Accessing service’s DNS using namespace

Accessing service’s DNS using namespace

As we have seen before, when we create a service, Kubernetes will allow us to access that service with a DNS entry using the service name. So if we have a service called my-service, we can access it with something like $ curl http://my-service. These DNS entries are also scoped by namespace, so the path will be ., and when the namespace-name is omitted, the current namespace is assumed. Using the previous example, it would be the same thing as calling http://my-service.default. Let’s see that in action.

To make it easier to see what’s happening in our example, we will use the hellok8s image we have built before, running a different version in each namespace, and then we will create the exact same service in both namespaces.