Feature
Other changes in 1.37
- Starting with GKE version 1.37.0-gke.2100000, newly created clusters default to using control plane node creation, which improves cluster security by having the control plane manage node registration instead of kubelet self-registration. Existing clusters are not affected. If your workloads require legacy kubelet self-registration, you can opt out during cluster creation by specifying --node-creation-mode=KUBELET. For more information, see Disable control plane node creation.
- In version 1.37 and later, newly created node pools use an improved formula to calculate the default system reservation for CPU and memory resources on each node. This updated reservation algorithm reduces the system memory reservation by 10% to 15% when compared to the algorithm that's used in version 1.36 and earlier.
- The updated default reservation algorithm applies only to new node pools that are created on version 1.37 and later. Existing node pools that you upgrade to 1.37 or later from version 1.36 or earlier don't use the updated algorithm.
- Additionally, any new or existing node pool that runs GKE version 1.37 and later can modify the amount of CPU and memory that's reserved for system workloads in node pools by using the reservedResourcesConfig option in the node system configuration file.
Read the original announcement