2021-08-10 11:51:30 +02:00
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const PrometheusClient = require("prom-client");
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2022-04-13 17:33:37 +02:00
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const { log } = require("../src/util");
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2021-07-27 18:52:31 +02:00
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const commonLabels = [
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2021-08-10 11:51:30 +02:00
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"monitor_name",
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"monitor_type",
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"monitor_url",
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"monitor_hostname",
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"monitor_port",
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2021-10-10 10:37:53 +02:00
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];
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2021-07-27 18:52:31 +02:00
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2024-10-09 01:17:11 +02:00
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const monitorCertDaysRemaining = new PrometheusClient.Gauge({
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name: "monitor_cert_days_remaining",
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help: "The number of days remaining until the certificate expires",
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labelNames: commonLabels
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});
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const monitorCertIsValid = new PrometheusClient.Gauge({
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name: "monitor_cert_is_valid",
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help: "Is the certificate still valid? (1 = Yes, 0= No)",
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labelNames: commonLabels
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});
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const monitorResponseTime = new PrometheusClient.Gauge({
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name: "monitor_response_time",
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help: "Monitor Response Time (ms)",
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labelNames: commonLabels
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});
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const monitorStatus = new PrometheusClient.Gauge({
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name: "monitor_status",
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help: "Monitor Status (1 = UP, 0= DOWN, 2= PENDING, 3= MAINTENANCE)",
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labelNames: commonLabels
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});
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2024-08-24 18:02:57 +02:00
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2024-10-09 01:17:11 +02:00
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class Prometheus {
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monitorLabelValues = {};
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2024-08-24 18:02:57 +02:00
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/**
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2024-10-09 01:17:11 +02:00
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* @param {object} monitor Monitor object to monitor
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2024-08-24 18:02:57 +02:00
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*/
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2024-10-09 01:17:11 +02:00
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constructor(monitor) {
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2021-07-27 18:52:31 +02:00
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this.monitorLabelValues = {
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monitor_name: monitor.name,
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monitor_type: monitor.type,
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monitor_url: monitor.url,
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monitor_hostname: monitor.hostname,
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monitor_port: monitor.port
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2021-10-10 10:37:53 +02:00
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};
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2021-07-27 18:52:31 +02:00
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}
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2022-04-20 20:56:40 +02:00
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/**
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* Update the metrics page
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2023-08-11 09:46:41 +02:00
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* @param {object} heartbeat Heartbeat details
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* @param {object} tlsInfo TLS details
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* @returns {void}
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2022-04-20 20:56:40 +02:00
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*/
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2021-08-10 11:51:30 +02:00
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update(heartbeat, tlsInfo) {
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2024-10-09 01:17:11 +02:00
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2021-08-10 14:00:59 +02:00
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if (typeof tlsInfo !== "undefined") {
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2021-08-10 13:14:13 +02:00
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try {
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2022-04-17 09:43:03 +02:00
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let isValid;
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if (tlsInfo.valid === true) {
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2022-04-13 18:30:32 +02:00
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isValid = 1;
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2021-08-10 13:14:13 +02:00
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} else {
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2022-04-13 18:30:32 +02:00
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isValid = 0;
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2021-08-10 13:14:13 +02:00
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}
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2024-10-09 01:17:11 +02:00
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monitorCertIsValid.set(this.monitorLabelValues, isValid);
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2021-08-10 13:14:13 +02:00
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} catch (e) {
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2022-04-13 17:33:37 +02:00
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log.error("prometheus", "Caught error");
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log.error("prometheus", e);
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2021-08-10 13:14:13 +02:00
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}
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try {
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2022-01-14 08:51:45 +02:00
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if (tlsInfo.certInfo != null) {
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2024-10-09 01:17:11 +02:00
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monitorCertDaysRemaining.set(this.monitorLabelValues, tlsInfo.certInfo.daysRemaining);
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2022-01-12 10:12:12 +02:00
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}
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2021-08-10 13:14:13 +02:00
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} catch (e) {
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2022-04-13 17:33:37 +02:00
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log.error("prometheus", "Caught error");
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log.error("prometheus", e);
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2021-08-10 13:14:13 +02:00
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}
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}
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2021-08-10 11:51:30 +02:00
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2024-04-24 08:37:17 +02:00
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if (heartbeat) {
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try {
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2024-10-09 01:17:11 +02:00
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monitorStatus.set(this.monitorLabelValues, heartbeat.status);
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2024-04-24 08:37:17 +02:00
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} catch (e) {
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log.error("prometheus", "Caught error");
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log.error("prometheus", e);
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}
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2021-07-27 18:52:31 +02:00
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2024-04-24 08:37:17 +02:00
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try {
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if (typeof heartbeat.ping === "number") {
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2024-10-09 01:17:11 +02:00
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monitorResponseTime.set(this.monitorLabelValues, heartbeat.ping);
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2024-04-24 08:37:17 +02:00
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} else {
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// Is it good?
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2024-10-09 01:17:11 +02:00
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monitorResponseTime.set(this.monitorLabelValues, -1);
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2024-04-24 08:37:17 +02:00
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}
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} catch (e) {
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log.error("prometheus", "Caught error");
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log.error("prometheus", e);
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2021-07-27 18:52:31 +02:00
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}
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}
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}
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2023-08-11 09:46:41 +02:00
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/**
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* Remove monitor from prometheus
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* @returns {void}
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*/
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2022-01-07 05:57:24 +02:00
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remove() {
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try {
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2024-10-09 01:17:11 +02:00
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monitorCertDaysRemaining.remove(this.monitorLabelValues);
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monitorCertIsValid.remove(this.monitorLabelValues);
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monitorResponseTime.remove(this.monitorLabelValues);
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monitorStatus.remove(this.monitorLabelValues);
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2022-01-07 05:57:24 +02:00
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} catch (e) {
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console.error(e);
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}
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}
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2021-07-27 18:52:31 +02:00
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}
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module.exports = {
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Prometheus
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2021-10-10 10:37:53 +02:00
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};
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