Add Drone CI pipeline

.drone.yml

@@ -0,0 +1,23 @@
+kind: pipeline
+type: docker
+name: build_and_push
+
+steps:
+  - name: build_docker_image
+    image: plugins/docker
+    settings:
+      repo: adminsoftwarecraft/opengis
+      tags:
+        - latest
+        - ${DRONE_COMMIT_SHA}
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+      dockerfile: Dockerfile
+      build_args:
+        - NODE_ENV=production
+
+trigger:
+  event:
+    - push