Correct release build trigger. (#34)

.github/workflows/release.yml

@@ -1,13 +1,13 @@
 name: release
 
 on:
-  push:
-    tags:
-      - 'v*'
+  release:
+    types:
+      - published
 
 env:
   GCS_BUCKET: images.metal-pod.io
-      
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -19,6 +19,11 @@ jobs:
             version: '278.0.0'
             service_account_email: ${{ secrets.GCP_SA_EMAIL }}
             service_account_key: ${{ secrets.GCP_SA_KEY }}
+      - name: Get release
+        id: get_release
+        uses: bruceadams/[email protected]
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Build image
         uses: metal-stack/action-docker-make@master
         with:
@@ -33,22 +38,12 @@ jobs:
           cp metal-hammer-initrd.img.lz4* images/metal-hammer/${GITHUB_REF##*/}
       - name: Upload image tarballs to GCS
         run: gsutil -m cp -r -p images/metal-hammer gs://$GCS_BUCKET
-      - name: Create Release
-        id: create_release
-        uses: actions/[email protected]
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: metal-hammer ${{ github.ref }}
-          draft: false
-          prerelease: false
       - name: Upload Release Asset
         uses: actions/[email protected]
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          upload_url: ${{ steps.get_release.outputs.upload_url }}
           asset_path: metal-hammer-initrd.img.lz4
           asset_name: metal-hammer-initrd.img.lz4
           asset_content_type: application/gzip
@@ -57,7 +52,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          upload_url: ${{ steps.get_release.outputs.upload_url }}
           asset_path: metal-hammer-initrd.img.lz4.md5
           asset_name: metal-hammer-initrd.img.lz4.md5
-          asset_content_type: text/html
+          asset_content_type: text/html