Kubernetes is installed using
kubeadm, the cluster management tool built by the core Kubernetes team and owned by
kubeadm brings up the Kubernetes control plane before other add-ons are applied.
In addition to supporting Kubernetes using
kubeadm, kURL can install RKE2 and K3s.
Support for both of these distributions is in beta. For more information about limitations and instructions, see the respective add-on pages.
|version||The version of kubernetes to be installed.|
|serviceCIDR||Customize the range of virtual IPs assigned to services.|
|serviceCidrRange||The size of the CIDR for Kubernetes (can be presented as just a number or with a preceding slash).|
|bootstrapToken||Authentication token used by kubernetes when adding nodes. The default is an auto-generated token.|
|bootstrapTokenTTL||TTL of the bootstrap-token. The default is 24 hours.|
|certKey||A secret needed for new primary nodes to join an existing cluster (read-only).|
|controlPlane||Used during a join script to indicate that the node will be an additional primary (read-only).|
|containerLogMaxSize||A quantity defining the maximum size of the container log file before it is rotated. For example: "5Mi" or "256Ki". This does not work with Docker. For Docker, check out https://docs.docker.com/config/containers/logging/json-file.|
|containerLogMaxFiles||Specifies the maximum number of container log files that can be present for a container. This does not work with Docker. For Docker, check out https://docs.docker.com/config/containers/logging/json-file.|
|kubeadmToken||Generated during the install script, used for nodes joining (read-only).|
|kubeadmTokenCAHash||Generated during the install script, used for nodes joining (read-only).|
|loadBalancerAddress||Used for High Availability installs, indicates the address of the external load balancer.|
|masterAddress||The address of the internal Kubernetes API server, used during join scripts (read-only).|
|HACluster||Create the cluster as a high availability cluster (note that this needs a valid load balancer address and additional nodes to be a truly HA cluster.|
|cisCompliance||Indicates if this install should meet all CIS compliance requirements. See CIS compliance.|
|kubeReserved||Reserved CPU, memory and disk for kubernetes.|
|evictionThresholdResources||Provided as evictionHard to kubelet configuration as described in the kubelet configuration section of the Kubernetes documentation.|
|systemReservedResources||Provided as systemReserved to kubelet configuration as described in the kubelet configuration section of the Kubernetes documentation.|
|clusterName||The name of the Kubernetes cluster (default "kubernetes").|
CPU, memory, and disk resources are reserved for Kubernetes system daemons when the
kubeReserved flag is set to
Allocatable resources are calculated using the following equation:
ALLOCATABLE = CAPACITY - RESERVED - EVICTION-THRESHOLD
For memory resources, kURL reserves the following:
For CPU resources, kURL reserves the following:
For ephemeral storage, kURL reserves 1Gi.
kURL uses the CPU and memory ranges from GKE cluster architecture.