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109 lines
3.1 KiB
109 lines
3.1 KiB
const PrometheusClient = require("prom-client");
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const { log } = require("../src/util");
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const commonLabels = [
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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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];
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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)",
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labelNames: commonLabels
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});
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class Prometheus {
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monitorLabelValues = {}
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constructor(monitor) {
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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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};
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}
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update(heartbeat, tlsInfo) {
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if (typeof tlsInfo !== "undefined") {
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try {
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let isValid;
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if (tlsInfo.valid === true) {
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isValid = 1;
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} else {
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isValid = 0;
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}
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monitorCertIsValid.set(this.monitorLabelValues, isValid);
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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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try {
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if (tlsInfo.certInfo != null) {
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monitorCertDaysRemaining.set(this.monitorLabelValues, tlsInfo.certInfo.daysRemaining);
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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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}
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}
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try {
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monitorStatus.set(this.monitorLabelValues, heartbeat.status);
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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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try {
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if (typeof heartbeat.ping === "number") {
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monitorResponseTime.set(this.monitorLabelValues, heartbeat.ping);
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} else {
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// Is it good?
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monitorResponseTime.set(this.monitorLabelValues, -1);
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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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}
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}
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remove() {
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try {
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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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} catch (e) {
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console.error(e);
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}
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}
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}
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module.exports = {
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Prometheus
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};
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