List Route resources

Note: This guide only supports Cloud Service Mesh with Google Cloud APIs and does not support Istio APIs. For more information see, Cloud Service Mesh overview.

This document is for mesh administrators using the service routing APIs to configure service meshes.

In the service routing API model, Route resources are attached to Mesh or Gateway resources. In its configuration, the Mesh or Gateway resource references one or more Route resources.

If you are the owner of a Mesh or Gateway resource, you can list the Route resources attached to the Mesh or Gateway.

Each Mesh or Gateway resource has synthetic child collection of RouteView resources. Each RouteView corresponds to a single Route. RouteView objects are created alongside Route objects.

In the following diagram, the RouteView for Gateway A consists of the TCPRoute resources from Project A. The RouteView for Gateway B comprises the HTTPRoute resources from Project B and GRPCRoute resources from Project C.

The relationships among the `Route`, `Routeview`, and `Gateway` resources.(click to enlarge)

This feature is scoped to the Mesh or Gateway level. A RouteView for a Gateway or Mesh lists routes attached to that Gateway or Mesh and not all the routes attached to the associated scope.

To list the RouteView resources, issue the following command:

gcloud alpha network-services route-views list \
    --location=global \
    --[mesh | gateway]=[ MESH_NAME | GATEWAY_NAME ]

To get more information on the Route itself, issue the following command:

gcloud alpha network-services route-views describe --route-view=ROUTEVIEW_FULLNAME

A common workflow would be be listing the RouteViews for a Mesh or Gateway then describing each for a full overview of the attached Routes.

Note: Google Cloud CLI wraps two endpoints for convenience. When you use the API directly, the specific Mesh or Gateway endpoint and associated requests must be used for the appropriate parent(Mesh or Gateway).

You cannot create, update, or delete RouteView resources. They are created, updated, and deleted when their corresponding Route resources are created, updated, and deleted.

Troubleshooting

Important: RouteViews were backfilled for existing resources as 'best effort' and will continue to self-heal during the course of normal HttpRoute, GrpcRoute, TcpRoute, and TlsRoute update operations. Routes not updated on or before 2024-08-20 may not be reflected with RouteViews for projects with certain security configurations.

If the route-views commands fail to list RouteViews for routes such as Listed 0 items. or not listing all known routes:

• Verify that the Mesh or Gateway used in the route-views list are referenced within the Route's meshes or gateways fields, respectively using:
• gcloud network-services [http-routes|grpc-routes|tcp-routes|tls-routes] describe \
      --location global ROUTE_ID

• For customers with many resources, create a support ticket for assistance.
• Manually Trigger an update for your Route/s
• Reimporting the route
1. gcloud network-services http-routes export my-route --location=global \
         --destination=export.yaml

2. gcloud network-services http-routes import my-route --location=global \
         --source=export.yaml

• For customers using the generated NetworkServices client, call appropriate NetworkServices.Update*Route API.
• Modify description to trigger Terraform automation.

What's next

• For information about how service routing works, read Service routing overview
• For information about the service routing APIs, read the documentation for the network services APIs.