Fix deployment issues

src/Podsync/docker-compose.yml

@@ -21,9 +21,9 @@ services:
     volumes:
       - /data/redis:/data
   nginx:
-    image: nginx
+    build:
+      context: ./nginx
+      dockerfile: Dockerfile
     restart: always
     ports:
       - 80:80
-    volumes:
-      - ./nginx.conf:/etc/nginx/conf.d/default.conf

src/Podsync/nginx/Dockerfile

@@ -0,0 +1,3 @@
+FROM nginx
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf