added drone

.drone.yml

@@ -0,0 +1,29 @@
+kind: pipeline
+name: default
+type: docker
+
+steps:
+  - name: server
+    image: plugins/docker
+    environment:
+      DOCKER_BUILDKIT: 1
+    settings:
+      username: kasperhermansen
+      password:
+        from_secret:
+          docker_secret
+      repo: kasperhermansen/cuddle
+      tags: latest
+      context: .
+      dockerfile: templates/build_cuddle_image.Dockerfile
+      cache_from: kasperhermansen/cuddle:latest
+
+  - name: send telegram notification
+    image: appleboy/drone-telegram
+    settings:
+      token:
+        from_secret: telegram_token
+      to: 2129601481
+      format: markdown
+    when:
+      status: [failure]

templates/build_cuddle_image.Dockerfile.dockerignore

@@ -1 +1,2 @@
 .cuddle/
+.git/