add docker compose file

docker-compose.yml

@@ -0,0 +1,18 @@
+version: '2'
+services:
+    cache:
+        image: memcached
+    db:
+        image: mariadb
+        environment:
+            MYSQL_ROOT_PASSWORD: toor
+            MYSQL_DATABASE: wiki
+    web:
+        build: .
+        volumes:
+            - ./data:/var/lib/mediawiki
+        ports:
+            - "8001:80"
+        links:
+            - db
+            - cache