add drone CI

.drone.yml

@@ -0,0 +1,36 @@
+kind: pipeline
+name: default
+
+image_pull_secrets:
+  - docker_config_json
+
+trigger:
+  branch:
+    - master
+  event:
+    - push
+
+steps:
+  - name: build docker image
+    image: plugins/docker
+    settings:
+      registry: registry.decapod.one
+      username:
+        from_secret: registry.decapod.one-user
+      password:
+        from_secret: registry.decapod.one-password
+      auto_tag: true
+      repo: registry.decapod.one/brethil/dotfiles
+      dockerfile: Dockerfile
+      tags:
+        - latest
+
+  - name: notify
+    image: registry.decapod.one/toolchain:latest
+    environment:
+      BRETELLOFIER_TOKEN:
+        from_secret: bretellofier_token
+      BRETELLOFIER_RECIPIENTS:
+        from_secret: bretellofier_recipients
+    commands:
+      - echo "[drone] Succesfully built brethil/dotfiles" | bretellofier