Add drone pipeline

.drone.yml

@@ -0,0 +1,18 @@
+---
+kind: pipeline
+type: docker
+name: build
+
+steps:
+  - name: docker
+    image: plugins/docker
+    settings:
+      registry: docker.cybre.town
+      repo: docker.cybre.town/adb/adb.sh
+      tags:
+        - "${DRONE_COMMIT_SHA:0:8}"
+        - "latest"
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password