InfluxDB 2.x, Annotations. Send tags for filtering (#4197)

* InfluxDB 2.x, Annotations. Fix: send tags not as fields.

* InfluxDB 2.x, Annotations. Code clean-up

* InfluxDB 2.x, Annotations. Send for Grafana

* InfluxDB 2.x, Annotations. Code clean-up

* InfluxDB 2.x, Annotations. Fix lint

---------

Co-authored-by: Peter Hedenskog <peter@soulgalore.com>

lib/plugins/influxdb/send-annotationV2.js

@@ -36,7 +36,12 @@ export function sendV2(
     options.influxdb.includeQueryParams,
     alias
   ).split('.');
-  let tags = [connectivity, browser, urlAndGroup[0], urlAndGroup[1]];
+  let tags = [
+    `connectivity=${connectivity}`,
+    `browser=${browser}`,
+    `group=${urlAndGroup[0]}`,
+    `page=${urlAndGroup[1]}`
+  ];
 
   if (options.slug) {
     tags.push(options.slug);
@@ -55,13 +60,13 @@ export function sendV2(
     : Math.round(dayjs() / 1000);
   // if we have a category, let us send that category too
   if (options.influxdb.tags) {
-    for (let row of options.influxdb.tags.split(',')) {
-      const keyAndValue = row.split('=');
-      tags.push(keyAndValue[1]);
+    for (const tag of options.influxdb.tags.split(',')) {
+      tags.push(tag);
     }
   }
-  const influxDBTags = getTagsAsString(tags);
-  const postData = `events title="Sitespeed.io",text="${message}",tags=${influxDBTags} ${timestamp}`;
+  const influxDBTags = tags.join(',');
+  const grafanaTags = getTagsAsString(tags.map(pair => pair.split('=')[1]));
+  const postData = `annotations,${influxDBTags} title="Sitespeed.io",text="${message}",tags=${grafanaTags} ${timestamp}`;
   const postOptions = {
     hostname: options.influxdb.host,
     port: options.influxdb.port,