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Improved kubernetes error handling
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parent
8887fcc3ee
commit
4fc6db49ca
8 changed files with 205 additions and 124 deletions
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@ -2,59 +2,79 @@ import { CoreV1Api, Metrics } from "@kubernetes/client-node";
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import getKubeConfig from "../../../utils/config/kubernetes";
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import { parseCpu, parseMemory } from "../../../utils/kubernetes/kubernetes-utils";
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import createLogger from "../../../utils/logger";
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const logger = createLogger("kubernetes-widget");
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export default async function handler(req, res) {
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const { type } = req.query;
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const kc = getKubeConfig();
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const coreApi = kc.makeApiClient(CoreV1Api);
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const metricsApi = new Metrics(kc);
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try {
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const kc = getKubeConfig();
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const coreApi = kc.makeApiClient(CoreV1Api);
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const metricsApi = new Metrics(kc);
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const nodes = await coreApi.listNode();
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const nodeCapacity = new Map();
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let cpuTotal = 0;
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let cpuUsage = 0;
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let memTotal = 0;
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let memUsage = 0;
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const nodes = await coreApi.listNode()
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.then((response) => response.body)
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.catch((error) => {
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logger.error("Error getting ingresses: %d %s %s", error.statusCode, error.body, error.response);
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return null;
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});
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if (!nodes) {
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return res.status(500).send({
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error: "unknown error"
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});
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}
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const nodeCapacity = new Map();
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let cpuTotal = 0;
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let cpuUsage = 0;
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let memTotal = 0;
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let memUsage = 0;
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nodes.body.items.forEach((node) => {
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nodeCapacity.set(node.metadata.name, node.status.capacity);
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cpuTotal += Number.parseInt(node.status.capacity.cpu, 10);
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memTotal += parseMemory(node.status.capacity.memory);
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});
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nodes.items.forEach((node) => {
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nodeCapacity.set(node.metadata.name, node.status.capacity);
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cpuTotal += Number.parseInt(node.status.capacity.cpu, 10);
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memTotal += parseMemory(node.status.capacity.memory);
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});
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const nodeMetrics = await metricsApi.getNodeMetrics();
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const nodeUsage = new Map();
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nodeMetrics.items.forEach((metrics) => {
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nodeUsage.set(metrics.metadata.name, metrics.usage);
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cpuUsage += parseCpu(metrics.usage.cpu);
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memUsage += parseMemory(metrics.usage.memory);
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});
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const nodeMetrics = await metricsApi.getNodeMetrics();
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const nodeUsage = new Map();
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nodeMetrics.items.forEach((metrics) => {
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nodeUsage.set(metrics.metadata.name, metrics.usage);
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cpuUsage += parseCpu(metrics.usage.cpu);
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memUsage += parseMemory(metrics.usage.memory);
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});
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if (type === "cpu") {
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return res.status(200).json({
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cpu: {
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usage: (cpuUsage / cpuTotal) * 100,
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load: cpuUsage
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}
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if (type === "cpu") {
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return res.status(200).json({
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cpu: {
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usage: (cpuUsage / cpuTotal) * 100,
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load: cpuUsage
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}
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});
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}
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if (type === "memory") {
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const SCALE_MB = 1024 * 1024;
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const usedMemMb = memUsage / SCALE_MB;
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const totalMemMb = memTotal / SCALE_MB;
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const freeMemMb = totalMemMb - usedMemMb;
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return res.status(200).json({
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memory: {
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usedMemMb,
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freeMemMb,
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totalMemMb
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}
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});
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}
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return res.status(400).json({
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error: "invalid type"
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});
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} catch (e) {
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logger.error("exception %s", e);
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return res.status(500).send({
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error: "unknown error"
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});
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}
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if (type === "memory") {
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const SCALE_MB = 1024 * 1024;
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const usedMemMb = memUsage / SCALE_MB;
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const totalMemMb = memTotal / SCALE_MB;
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const freeMemMb = totalMemMb - usedMemMb;
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return res.status(200).json({
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memory: {
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usedMemMb,
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freeMemMb,
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totalMemMb
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}
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});
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}
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return res.status(400).json({
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error: "invalid type"
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});
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}
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