Java: Missing class CustomResource

[YvesEarnix]

Hello!

CustomResource class are missing on the Java version as a consequence to not able to create Kubernetes custom ressource like ServiceMonitor.

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Issue details

Documentation of the missing class: https://www.pulumi.com/registry/packages/kubernetes/api-docs/apiextensions/customresource/ Location where missing class expect to be find: https://github.com/pulumi/pulumi-kubernetes/tree/master/sdk/java/src/main/java/com/pulumi/kubernetes/apiextensions

Affected area/feature

Java pulumi-kubernetes

[kylepl]

As someone trying to configure my cluster with Java Pulumi, this seems like a fairly important feature.

Is there a workaround from the Pulumi side? Of course you can execute imperative kubectl apply to the k8s cluster directly.

Also, any estimate of effort or steps that need to be done? e.g. is it an intended omission since it requires some other significant feature?

[EronWright]

A good workaround for this is to use the com.pulumi.kubernetes.yaml.v2.ConfigGroup resource (new in v4.10), specifically the objs property since it accepts object literals. The effect is similar to creating a CustomResource.

See this blog post for more information: https://www.pulumi.com/blog/kubernetes-yaml-v2/#object-literals

Here's an example of how to create a custom resource (in this case, an Issuer) using the Pulumi Java SDK:

package myproject;

import java.util.Map;

import com.pulumi.Pulumi;
import com.pulumi.kubernetes.core.v1.Namespace;
import com.pulumi.kubernetes.core.v1.NamespaceArgs;
import com.pulumi.kubernetes.yaml.v2.ConfigGroup;
import com.pulumi.kubernetes.yaml.v2.ConfigGroupArgs;

public class App {
    public static void main(String[] args) {
        Pulumi.run(ctx -> {
            var ns = new Namespace("ns", NamespaceArgs.builder().build());
            var issuer = new ConfigGroup("example", ConfigGroupArgs.builder()
                    .objs(Map.ofEntries(
                        Map.entry("apiVersion", "cert-manager.io/v1"),
                        Map.entry("kind", "Issuer"),
                        Map.entry("metadata", Map.ofEntries(
                            Map.entry("name", "my-issuer"),
                            Map.entry("namespace", ns.metadata().applyValue(m -> m.name()))
                        )),
                        Map.entry("spec", Map.ofEntries(
                            Map.entry("selfSigned", Map.ofEntries())
                        ))
                    ))
                    .build());
        });
    }
}

[blampe]

Fixed as part of https://github.com/pulumi/pulumi-kubernetes/issues/2787. See the Java examples here.

[kylepl]

I appreciate the updates! Just in-case it's useful to anyone else, and using a bit of Kotlin mixed-in, here is working excerpt for using it with cert-manager:

CustomResource(
    "certficate",
    CustomResourceArgs.Builder()
        .apiVersion("cert-manager.io/v1")
        .kind("Certificate")
        .otherFields(
            mapOf(
                "spec" to
                    mapOf(
                        "issuerRef" to
                            mapOf(
                                "name" to clusterIssuerName, "kind" to "ClusterIssuer"),
                        "secretName" to "the-tls-secret",
                        "dnsNames" to listOf("mydomain.ca"))))
        .build())