Querying for an event based on InvolvedObject fields

[nathanieltalbot]

I'm currently trying to write queries for the kubernetes client that allow me to get all of the events for a given deployment. Based on the --v=8 output from kubectl, the URL for the raw GET request to the API should look something like this:

GET
/api/v1/namespaces/{namespace}/events?fieldSelector=involvedObject.name={name}&involvedObject.namespace={namespace}&involvedObject.kind=Deployment&involvedObject.uid={UID}

However, it doesn't seem as if I can make the same query with the DSL syntax. kubernetesClient.v1().events().inNamespace(namespace) doesn't seem to offer a withObject or withInvolvedObject or similar syntax, unless I'm mistaken. Is this possible or is there a reason why it isn't?

The involvedObject field is documented in the Kubernetes API spec here: https://v1-15.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.15/#deploymentcondition-v1-apps

[rohanKanojia]

hmm, I think we're just missing it's support in DSL

[rohanKanojia]

I don't see any problem in adding it :-)

[rohanKanojia]

@nathanieltalbot : Is this only applicable to Events? On a closer look, I think you should be able to do it by just adding a field selector:

            Map<String, String> fields = new HashMap<>();
            fields.put("involvedObject.name", "foo");
            fields.put("involvedObject.namespace", "rokumar");
            fields.put("involvedObject.kind", "Deployment");
            fields.put("involvedObject.uid", "6d71451a-f8df-11ea-a8ac-0e13a02d8ebd");
            client.v1().events().inNamespace("rokumar")
                    .withFields(fields)
                    .list();

[rohanKanojia]

But this looks cleaner if we had support for this:

            client.v1().events().inNamespace("rokumar").withInvolvedObject(new ObjectReferenceBuilder()
                    .withName("foo")
                    .withNamespace("rokumar")
                    .withKind("Deployment")
                    .withUid("6d71451a-f8df-11ea-a8ac-0e13a02d8ebd")
                    .build()).list();