Stackdriver: Monitor other resources type for k8s horizontal auto-scaling

Hi,

I have a spring boot application running in kubernetes with custom metrics published to stack driver for its horizontal auto scaling.

I’m interested in using the actuator+micrometrics to gather & handles them.

Do you plan to make the resource more configurable?

For my case here what is needed:

        final Map<String, String> resourceLabels = new HashMap<>();

        // https://cloud.google.com/kubernetes-engine/docs/tutorials/custom-metrics-autoscaling#exporting_metrics_from_the_application

        resourceLabels.put("pod_id", config.podId);

        // must be set to empty string
        resourceLabels.put("container_name", "");

        // can be set to any value (unused)
        resourceLabels.put("namespace_id", "");
        resourceLabels.put("instance_id", "");

        resourceLabels.put("project_id", config.projectId);
        resourceLabels.put("cluster_name", config.clusterName);
        resourceLabels.put("zone", config.zone);

        return MonitoredResource.newBuilder()
            .setType("gke_container")
            .putAllLabels(resourceLabels)
            .build();

Maybe the StackdriverConfig could allows to configure the type and additional labels for the resource.

public interface StackdriverConfig extends StepRegistryConfig {
    @Override
    default String prefix() {
        return "stackdriver";
    }

   default String resourceType() {
     //
   }

   default Map<String, String> resourceLabels() {
      // 
   }

    default String projectId() {
        String v = get(prefix() + ".projectId");
        if (v == null)
            throw new MissingRequiredConfigurationException("projectId must be set to report metrics to Stackdriver");
        return v;
    }
}

I’d be happy to provide a PR if you think it would be accepted.

[deanorderly]

lol, now I need to find a plugin that overrides very specific css as I just edited google’s css in dev tools to get this so I can read crap…

[shakuzen]

Closing this as it is possible to configure the resource labels since #1818 added that configuration. It would be good if we added such generic labels for users when available. Then we could map them to resource labels for Stackdriver as appropriate with less config required from users, and it would be consistently available across meter registries. However, getting the metadata seems challenging in a lot of cases since it isn’t available in environment variables for containers out-of-the-box in generic kubernetes clusters. If there are ideas how we can do this in a generic way, please do open an issue and let’s explore that.