fix mainnet deploy (#2660)

.github/workflows/deploy_mainnet.yml

@@ -15,7 +15,47 @@ jobs:
   deploy-rooch-mainnet:
     name: Deploy Rooch Mainnet
     runs-on: self-hosted
+    if: |
+      github.event_name == 'workflow_dispatch' ||
+      (github.event.workflow_run.conclusion == 'success' &&
+      github.event.workflow_run.event == 'release' &&
+      (github.event.release.prerelease == true || github.event.release.prerelease == false))
     steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.ref }}
+
+      - name: Download Docker tag artifact
+        if: github.event_name == 'workflow_run'
+        uses: actions/download-artifact@v4
+        with:
+          name: docker_tag
+          path: .
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ secrets.GIT_PACKAGE_TOKEN }}
+
+      - name: Determine ref
+        id: determine-ref
+        run: |
+          if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
+            echo "REF=${{ github.event.inputs.ref }}" >> $GITHUB_ENV
+          else
+            if [[ "${{ github.event_name }}" == "workflow_run" ]]; then
+              echo "REF=$(cat docker_tag.txt)" >> $GITHUB_ENV
+            else
+              if [[ "${{ github.ref }}" == refs/tags/* ]]; then
+                REF=${GITHUB_REF#refs/tags/}
+              elif [[ "${{ github.ref }}" == refs/heads/* ]]; then
+                REF=${GITHUB_REF#refs/heads/}
+              fi
+              echo "REF=$REF" >> $GITHUB_ENV
+            fi
+          fi
+
+      - name: Print ref
+        run: echo "The Tag Ref is ${{ env.REF }} and The Branch Ref is ${{ github.ref }}"
+
       - name: Deploy to GCP MAINNET VM
         env:
           PRIVATE_KEY: ${{ secrets.GCP_MAINNET_SSH_PRIVATE_KEY }}