v0.1 version: added ci, container, nginx + base apigw config

data/etc/nginx/apigw_backends.conf

@@ -0,0 +1,9 @@
+upstream identity_api {
+    # zone inventory_service 64k;
+    server identity_svc:8080; # container name from stack config
+}
+
+upstream basket_api {
+    # zone pricing_service 64k;
+    server basket_svc:8080; # container name from stack config
+}