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Add tags as labels to prometheus metrics #898

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Add tags as labels to prometheus metrics #898

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fa1dfe1
Add tags as labels to prometheus metrics
proffalken Nov 9, 2021
144b8f1
Fix eslint errors for var definitions
proffalken Nov 16, 2021
d62cb61
Merge branch 'louislam:master' into feature/680_add_labels_to_prometh…
proffalken Feb 21, 2022
d1f0e9b
Add async call to get tags for prometheus exporter
proffalken Feb 21, 2022
0990001
Add new default labels that can be set as tags to turn up in Prometheus
proffalken Feb 21, 2022
d971279
Fix formatting
proffalken Feb 21, 2022
9363308
Merge branch 'master' into feature/680_add_labels_to_prometheus_metrics
proffalken Aug 2, 2022
41677d8
Fix eslint warnings
proffalken Aug 3, 2022
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21 changes: 21 additions & 0 deletions server/prometheus.js
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
const { R } = require("redbean-node");
const PrometheusClient = require("prom-client");

const commonLabels = [
Expand Down Expand Up @@ -34,6 +35,17 @@ const monitor_status = new PrometheusClient.Gauge({
class Prometheus {
monitorLabelValues = {}

async get_tags(monitor) {
console.log("Getting Tags for Prometheus");

const tags = await R.getAll("SELECT mt.*, tag.name, tag.color FROM monitor_tag mt JOIN tag ON mt.tag_id = tag.id WHERE mt.monitor_id = ?", [monitor.id]);

console.log("Found the following tags for " + monitor.id +" :");
console.log(tags);
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return tags;
}

constructor(monitor) {
this.monitorLabelValues = {
monitor_name: monitor.name,
Expand All @@ -42,6 +54,15 @@ class Prometheus {
monitor_hostname: monitor.hostname,
monitor_port: monitor.port
};

let tags = this.get_tags(monitor);
for (let tag in tags) {
let tag_detail = tags[tag];
let name = tag_detail.name;
let value = tag_detail.value;
console.log("New tag created: {" + name + ": " + value + "}");
this.monitorLabelValues[name] = value;
}
}

update(heartbeat, tlsInfo) {
Expand Down