Build Docker image with correct tags

.drone.yml

@@ -11,6 +11,7 @@ steps:
       - dpkg -i hugo.deb
       - hugo --destination _site/
 
+  # stable site
   - name: docker
     image: plugins/docker
     settings:
@@ -22,7 +23,7 @@ steps:
         from_secret: DOCKER_PASSWORD
       tags:
         - "${DRONE_BUILD_NUMBER}"
-        - "hugo"
+        - "stable"
     when:
       branch:
         - main
@@ -30,6 +31,26 @@ steps:
         exclude:
         - pull_request
 
+  # staging site
+  - name: docker
+    image: plugins/docker
+    settings:
+      repo: docker.data.coop/data-coop-website
+      registry: docker.data.coop
+      username:
+        from_secret: DOCKER_USERNAME
+      password:
+        from_secret: DOCKER_PASSWORD
+      tags:
+        - "${DRONE_BUILD_NUMBER}"
+        - "staging"
+    when:
+      branch:
+        - staging
+      event:
+        exclude:
+        - pull_request
+
   - name: notify
     image: plugins/matrix
     settings: