![]() ![]() This isn't a very flexible approach, so for example if you wanted to assign pods to any control plane node, you could apply a label to those nodes and use a node selector combined with the toleration to get the workloads assigned there. The simplest approach to this is to specify the target node name in the manifest. If you need to have a pod scheduled to a control plane node, without using a daemonset, it's possible to combine a toleration with scheduling information to get it assigned to a specific node. If you're looking to get a pod scheduled to every node, usually the approach is to create a daemonset with that toleration applied. Something like the following should work tolerations: These packets are destined to router addresses and are called control plane packets. ![]() These protocols, such as the Border Gateway Protocol (BGP) and the Open Shortest Path First (OSPF) Protocol, send control packets between devices. During upgrade kubeadm writes the following backup folders under /etc/kubernetes/tmp: kubeadm-backup-etcd contains a backup of the local etcd member data for this control plane Node. Untainting the control plane node can be dangerous as if you run out of resources on that node, your cluster's operation is likely to suffer. Control plane Handles all routing protocol control traffic. To recover from a bad state, you can also run kubeadm upgrade apply -force without changing the version that your cluster is running. To get pods scheduled on Control plane nodes which have a taint applied (which most Kubernetes distributions will do), you need to add a toleration to your manifests, as described in their documentation, rather than untaint the control plane node. ![]()
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