Using *release* as workflow trigger, rather than branch push

.github/workflows/ci.yml

@@ -3,7 +3,8 @@ name: Release
 on:
   push:
     branches: [master,develop]
-    tags: '*'
+    release:
+      types: [created]
 
 jobs:
   jest:
@@ -86,7 +87,7 @@ jobs:
     name: 'Publish: PyPi'
     runs-on: ubuntu-latest
     needs: [jest, tox]
-    if: github.ref == 'refs/heads/master'
+    if: github.event_name == 'release' && github.event.action == 'created'
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
@@ -126,7 +127,7 @@ jobs:
     name: 'Publish: DockerHub'
     runs-on: ubuntu-latest
     needs: [jest, tox]
-    if: github.ref == 'refs/heads/master'
+    if: github.event_name == 'release' && github.event.action == 'created'
     steps:
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -134,13 +135,13 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Docker meta
+      - name: Generating tags and labels
         id: meta
         uses: docker/metadata-action@v4
         with:
           images: jaedb/iris
           tags: |
-            type=ref,event=branch
+            type=ref,event=release
             type=semver,pattern={{version}}
             type=semver,pattern={{major}}.{{minor}}
             type=raw,value=latest