Merge dev to dev-to-kube-1.26

Author: zalando-teapot-robot

cluster/config-defaults.yaml

@@ -484,7 +484,7 @@ teapot_admission_controller_default_cpu_request: "25m"
 teapot_admission_controller_default_memory_request: "100Mi"
 teapot_admission_controller_process_resources: "true"
 teapot_admission_controller_process_resource_ephemeral_storage: "false"
-teapot_admission_controller_default_ephemeral_storage_request: "512Mi"
+teapot_admission_controller_default_ephemeral_storage_request: "25Mi"
 teapot_admission_controller_max_ephemeral_storage_request: "5Gi"
 teapot_admission_controller_application_min_creation_time: "2019-06-03T12:00:00Z"
 teapot_admission_controller_ndots: "2"