add CI pipeline configuration

.drone.yml

@@ -0,0 +1,31 @@
+kind: pipeline
+type: docker
+name: default
+
+trigger:
+  branch:
+    - deployment
+  event:
+    - push
+
+steps:
+  - name: build-and-push-to-gitea-registry
+    image: plugins/docker:20.16
+    settings:
+      registry: git.internet-master.cz
+      repo: git.internet-master.cz/fencl/martinfencl.eu
+      context: .
+      dockerfile: Dockerfile
+      tags:
+        - latest
+      username: fencl
+      password:
+        from_secret: REGISTRY_PASSWORD
+
+  - name: call-portainer-webhook
+    image: curlimages/curl
+    environment:
+      PORTAINER_WEBHOOK:
+        from_secret: PORTAINER_WEBHOOK
+    commands:
+      - curl -fsS -X POST "$PORTAINER_WEBHOOK"