https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/Recent content in Control Plane onHugo -- gohugo.ioTue, 06 Oct 2020 08:48:23 +0000https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/controlplane-group/Tue, 06 Oct 2020 08:49:31 +0000https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/controlplane-group/A Control Plane is a group of cluster control nodes. They host the ETCD database and some critical services. For test clusters, as a rule, 1 node in a group is enough, for fault-tolerant clusters - 3. We do not recommend creating more than 3 nodes, because this can cause the cluster to slow down due to the complex ETCD quorum mechanism on the nodes. Only one Control Plane group can be created in a cluster.https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/capi/Tue, 06 Oct 2020 08:49:31 +0000https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/capi/On the ClusterAPI Configuration tab, you can specify KubeadmControlPlane parameters. Screenshot More detailed settings can be configured in the control cluster in the Administration/Custom Resources section using the KubeadmControlPlane custom resource of the controlplane.cluster.x-k8s.io API group. Screenshot Setting up ClusterAPI # The group name is formed according to the principle of the cluster name plus the postfix “-control-plane”. requested quantity number of nodes. For the Control Plane group of nodes, only specifying an odd number of nodes is available, because etcd is hosted on Control Plane nodes and requires an odd number of nodes to obtain quorum in etcd.https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/inframachinetemplate/Tue, 06 Oct 2020 08:49:31 +0000https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/inframachinetemplate/On the InfraMachineTemplate tab, you have the option to change the infrastructure template settings by manually applying new values or copying values from another existing template. This will create a new infrastructure template. Depending on the type of provider, the resource is created: -OVirtMachineTemplate; VSphereMachineTemplate; OpenStackMachineTemplate; BasisMachineTemplate; ShturvalMachineTemplate; YandexMachineTemplate; VCDMachineTemplate. More detailed settings for infrastructure templates can be configured in the management cluster in the Administration/Custom Resources section using a custom resource of the corresponding provider in the infrastructure.https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/machinehealthcheck/Tue, 06 Oct 2020 08:49:31 +0000https://docs.shturval.tech/2.13/en/cluster-admin/c-administration/nodes/controlplane/machinehealthcheck/For a group of Control Plane nodes on the MachineHealthCheck tab you can: configure different MachineHealthCheck configurations to check the health of machines. When installing a client cluster, the default MachineHealthCheck is mounted for groups of Control Plane nodes. To configure additional MachineHealthChecks, click +Add. When multiple configurations have been created, the tab displays a list of MachineHealthChecks. go to viewing and editing the MachineHealthCheck configuration. Screenshot More detailed parameters for MachineHealthChecks can be configured in the management cluster in the Administration/Custom Resources section using the custom MachineHealthCheck resource in the cluster.