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kubernetes-client / java

Official Java client library for kubernetes
http://kubernetes.io/
Apache License 2.0
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list listPodForAllNamespaces error #3390

Open luca-ma opened 1 month ago

luca-ma commented 1 month ago

Describe the bug Hi, I'm using your example https://github.com/kubernetes-client/java/blob/master/examples/examples-release-18/src/main/java/io/kubernetes/client/examples/Example.java to get all Pod in a K8s cluster.

CoreV1Api.listPodForAllNamespaces return a 401 response.

Could you suggest how to configure the client to correctly access the cluster? thanks in advance luca

Client Version 13.0.0

Kubernetes Version 1.29

Java Version java 11

brendandburns commented 1 month ago

401 indicates that you are not authorized. That's probably not an error in this client, depending on where you are running the code you may need to add permissions for a pod service account or ensure that you have a kubeconfig file in the right location.

brendandburns commented 1 month ago

Also, client version 0.13.0 isvery old, please update to the latest client.

luca-ma commented 1 month ago

Hi, I have to access a k8s cluster to perform a simple read from outside the cluster itself (I can't use a kuconfig file). Could it be that the problem is the one listed here https://github.com/kubernetes-client/java/wiki/7.-FAQ ? thanks in advance luca

Il giorno mer 8 mag 2024 alle ore 18:31 Brendan Burns < @.***> ha scritto:

401 indicates that you are not authorized. That's probably not an error in this client, depending on where you are running the code you may need to add permissions for a pod service account or ensure that you have a kubeconfig file in the right location.

— Reply to this email directly, view it on GitHub https://github.com/kubernetes-client/java/issues/3390#issuecomment-2100961973, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABDNO6SPVJZKX7W5EDRL5RLZBJHM3AVCNFSM6AAAAABHM6QUOSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCMBQHE3DCOJXGM . You are receiving this because you authored the thread.Message ID: @.***>

luca-ma commented 1 month ago

OK thank you I'll switch to the latest version (20.0.1) regards luca

Il giorno mer 8 mag 2024 alle ore 18:31 Brendan Burns < @.***> ha scritto:

Also, client version 0.13.0 isvery old, please update to the latest client.

— Reply to this email directly, view it on GitHub https://github.com/kubernetes-client/java/issues/3390#issuecomment-2100962613, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABDNO6WYC5PKNELBUWYI7X3ZBJHOHAVCNFSM6AAAAABHM6QUOSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDCMBQHE3DENRRGM . You are receiving this because you authored the thread.Message ID: @.***>

brendandburns commented 1 month ago

That FAQ entry is for Pods running inside the cluster, but it sounds like you are accessing from outside the cluster.

In that case you need some way to authenticate and authorize your client. The easiest way to do that is to supply a Kubeconfig file, alternately you can set up the client programatically with a certificate/token for doing authentication, but that is definitely harder.