Last modified: November 27, 2018
As of November 28, 2017, Google Kubernetes Engine no longer charges a flat fee per hour per cluster for cluster management, regardless of cluster size, as provided at https://cloud.google.com/kubernetes-engine/pricing. Accordingly, Google no longer offers a financially-backed service level agreement for the Google Kubernetes Engine service. The service availability of nodes in a Google Kubernetes Engine-managed cluster is covered by the Google Compute Engine SLA at https://cloud.google.com/compute/sla.
Uptime for Google Kubernetes Engine is nevertheless highly important to Google, and Google has an internal goal to keep the monthly uptime percentage at 99.5% for the Kubernetes API server for zonal clusters and 99.95% for regional clusters regardless of the applicability of a financially-backed service level agreement.