Update docker-compose to use latest official images (microsoft#183)

* Update docker-compose.yml

docker-compose.yml

@@ -1,29 +1,14 @@
-version: '3.4'
-
 services:
   garnet:
-    restart: always
-    image: garnet
-    build:
-      context: .
-      dockerfile: Dockerfile
+    image: 'ghcr.io/microsoft/garnet'
+    ulimits:
+      memlock: -1
     ports:
-      - "3278:3278"
-
-  # garnet.nanoserver-x64:
-  #   restart: always
-  #   image: garnet.nanoserver-x64
-  #   build:
-  #     context: .
-  #     dockerfile: Dockerfile.nanoserver-x64
-  #   ports:
-  #     - "3278:3278"
-
-  # garnet.ubuntu-x64:
-  #   restart: always
-  #   image: garnet.ubuntu-x64
-  #   build:
-  #     context: .
-  #     dockerfile: Dockerfile.ubuntu-x64
-  #   ports:
-  #     - "3278:3278"
+      - "6379:6379"
+    # To avoid docker NAT, consider `host` mode.
+    # https://docs.docker.com/compose/compose-file/compose-file-v3/#network_mode
+    # network_mode: "host"
+    volumes:
+      - garnetdata:/data
+volumes:
+  garnetdata: