import { exec } from 'child_process';
import { promisify } from 'util';
const execAsync = promisify(exec);
export async function getResourceMetrics(namespace: string, podName?: string) {
try {
let cmd = `kubectl top pods -n ${namespace}`;
if (podName) {
cmd += ` ${podName}`;
}
const { stdout } = await execAsync(cmd);
// Parse the kubectl top output
const lines = stdout.trim().split('\n');
const headers = lines[0];
const dataLines = lines.slice(1);
const metrics = dataLines.map(line => {
const parts = line.trim().split(/\s+/);
return {
name: parts[0],
cpu: parts[1],
memory: parts[2]
};
});
return {
success: true,
namespace,
metrics
};
} catch (error: any) {
// metrics-server might not be installed
if (error.message.includes('Metrics API not available')) {
return {
success: false,
error: 'Metrics server not installed in cluster. Install with: kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml'
};
}
return {
success: false,
error: error.message
};
}
}
