Add CI integration

.drone.yml

@@ -0,0 +1,18 @@
+---
+kind: pipeline
+type: docker
+name: schwarzesbrett
+
+steps:
+  - name: build
+    image: tmaier/docker-compose
+    volumes:
+      - name: dockersock
+        path: /var/run/docker.sock
+    commands:
+      - docker-compose build schwarzesbrett
+
+volumes:
+  - name: dockersock
+    host:
+      path: /var/run/docker.sock

docker-compose.yml

@@ -2,7 +2,7 @@ version: "3"
 
 services:
   frontend:
-    image: "grimmigerfuchs:schwarzesbrett"
+    image: "grimmigerfuchs/schwarzesbrett"
     build: ./docker/schwarzesbrett
     container_name: frontend
     restart: always