_dashboards_version }}-experimental.${{ github.run_id }}
+
+    steps:
+      - run: echo Target OpenSearch-Dashboards version ${{ github.event.inputs.opensearch_dashboards_version }}
+      - name: Checkout OpenSearch Dashboards
+        uses: actions/checkout@v2
+        with:
+          repository: opensearch-project/OpenSearch-Dashboards
+          ref: ${{ github.event.inputs.opensearch_dashboards_version }}
+          path: OpenSearch-Dashboards
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: './OpenSearch-Dashboards/.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+      - name: Install Yarn
+        # Need to use bash to avoid having a windows/linux specific step
+        shell: bash
+        run: |
+          YARN_VERSION=$(node -p "require('./OpenSearch-Dashboards/package.json').engines.yarn")
+          echo "Installing yarn@$YARN_VERSION"
+          npm i -g yarn@$YARN_VERSION
+      - run: node -v
+      - run: yarn -v
+      - name: Checkout ML Commons OpenSearch Dashboards plugin
+        uses: actions/checkout@v2
+        with:
+          path: OpenSearch-Dashboards/plugins/ml-commons-dashboards
+      - name: Bootstrap plugin/opensearch-dashboards
+        run: |
+          cd OpenSearch-Dashboards/plugins/ml-commons-dashboards
+          yarn osd bootstrap
+      - name: Run build
+        run: |
+          cd OpenSearch-Dashboards/plugins/ml-commons-dashboards
+          yarn run build
+      - name: Create Release Tag
+        run: |
+          cd OpenSearch-Dashboards/plugins/ml-commons-dashboards
+          git tag ${{ env.RELEASE_TAG }}
+          git push origin ${{ env.RELEASE_TAG }}
+      - name: Release
+        id: release_step
+        uses: softprops/action-gh-release@v1
+        with:
+          files: OpenSearch-Dashboards/plugins/ml-commons-dashboards/build/*.zip
+          tag_name: ${{ env.RELEASE_TAG }}
+      - name: Update Artifact URL
+        run: |
+          echo ${{ steps.release_step.outputs.assets }}