Drone CI

(cherry picked from commit 34c3effdde)

.drone.yml

@@ -0,0 +1,17 @@
+kind: pipeline
+name: default
+
+steps:
+- name: docker  
+  image: plugins/docker
+  settings:
+    dockerfile: exp.Dockerfile
+    registry: https://git.ivasoft.cz
+    username:
+      from_secret: repo_user
+    password:
+      from_secret: repo_pass
+    repo: git.ivasoft.cz/sw/backuppc
+    tags:
+      - latest
+      - ${DRONE_TAG:-latest}