// we opt for a delay of zero here, because this entrypoint adds generic health checks
	// and not health checks which are specifically related to kube-apiserver boot-sequences.
	return s.addHealthChecks(0, checks...)
}

// AddBootSequenceHealthChecks adds health checks to the old healthz endpoint (for backwards compatibility reasons)

			}
		}
		if excluded.Len() > 0 {
			fmt.Fprintf(&individualCheckOutput, "warn: some health checks cannot be excluded: no matches for %s\n", formatQuoted(excluded.List()...))
			klog.V(6).Infof("cannot exclude some health checks, no health checks are installed matching %s",
				formatQuoted(excluded.List()...))
		}
		// always be verbose on failure
		if len(failedChecks) > 0 {

 4. Work out what plugins to use for each project.
+
We expect that the vast majority of Ant builds are for <<building_java_projects#building_java_projects,JVM-based projects>>, for which there are a wealth of plugins that provide a lot of the functionality you need.

func CheckClusterHealth(client clientset.Interface, cfg *kubeadmapi.ClusterConfiguration, ignoreChecksErrors sets.Set[string], printer output.Printer) error {
	_, _ = printer.Println("[upgrade] Running cluster health checks")

	healthChecks := []preflight.Checker{
		&healthCheck{
			name:   "CreateJob",
			client: client,
			cfg:    cfg,
			f:      createJob,
		},
		&healthCheck{
			name:   "ControlPlaneNodesReady",

          value: cluster.local
        - name: TRUST_DOMAIN
          value: cluster.local
        - name: ISTIO_KUBE_APP_PROBERS
          value: '{"/app-health/hello/livez":{"httpGet":{"port":80}},"/app-health/hello/readyz":{"httpGet":{"port":3333}},"/app-health/world/livez":{"httpGet":{"port":90}}}'
        image: gcr.io/istio-testing/proxyv2:latest
        lifecycle:
          postStart:
            exec:

        - name: TRUST_DOMAIN
          value: cluster.local
        - name: ISTIO_KUBE_APP_PROBERS
          value: '{"/app-health/hello/livez":{"httpGet":{"port":80}},"/app-health/hello/readyz":{"httpGet":{"port":3333}},"/app-health/hello/startupz":{"httpGet":{"port":3333}},"/app-health/world/livez":{"httpGet":{"port":90}},"/app-health/world/startupz":{"httpGet":{"port":90}}}'
        image: gcr.io/istio-testing/proxyv2:latest
        name: istio-proxy

          value: cluster.local
        - name: TRUST_DOMAIN
          value: cluster.local
        - name: ISTIO_KUBE_APP_PROBERS
          value: '{"/app-health/hello/livez":{"httpGet":{"port":80}},"/app-health/hello/readyz":{"httpGet":{"port":3333}},"/app-health/world/livez":{"httpGet":{"port":90}}}'
        image: gcr.io/istio-testing/proxyv2:latest
        name: istio-proxy
        ports:
        - containerPort: 15090

          value: cluster.local
        - name: TRUST_DOMAIN
          value: cluster.local
        - name: ISTIO_KUBE_APP_PROBERS
          value: '{"/app-health/hello/livez":{"httpGet":{"port":80}},"/app-health/hello/readyz":{"httpGet":{"port":3333}},"/app-health/world/livez":{"httpGet":{"port":90}}}'
        image: gcr.io/istio-testing/proxyv2:latest
        name: istio-proxy
        ports:
        - containerPort: 15090

          value: cluster.local
        - name: TRUST_DOMAIN
          value: cluster.local
        - name: ISTIO_KUBE_APP_PROBERS
          value: '{"/app-health/hello/livez":{"httpGet":{"port":80}},"/app-health/hello/readyz":{"httpGet":{"port":3333}},"/app-health/world/livez":{"httpGet":{"port":90}}}'
        image: gcr.io/istio-testing/proxyv2:latest
        lifecycle:
          postStart:
            exec:

          value: cluster.local
        - name: TRUST_DOMAIN
          value: cluster.local
        - name: ISTIO_KUBE_APP_PROBERS
          value: '{"/app-health/hello/livez":{"httpGet":{"port":80}},"/app-health/hello/readyz":{"httpGet":{"port":3333}},"/app-health/world/livez":{"httpGet":{"port":90}}}'
        image: gcr.io/istio-testing/proxyv2:latest
        name: istio-proxy
        ports:
        - containerPort: 15090