Cloud Logging can be used with the following query. The kubelet logs are available from what I can see and this answer should be updated.

resource.type="k8s_node"
resource.labels.project_id="project-name"
resource.labels.location="gcp-cluster-region"
resource.labels.cluster_name="cluster-name"
resource.labels.node_name="gke-node-name"
logName="projects/project-name/logs/kubelet"

• https://cloud.google.com/kubernetes-engine/docs/concepts/about-logs#available-logs
• https://cloud.google.com/kubernetes-engine/docs/how-to/view-logs