wip: feat(ci): Build docker container

.drone.yml

@@ -8,6 +8,12 @@ services:
     environment:
       POSTGRES_USER: postgres
       POSTGRES_PASSWORD: postgres
+  - name: docker
+    image: docker:dind
+    privileged: true
+    volumes:
+      - name: dockersock
+        path: /var/run
 
 trigger:
   event:
@@ -95,11 +101,24 @@ steps:
       - name: cache
         path: /cache
 
+  - name: build & publish container?
+    image: docker:dind
+    volumes:
+      - name: dockersock
+        path: /var/run
+    commands:
+      - sleep 5 # give docker time to start
+      - docker ps -a
+        - docker build --tag mitgliederverwaltung .
+
 volumes:
   - name: cache
     host:
       path: /tmp/drone_cache
 
+  - name: dockersock
+    temp: {}
+
 ---
 kind: pipeline
 type: docker