Kubernetes-client: Allow user to add custom header for k8s requests?

[wangyushuai]

Hey,
I encountered the following problem：

When I init a client instance, I want to add custom headers for k8s request(such as userpin,cluster-id etc...), , but Config object is only allow to specify "masterUrl" , how i can add clustom header?

Only by add interceptor ？ for example:

        Config config = new ConfigBuilder().withMasterUrl(host).build();
        KubernetesClient client = new DefaultKubernetesClient(config);
        ((DefaultKubernetesClient) client).getHttpClient().networkInterceptors().add(chain -> {
            Request agent = chain.request().newBuilder().addHeader("user-pin","xxx")
                    .addHeader("cluster-id","xxxx").build();
            return chain.proceed(agent);
        });

Is it possible to set the customer header for requests sent to ones Kubernetes cluster in this API?

such as:

Config config = new ConfigBuilder().withMasterUrl(northHost).withHeaders("name", "value").build();

@jimmidyson @iocanel @rohanKanojia

Thanks !

[rohanKanojia]

I'm not sure we provide this functionality at the moment. Could you please elaborate what use case are you trying to solve by providing custom headers?

[iocanel]

I don't think that we do. Still it would be trivial to implement.

Would you like to create a pull request for that?

[wangyushuai]

I'm not sure we provide this functionality at the moment. Could you please elaborate what use case are you trying to solve by providing custom headers?

In this case:

I provide a proxy that is allow user to schedule his cluster, but i want to authenticate the current user that is owner of this K8S cluster.

I ask the user to put the cluster name and user name in the header, then, proxy completes authentication and forwarding.

Thanks! @rohanKanojia

[wangyushuai]

I don't think that we do. Still it would be trivial to implement.

Would you like to create a pull request for that?

Yes , I would like to try it. @iocanel

[rohanKanojia]

@wangyushuai : awesome, looking forward to your contribution :smiley:

[wangyushuai]

Hi @rohanKanojia,

I want to know now if there is a way to add a custom headers , except for modifying the source code myself.

I found that the interceptor is not allowed to be modified after the client is initialized；

Thanks!