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Cannot create informers to capture the pod metrics

See original GitHub issue

Tried to create informer with resource object PodMetrics and observed the below error:

Code Snippet:

 client.get.resources(classOf[PodMetrics]).inform()

Error message:

Failure executing: GET at: https://localhost:5125/apis/metrics.k8s.io/v1beta1/namespaces/default/podmetrics. 

Message: the server could not find the requested resource.

Listed the api-resources with APIVERSION “metrics.k8s.io/v1beta1”:

nodes                                          metrics.k8s.io/v1beta1                 false        NodeMetrics
pods                                           metrics.k8s.io/v1beta1                 true         PodMetrics

GET URL is supposed to be https://localhost:5125/apis/metrics.k8s.io/v1beta1/namespaces/default/pods

@rohanKanojia Please let me know how to capture the pod metrics using informers.

Issue Analytics

State:
Created 2 years ago
Comments:6 (5 by maintainers)

Top GitHub Comments

2reactions

vegouthacommented, Dec 17, 2021

Thanks @shawkins . Workaround provided in the above comment https://github.com/fabric8io/kubernetes-client/issues/3639#issuecomment-989868438 works for me.

2reactions

shawkinscommented, Dec 9, 2021

@vegoutha it looks like the metadata for pod and node metrics is not correct as it’s just using the default plural. The workaround would be to use generic logic:

client.genericKubernetesResources(new ResourceDefintionContext.Builder().withGroup(“metrics.k8s.io”).withVersion(“v1beta1”).withPlural(“pods”).withNamespaced(true).build()).inform

You can convert between a GenericKubernetesResource and PodMetrics by using Serialization.jsonMapper().convertValue(genericResource, PodMetrics.class) or just use the generic.