Get CPU and memory metrics for nodes, pods, and containers in your Kubernetes cluster.
The metrics server must be installed in your cluster for these commands to work. Most managed Kubernetes services (EKS, GKE) have it pre-installed.
Subcommands
nodes
Get CPU and memory metrics for all cluster nodes.
clanker k8s stats nodes [flags]
Output format: table, json, or yaml
# Get node metrics
clanker k8s stats nodes
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
ip-10-0-1-100.ec2.internal 245m 12% 1456Mi 38%
ip-10-0-1-101.ec2.internal 189m 9% 1123Mi 29%
# Sort by CPU usage
clanker k8s stats nodes --sort-by cpu
# Get output as JSON
clanker k8s stats nodes -o json
[
{
"name": "ip-10-0-1-100.ec2.internal",
"cpu": "245m",
"cpuPercent": 12.3,
"memory": "1456Mi",
"memPercent": 38.2
},
{
"name": "ip-10-0-1-101.ec2.internal",
"cpu": "189m",
"cpuPercent": 9.5,
"memory": "1123Mi",
"memPercent": 29.4
}
]
pods
Get CPU and memory metrics for pods.
clanker k8s stats pods [flags]
Show pods from all namespaces
Output format: table, json, or yaml
# Get pod metrics in default namespace
clanker k8s stats pods
NAME CPU(cores) MEMORY(bytes)
nginx-abc123-xyz 5m 25Mi
redis-def456-uvw 12m 128Mi
# Get pod metrics from all namespaces
clanker k8s stats pods -A
NAMESPACE NAME CPU(cores) MEMORY(bytes)
default nginx-abc123-xyz 5m 25Mi
default redis-def456-uvw 12m 128Mi
kube-system coredns-abc-123 3m 15Mi
kube-system aws-node-xyz-789 15m 95Mi
# Get pod metrics from kube-system namespace
clanker k8s stats pods -n kube-system
# Sort by memory usage
clanker k8s stats pods --sort-by memory
pod
Get metrics for a specific pod and its containers.
clanker k8s stats pod [pod-name] [flags]
Name of the pod to get metrics for
Show per-container metrics
Output format: table, json, or yaml
# Get metrics for a specific pod
clanker k8s stats pod my-pod
NAME CPU(cores) MEMORY(bytes)
my-pod 45m 256Mi
# Get per-container metrics
clanker k8s stats pod my-pod --containers
POD CONTAINER CPU(cores) MEMORY(bytes)
my-pod app 35m 200Mi
my-pod sidecar 10m 56Mi
# Get metrics from a specific namespace
clanker k8s stats pod my-pod -n kube-system
cluster
Get aggregated cluster-wide metrics.
clanker k8s stats cluster [flags]
Output format: table, json, or yaml
# Get cluster-wide metrics
clanker k8s stats cluster
Cluster Metrics
===============
Nodes: 2
Avg CPU Usage: 10.9%
Avg Memory Usage: 33.8%
NODE CPU CPU% MEMORY MEM%
ip-10-0-1-100.ec2.internal 245m 12.3% 1456Mi 38.2%
ip-10-0-1-101.ec2.internal 189m 9.5% 1123Mi 29.4%
# Get cluster metrics as JSON
clanker k8s stats cluster -o json
{
"nodeCount": 2,
"totalCPU": "0m",
"totalMemory": "0Mi",
"avgCPUPercent": 10.9,
"avgMemPercent": 33.8,
"nodes": [
{
"name": "ip-10-0-1-100.ec2.internal",
"cpu": "245m",
"cpuPercent": 12.3,
"memory": "1456Mi",
"memPercent": 38.2
},
{
"name": "ip-10-0-1-101.ec2.internal",
"cpu": "189m",
"cpuPercent": 9.5,
"memory": "1123Mi",
"memPercent": 29.4
}
]
}