clusterCreate: add extra logs for host record injection

pkg/cluster/cluster.go

@@ -365,19 +365,31 @@ func ClusterCreate(ctx context.Context, runtime k3drt.Runtime, cluster *k3d.Clus
 			log.Warnln("Failed to get HostIP: %+v", err)
 		}
 		if hostIP != nil {
+			hostRecordSuccessMessage := ""
+			etcHostsFailureCount := 0
 			hostsEntry := fmt.Sprintf("%s %s", hostIP, k3d.DefaultK3dInternalHostRecord)
 			log.Debugf("Adding extra host entry '%s'...", hostsEntry)
 			for _, node := range cluster.Nodes {
 				if err := runtime.ExecInNode(clusterPrepCtx, node, []string{"sh", "-c", fmt.Sprintf("echo '%s' >> /etc/hosts", hostsEntry)}); err != nil {
 					log.Warnf("Failed to add extra entry '%s' to /etc/hosts in node '%s'", hostsEntry, node.Name)
+					etcHostsFailureCount++
 				}
 			}
+			if etcHostsFailureCount < len(cluster.Nodes) {
+				hostRecordSuccessMessage += fmt.Sprintf("Successfully added host record to /etc/hosts in %d/%d nodes", (len(cluster.Nodes) - etcHostsFailureCount), len(cluster.Nodes))
+			}
 
 			patchCmd := `test=$(kubectl get cm coredns -n kube-system --template='{{.data.NodeHosts}}' | sed -n -E -e '/[0-9\.]{4,12}\s+host\.k3d\.internal$/!p' -e '$a` + hostsEntry + `' | tr '\n' '^' | xargs -0 printf '{"data": {"NodeHosts":"%s"}}'| sed -E 's%\^%\\n%g') && kubectl patch cm coredns -n kube-system -p="$test"`
-			err = runtime.ExecInNode(clusterPrepCtx, cluster.Nodes[0], []string{"sh", "-c", patchCmd})
-			if err != nil {
+			if err = runtime.ExecInNode(clusterPrepCtx, cluster.Nodes[0], []string{"sh", "-c", patchCmd}); err != nil {
 				log.Warnf("Failed to patch CoreDNS ConfigMap to include entry '%s': %+v", hostsEntry, err)
+			} else {
+				hostRecordSuccessMessage += " and to the CoreDNS ConfigMap"
 			}
+
+			if hostRecordSuccessMessage != "" {
+				log.Infoln(hostRecordSuccessMessage)
+			}
+
 		}
 	}