Estimate total cluster-wide resource consumption of a DaemonSet across all nodes.
A DaemonSet always schedules exactly one pod per eligible node, so its total resource footprint scales linearly with cluster size rather than with traffic or workload demand. This makes DaemonSets (CNI plugins, log shippers, node monitoring agents) a fixed tax on every node's capacity — one that grows automatically whenever the cluster autoscaler adds nodes, and should be netted out before sizing pod density for regular workloads.
Total DaemonSet CPU
totalCPU = nodeCount × perPodCPU
Total DaemonSet memory
totalMemory = nodeCount × perPodMemory
By design a DaemonSet controller ensures exactly one copy of the pod runs on every node matching its selector — adding more nodes automatically adds more DaemonSet pods, regardless of application-level traffic or replica counts.
Commonly 3-6: a CNI agent, kube-proxy, a log shipper (Fluent Bit/Fluentd), a node-level metrics exporter (node-exporter), and sometimes a security or service mesh agent.
Subtract the per-node DaemonSet CPU/memory footprint from allocatable node capacity before running the pod density calculator for your application pods, since that capacity is unavailable regardless of scheduling.