ci: Define triggers per pipeline

.drone.yml

@@ -3,6 +3,11 @@ kind: pipeline
 type: docker
 name: "stage:build"
 
+trigger:
+  event:
+    - push
+    - pull_request
+
 services:
   - name: docker
     image: docker:dind
@@ -69,3 +74,22 @@ steps:
       # Build
       - make docker-push
 
+---
+kind: pipeline
+type: docker
+name: "stage:deploy"
+
+trigger:
+  event:
+    - promote
+  target:
+    - production
+
+steps:
+  - name: "deploy:prepare"
+    image: busybox
+    commands:
+      # Debug
+      - echo "No op"
+
+#