I'm trying to delete a path with it's backend from an ingress rule but can't quite get it to work.
This is how I try to delete it:
// get path to delete
Optional<HTTPIngressPath> pathToDelete = kubernetesClient.extensions().ingresses().withName("my-ingress")
.get()
.getSpec()
.getRules()
.get(0)
.getHttp()
.getPaths().stream()
.filter(path -> path.getBackend().getServiceName().equals(buildServiceNameById(id))).findFirst();
if(!pathToDelete.isPresent()) {
LOGGER.warn("Couldn't determine ingress path for " + buildServiceNameById(id) + ".");
return;
}
kubernetesClient.extensions().ingresses().withName("my-ingress")
.edit()
.editSpec()
.editFirstRule()
.editHttp()
.removeFromPaths(pathToDelete.get())
.endHttp()
.endRule()
.endSpec()
.done();
LOGGER.info("Deleted ingress routing " + pathToDelete.toString());
When I look at the logs I can see that it finds the path and outputs this:
Deleted ingress routing Optional[HTTPIngressPath(backend=IngressBackend(serviceName=my-service-6, servicePort=IntOrString(IntVal=8080, Kind=null, StrVal=null, additionalProperties={}), additionalProperties={}), path=/myservice/6, additionalProperties={})]
But when I describe the ingress, I can see that the rule is still there:
Name: my-ingress
Namespace: default
Address: someAdress
Default backend: default-http-backend:80 (<none>)
Rules:
Host Path Backends
---- ---- --------
someHost
/ admin:8888 (<none>)
/myservice/6 my-service-6:8080 (<none>)
Annotations:
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Success 21m public Successfully applied ingress resource.
Warning ConfigReloadFailure 21m public Failed to apply ingress resource.
Warning ConfigReloadFailure 21m public Failed to apply ingress resource.
Warning ConfigReloadFailure 20m public Failed to apply ingress resource.
Normal Success 18m public Successfully applied ingress resource.
Normal Success 18m public Successfully applied ingress resource.
Normal Success 17m public Successfully applied ingress resource.
Normal Success 16m public Successfully applied ingress resource.
So my question is: How do I use the kubernetes-client-java to dynamically delete a path in Ingress? I created the rule with the kubernetes-client, so I know it's working in theory, I just can't get it to delete it again.
You can delete igress like this:
k8sClient.extensions().ingresses().withName("my-ingress").delete();