Update docker-compose example

docker-compose.example.yml

@@ -0,0 +1,68 @@
+version: "3"
+
+services:
+  db:
+    image: mariadb
+    restart: always
+    environment:
+      - MYSQL_DATABASE=photoview
+      - MYSQL_USER=photoview
+      - MYSQL_PASSWORD=photo-secret
+      - MYSQL_RANDOM_ROOT_PASSWORD=1
+    volumes:
+      - db_data:/var/lib/mysql
+
+  api:
+    build: ./api
+    restart: always
+    expose:
+      - 80
+    depends_on:
+      - db
+    environment:
+      - MYSQL_URL=photoview:photo-secret@tcp(db)/photoview
+      - PHOTO_CACHE=/app/cache
+      # Change This: The publicly exposed url for the api
+      # For example if the server is available from the domain example.com,
+      # change this value to http://example.com/api
+      - API_ENDPOINT=http://localhost:8080/api
+      - PUBLIC_ENDPOINT=http://localhost:8080/
+      - API_LISTEN_PORT=80
+    volumes:
+      # Change This: Link photo paths from the host machine
+      # Change this to the directory where your photos are located on your server.
+      # If the photos are located at `/home/user/photos`, then change this value
+      # to the following: `/home/user/photos:/photos:ro`.
+      # You can mount multiple paths, if your photos are spread across multiple directories.
+      - ./photos_path:/photos:ro
+      - api_cache:/app/cache
+
+  ui:
+    build:
+      context: ./ui
+      args:
+        # Change This: The publicly exposed url for the graphql api
+        # For example if the server is available from the domain example.com,
+        # change this value to http://example.com/api/graphql
+        GRAPHQL_ENDPOINT: http://localhost:8080/api/graphql
+    restart: always
+    expose:
+      - 80
+    depends_on:
+      - api
+
+  proxy:
+    image: nginx
+    restart: always
+    volumes:
+      - ./docker/nginx-proxy/default.conf:/etc/nginx/conf.d/default.conf
+    ports:
+      # Change This: Replace 8080 with the port you want photoview to be accessible at
+      - 8080:80
+    depends_on:
+      - api
+      - ui
+
+volumes:
+  db_data:
+  api_cache: