istio.io/content/en/docs/reference/config/analysis/ist0137/index.md

title	layout	owner	test
DeploymentConflictingPorts	analysis-message	istio/wg-user-experience-maintainers	n/a

This message occurs when two services select the same workload with the same targetPort but different ports.

An example

Consider an Istio mesh with the following services:

{{< text yaml >}} apiVersion: v1 kind: Service metadata: name: nginx-a spec: ports: - port: 8080 protocol: TCP targetPort: 80 selector: app: nginx

apiVersion: v1 kind: Service metadata: name: nginx-b spec: ports: - port: 80 protocol: TCP targetPort: 80 selector: app: nginx {{< /text >}}

In this example, service nginx-a and service nginx-b select the same workload nginx with the same targetPort but different ports.

How to resolve

This may be fixed in one of two ways:

• Make both services use the same port. This will require reconfiguring the clients of one of the services to connect to a different port.
• Make both services use different targetPorts. This will require configuring the workload pods of one of the services to listen on the same targetPort as the other service.