adding drone ci yaml

.drone.yml

@@ -0,0 +1,34 @@
+kind: pipeline
+type: docker
+name: default
+
+steps:
+- name: docker build and publish
+  image: docker:dind
+  volumes:
+  - name: dockersock
+    path: /var/run/docker.sock
+  commands:
+    - make build publish
+  when:
+    branch:
+    - master
+
+steps:
+- name: docker build
+  image: docker:dind
+  volumes:
+  - name: dockersock
+    path: /var/run/docker.sock
+  commands:
+    - make build
+  when:
+    branch:
+      exclude:
+      - master
+
+volumes:
+- name: dockersock
+  host:
+    path: /var/run/docker.sock
+