Merge remote-tracking branch 'MakeMonmouth/feature/add_prometheus_metrics'

# Conflicts: # README.md # package-lock.json # package.json # server/model/monitor.js
2025-05-31 02:42:34 +02:00 · 2021-07-24 19:32:11 +02:00 · 2021-07-24 19:32:11 +02:00 · 5494bce9fe
commit 5494bce9fe
parent 7eeeffd2cf 47d830db1f
5 changed files with 224 additions and 46 deletions
--- a/README.md
+++ b/README.md
@ -67,6 +67,20 @@ pm2 start npm --name uptime-kuma -- run start-server -- --port=80 --hostname=0.0

 Browse to http://localhost:50013 after started.

+## Passing metrics to other platforms
+
+If you already use [Prometheus.io](https://prometheus.io) or a platform that supports Prometheus exporter format, you can get the metrics about each monitoring target from `http://<your.installation>:<your_port>/metrics`.
+
+Labels to filter by include:
+
+| Label Name | Description |
+---------|----------
+|monitor_name| The "Friendly Name" of the monitor |
+|monitor_type| The type (HTTP, keyword, TCP) of monitoring check |
+|monitor_url | The URL to be monitored (HTTP, keyword)
+|monitor_hostname | The Hostname to be monitored (TCP) |
+|monitor_port | The port to be monitored (TCP) |
+
 ## One-click Deploy to DigitalOcean

 [![Deploy to DO](https://www.deploytodo.com/do-btn-blue.svg)](https://cloud.digitalocean.com/apps/new?repo=https://github.com/louislam/uptime-kuma/tree/master&refcode=e2c7eb658434)
--- a/package.json
+++ b/package.json
@ -23,6 +23,8 @@
        "jsonwebtoken": "8.5.1",
        "nodemailer": "6.6.3",
        "password-hash": "1.2.2",
+        "prom-client": "13.1.0",
+        "prometheus-api-metrics": "3.2.0",
        "redbean-node": "0.0.20",
        "socket.io": "4.1.3",
        "socket.io-client": "4.1.3",
@ -64,4 +66,4 @@
    "volta": {
        "node": "16.4.2"
    }
-}
+}
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@ -1,22 +1,41 @@
-
+const Prometheus = require('prom-client');
 const dayjs = require("dayjs");
 const utc = require('dayjs/plugin/utc')
 var timezone = require('dayjs/plugin/timezone')
 dayjs.extend(utc)
 dayjs.extend(timezone)
 const axios = require("axios");
-const {UP, DOWN, PENDING} = require("../util");
 const {tcping, ping} = require("../util-server");
 const {R} = require("redbean-node");
 const {BeanModel} = require("redbean-node/dist/bean-model");
 const {Notification} = require("../notification")

+const commonLabels = [
+    'monitor_name',
+    'monitor_type',
+    'monitor_url',
+    'monitor_hostname',
+    'monitor_port',
+]
+
+
+const monitor_response_time = new Prometheus.Gauge({
+    name: 'monitor_response_time',
+    help: 'Monitor Response Time (ms)',
+    labelNames: commonLabels
+});
+const monitor_status = new Prometheus.Gauge({
+    name: 'monitor_status',
+    help: 'Monitor Status (1 = UP, 0= DOWN)',
+    labelNames: commonLabels
+});
 /**
 * status:
 *      0 = DOWN
 *      1 = UP
 */
 class Monitor extends BeanModel {
+
    async toJSON() {

        let notificationIDList = {};
@ -35,7 +54,6 @@ class Monitor extends BeanModel {
            url: this.url,
            hostname: this.hostname,
            port: this.port,
-            maxretries: this.maxretries,
            weight: this.weight,
            active: this.active,
            type: this.type,
@ -47,25 +65,30 @@ class Monitor extends BeanModel {

    start(io) {
        let previousBeat = null;
-        let retries = 0;
+
+        const monitorLabelValues = {
+                monitor_name: this.name,
+                monitor_type: this.type,
+                monitor_url: this.url,
+                monitor_hostname: this.hostname,
+                monitor_port: this.port
+        }
+

        const beat = async () => {
-
            if (! previousBeat) {
                previousBeat = await R.findOne("heartbeat", " monitor_id = ? ORDER BY time DESC", [
                    this.id
                ])
            }

-            const isFirstBeat = !previousBeat;
-
            let bean = R.dispense("heartbeat")
            bean.monitor_id = this.id;
            bean.time = R.isoDateTime(dayjs.utc());
-            bean.status = DOWN;
+            bean.status = 0;

            // Duration
-            if (! isFirstBeat) {
+            if (previousBeat) {
                bean.duration = dayjs(bean.time).diff(dayjs(previousBeat.time), 'second');
            } else {
                bean.duration = 0;
@ -81,7 +104,7 @@ class Monitor extends BeanModel {
                    bean.ping = dayjs().valueOf() - startTime;

                    if (this.type === "http") {
-                        bean.status = UP;
+                        bean.status = 1;
                    } else {

                        let data = res.data;
@ -93,7 +116,7 @@ class Monitor extends BeanModel {

                        if (data.includes(this.keyword)) {
                            bean.msg += ", keyword is found"
-                            bean.status = UP;
+                            bean.status = 1;
                        } else {
                            throw new Error(bean.msg + ", but keyword is not found")
                        }
@ -104,52 +127,30 @@ class Monitor extends BeanModel {
                } else if (this.type === "port") {
                    bean.ping = await tcping(this.hostname, this.port);
                    bean.msg = ""
-                    bean.status = UP;
+                    bean.status = 1;

                } else if (this.type === "ping") {
                    bean.ping = await ping(this.hostname);
                    bean.msg = ""
-                    bean.status = UP;
+                    bean.status = 1;
                }

-                retries = 0;
-
            } catch (error) {
-                if ((this.maxretries > 0) && (retries < this.maxretries)) {
-                    retries++;
-                    bean.status = PENDING;
-                }
                bean.msg = error.message;
            }

-            // * ? -> ANY STATUS = important [isFirstBeat]
-            // UP -> PENDING = not important
-            // * UP -> DOWN = important
-            // UP -> UP = not important
-            // PENDING -> PENDING = not important
-            // * PENDING -> DOWN = important
-            // PENDING -> UP = not important
-            // DOWN -> PENDING = this case not exists
-            // DOWN -> DOWN = not important
-            // * DOWN -> UP = important
-            let isImportant = isFirstBeat ||
-                (previousBeat.status === UP && bean.status === DOWN) ||
-                (previousBeat.status === DOWN && bean.status === UP) ||
-                (previousBeat.status === PENDING && bean.status === DOWN);
-
-            // Mark as important if status changed, ignore pending pings,
-            // Don't notify if disrupted changes to up
-            if (isImportant) {
+            // Mark as important if status changed
+            if (! previousBeat || previousBeat.status !== bean.status) {
                bean.important = true;

-                // Send only if the first beat is DOWN
-                if (!isFirstBeat || bean.status === DOWN) {
+                // Do not send if first beat is UP
+                if (previousBeat || bean.status !== 1) {
                    let notificationList = await R.getAll(`SELECT notification.* FROM notification, monitor_notification WHERE monitor_id = ? AND monitor_notification.notification_id = notification.id `, [
                        this.id
                    ])

                    let text;
-                    if (bean.status === UP) {
+                    if (bean.status === 1) {
                        text = "✅ Up"
                    } else {
                        text = "🔴 Down"
@ -170,14 +171,17 @@ class Monitor extends BeanModel {
                bean.important = false;
            }

-            if (bean.status === UP) {
+
+            monitor_status.set(monitorLabelValues, bean.status)
+
+            if (bean.status === 1) {
                console.info(`Monitor #${this.id} '${this.name}': Successful Response: ${bean.ping} ms | Interval: ${this.interval} seconds | Type: ${this.type}`)
-            } else if (bean.status === PENDING) {
-                console.warn(`Monitor #${this.id} '${this.name}': Pending: ${bean.msg} | Type: ${this.type}`)
            } else {
                console.warn(`Monitor #${this.id} '${this.name}': Failing: ${bean.msg} | Type: ${this.type}`)
            }

+            monitor_response_time.set(monitorLabelValues, bean.ping)
+
            io.to(this.user_id).emit("heartbeat", bean.toJSON());

            await R.store(bean)
@ -266,7 +270,7 @@ class Monitor extends BeanModel {
                }

                total += value;
-                if (row.status === 0 || row.status === 2) {
+                if (row.status === 0) {
                    downtime += value;
                }
            }
--- a/server/server.js
+++ b/server/server.js
@ -15,7 +15,7 @@ const gracefulShutdown = require('http-graceful-shutdown');
 const Database = require("./database");
 const {sleep} = require("./util");
 const args = require('args-parser')(process.argv);
-
+const apiMetrics = require('prometheus-api-metrics');
 const version = require('../package.json').version;
 const hostname = args.host || "0.0.0.0"
 const port = args.port || 3001
@ -57,6 +57,8 @@ let needSetup = false;

    console.log("Adding route")
    app.use('/', express.static("dist"));
+    app.use(apiMetrics())
+

    app.get('*', function(request, response, next) {
        response.sendFile(process.cwd() + '/dist/index.html');
--- a/yarn.lock
+++ b/yarn.lock
@ -224,6 +224,21 @@
  dependencies:
    defer-to-connect "^2.0.0"

+"@types/accepts@*":
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/@types/accepts/-/accepts-1.3.5.tgz#c34bec115cfc746e04fe5a059df4ce7e7b391575"
+  integrity sha512-jOdnI/3qTpHABjM5cx1Hc0sKsPoYCp+DP/GJRGtDlPd7fiV9oXGGIcjW/ZOxLIvjGz8MA+uMZI9metHlgqbgwQ==
+  dependencies:
+    "@types/node" "*"
+
+"@types/body-parser@*":
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.19.1.tgz#0c0174c42a7d017b818303d4b5d969cb0b75929c"
+  integrity sha512-a6bTJ21vFOGIkwM0kzh9Yr89ziVxq4vYH2fQ6N8AeipEzai/cFK6aGMArIkUeIdRIgpwQa+2bXiLuUJCpSf2Cg==
+  dependencies:
+    "@types/connect" "*"
+    "@types/node" "*"
+
 "@types/cacheable-request@^6.0.1":
  version "6.0.2"
  resolved "https://registry.yarnpkg.com/@types/cacheable-request/-/cacheable-request-6.0.2.tgz#c324da0197de0a98a2312156536ae262429ff6b9"
@ -239,11 +254,33 @@
  resolved "https://registry.yarnpkg.com/@types/component-emitter/-/component-emitter-1.2.10.tgz#ef5b1589b9f16544642e473db5ea5639107ef3ea"
  integrity sha512-bsjleuRKWmGqajMerkzox19aGbscQX5rmmvvXl3wlIp5gMG1HgkiwPxsN5p070fBDKTNSPgojVbuY1+HWMbFhg==

+"@types/connect@*":
+  version "3.4.35"
+  resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.35.tgz#5fcf6ae445e4021d1fc2219a4873cc73a3bb2ad1"
+  integrity sha512-cdeYyv4KWoEgpBISTxWvqYsVy444DOqehiF3fM3ne10AmJ62RSyNkUnxMJXHQWRQQX2eR94m5y1IZyDwBjV9FQ==
+  dependencies:
+    "@types/node" "*"
+
+"@types/content-disposition@*":
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/@types/content-disposition/-/content-disposition-0.5.4.tgz#de48cf01c79c9f1560bcfd8ae43217ab028657f8"
+  integrity sha512-0mPF08jn9zYI0n0Q/Pnz7C4kThdSt+6LD4amsrYDDpgBfrVWa3TcCOxKX1zkGgYniGagRv8heN2cbh+CAn+uuQ==
+
 "@types/cookie@^0.4.0":
  version "0.4.1"
  resolved "https://registry.yarnpkg.com/@types/cookie/-/cookie-0.4.1.tgz#bfd02c1f2224567676c1545199f87c3a861d878d"
  integrity sha512-XW/Aa8APYr6jSVVA1y/DEIZX0/GMKLEVekNG727R8cs56ahETkRAy/3DR7+fJyh7oUgGwNQaRfXCun0+KbWY7Q==

+"@types/cookies@*":
+  version "0.7.7"
+  resolved "https://registry.yarnpkg.com/@types/cookies/-/cookies-0.7.7.tgz#7a92453d1d16389c05a5301eef566f34946cfd81"
+  integrity sha512-h7BcvPUogWbKCzBR2lY4oqaZbO3jXZksexYJVFvkrFeLgbZjQkU4x8pRq6eg2MHXQhY0McQdqmmsxRWlVAHooA==
+  dependencies:
+    "@types/connect" "*"
+    "@types/express" "*"
+    "@types/keygrip" "*"
+    "@types/node" "*"
+
 "@types/cors@^2.8.10":
  version "2.8.12"
  resolved "https://registry.yarnpkg.com/@types/cors/-/cors-2.8.12.tgz#6b2c510a7ad7039e98e7b8d3d6598f4359e5c080"
@ -254,11 +291,45 @@
  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.48.tgz#18dc8091b285df90db2f25aa7d906cfc394b7f74"
  integrity sha512-LfZwXoGUDo0C3me81HXgkBg5CTQYb6xzEl+fNmbO4JdRiSKQ8A0GD1OBBvKAIsbCUgoyAty7m99GqqMQe784ew==

+"@types/express-serve-static-core@^4.17.12", "@types/express-serve-static-core@^4.17.18":
+  version "4.17.24"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.24.tgz#ea41f93bf7e0d59cd5a76665068ed6aab6815c07"
+  integrity sha512-3UJuW+Qxhzwjq3xhwXm2onQcFHn76frIYVbTu+kn24LFxI+dEhdfISDFovPB8VpEgW8oQCTpRuCe+0zJxB7NEA==
+  dependencies:
+    "@types/node" "*"
+    "@types/qs" "*"
+    "@types/range-parser" "*"
+
+"@types/express@*", "@types/express@^4.17.8":
+  version "4.17.13"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.13.tgz#a76e2995728999bab51a33fabce1d705a3709034"
+  integrity sha512-6bSZTPaTIACxn48l50SR+axgrqm6qXFIxrdAKaG6PaJk3+zuUr35hBlgT7vOmJcum+OEaIBLtHV/qloEAFITeA==
+  dependencies:
+    "@types/body-parser" "*"
+    "@types/express-serve-static-core" "^4.17.18"
+    "@types/qs" "*"
+    "@types/serve-static" "*"
+
+"@types/http-assert@*":
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/@types/http-assert/-/http-assert-1.5.1.tgz#d775e93630c2469c2f980fc27e3143240335db3b"
+  integrity sha512-PGAK759pxyfXE78NbKxyfRcWYA/KwW17X290cNev/qAsn9eQIxkH4shoNBafH37wewhDG/0p1cHPbK6+SzZjWQ==
+
 "@types/http-cache-semantics@*":
  version "4.0.1"
  resolved "https://registry.yarnpkg.com/@types/http-cache-semantics/-/http-cache-semantics-4.0.1.tgz#0ea7b61496902b95890dc4c3a116b60cb8dae812"
  integrity sha512-SZs7ekbP8CN0txVG2xVRH6EgKmEm31BOxA07vkFaETzZz1xh+cbt8BcI0slpymvwhx5dlFnQG2rTlPVQn+iRPQ==

+"@types/http-errors@*":
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/@types/http-errors/-/http-errors-1.8.1.tgz#e81ad28a60bee0328c6d2384e029aec626f1ae67"
+  integrity sha512-e+2rjEwK6KDaNOm5Aa9wNGgyS9oSZU/4pfSMMPYNOfjvFI0WVXm29+ITRFr6aKDvvKo7uU1jV68MW4ScsfDi7Q==
+
+"@types/keygrip@*":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@types/keygrip/-/keygrip-1.0.2.tgz#513abfd256d7ad0bf1ee1873606317b33b1b2a72"
+  integrity sha512-GJhpTepz2udxGexqos8wgaBx4I/zWIDPh/KOGEwAqtuGDkOUJu5eFvwmdBX4AmB8Odsr+9pHCQqiAqDL/yKMKw==
+
 "@types/keyv@*":
  version "3.1.2"
  resolved "https://registry.yarnpkg.com/@types/keyv/-/keyv-3.1.2.tgz#5d97bb65526c20b6e0845f6b0d2ade4f28604ee5"
@ -266,6 +337,32 @@
  dependencies:
    "@types/node" "*"

+"@types/koa-compose@*":
+  version "3.2.5"
+  resolved "https://registry.yarnpkg.com/@types/koa-compose/-/koa-compose-3.2.5.tgz#85eb2e80ac50be95f37ccf8c407c09bbe3468e9d"
+  integrity sha512-B8nG/OoE1ORZqCkBVsup/AKcvjdgoHnfi4pZMn5UwAPCbhk/96xyv284eBYW8JlQbQ7zDmnpFr68I/40mFoIBQ==
+  dependencies:
+    "@types/koa" "*"
+
+"@types/koa@*", "@types/koa@^2.11.4":
+  version "2.13.4"
+  resolved "https://registry.yarnpkg.com/@types/koa/-/koa-2.13.4.tgz#10620b3f24a8027ef5cbae88b393d1b31205726b"
+  integrity sha512-dfHYMfU+z/vKtQB7NUrthdAEiSvnLebvBjwHtfFmpZmB7em2N3WVQdHgnFq+xvyVgxW5jKDmjWfLD3lw4g4uTw==
+  dependencies:
+    "@types/accepts" "*"
+    "@types/content-disposition" "*"
+    "@types/cookies" "*"
+    "@types/http-assert" "*"
+    "@types/http-errors" "*"
+    "@types/keygrip" "*"
+    "@types/koa-compose" "*"
+    "@types/node" "*"
+
+"@types/mime@^1":
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.2.tgz#93e25bf9ee75fe0fd80b594bc4feb0e862111b5a"
+  integrity sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==
+
 "@types/node@*", "@types/node@>=10.0.0":
  version "16.3.1"
  resolved "https://registry.yarnpkg.com/@types/node/-/node-16.3.1.tgz#24691fa2b0c3ec8c0d34bfcfd495edac5593ebb4"
@ -281,6 +378,16 @@
  resolved "https://registry.yarnpkg.com/@types/parse-json/-/parse-json-4.0.0.tgz#2f8bb441434d163b35fb8ffdccd7138927ffb8c0"
  integrity sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA==

+"@types/qs@*":
+  version "6.9.7"
+  resolved "https://registry.yarnpkg.com/@types/qs/-/qs-6.9.7.tgz#63bb7d067db107cc1e457c303bc25d511febf6cb"
+  integrity sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw==
+
+"@types/range-parser@*":
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.4.tgz#cd667bcfdd025213aafb7ca5915a932590acdcdc"
+  integrity sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw==
+
 "@types/responselike@*", "@types/responselike@^1.0.0":
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/@types/responselike/-/responselike-1.0.0.tgz#251f4fe7d154d2bad125abe1b429b23afd262e29"
@ -288,6 +395,14 @@
  dependencies:
    "@types/node" "*"

+"@types/serve-static@*":
+  version "1.13.10"
+  resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.13.10.tgz#f5e0ce8797d2d7cc5ebeda48a52c96c4fa47a8d9"
+  integrity sha512-nCkHGI4w7ZgAdNkrEu0bv+4xNV/XDqW+DydknebMOQwkpDGx8G+HTlj7R7ABI8i8nKxVw0wtKPi1D+lPOkh4YQ==
+  dependencies:
+    "@types/mime" "^1"
+    "@types/node" "*"
+
 "@vitejs/plugin-legacy@1.4.4":
  version "1.4.4"
  resolved "https://registry.yarnpkg.com/@vitejs/plugin-legacy/-/plugin-legacy-1.4.4.tgz#a13bcfdf053f219fd8db6199e0d19c87b3d12994"
@ -725,6 +840,11 @@ binary-extensions@^2.0.0:
  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-2.2.0.tgz#75f502eeaf9ffde42fc98829645be4ea76bd9e2d"
  integrity sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==

+bintrees@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/bintrees/-/bintrees-1.0.1.tgz#0e655c9b9c2435eaab68bf4027226d2b55a34524"
+  integrity sha1-DmVcm5wkNeqraL9AJyJtK1WjRSQ=
+
 bl@^4.1.0:
  version "4.1.0"
  resolved "https://registry.yarnpkg.com/bl/-/bl-4.1.0.tgz#451535264182bec2fbbc83a62ab98cf11d9f7b3a"
@ -2753,6 +2873,11 @@ lodash.camelcase@^4.3.0:
  resolved "https://registry.yarnpkg.com/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz#b28aa6288a2b9fc651035c7711f65ab6190331a6"
  integrity sha1-soqmKIorn8ZRA1x3EfZathkDMaY=

+lodash.get@^4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/lodash.get/-/lodash.get-4.4.2.tgz#2d177f652fa31e939b4438d5341499dfa3825e99"
+  integrity sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=
+
 lodash.includes@^4.3.0:
  version "4.3.0"
  resolved "https://registry.yarnpkg.com/lodash.includes/-/lodash.includes-4.3.0.tgz#60bb98a87cb923c68ca1e51325483314849f553f"
@ -3516,6 +3641,11 @@ picomatch@^2.0.4, picomatch@^2.2.1, picomatch@^2.2.3:
  resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.3.0.tgz#f1f061de8f6a4bf022892e2d128234fb98302972"
  integrity sha512-lY1Q/PiJGC2zOv/z391WOTD+Z02bCgsFfvxoXXf6h7kv9o+WmsmzYqrAwY63sNgOxE4xEdq0WyUnXfKeBrSvYw==

+pkginfo@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/pkginfo/-/pkginfo-0.4.1.tgz#b5418ef0439de5425fc4995042dced14fb2a84ff"
+  integrity sha1-tUGO8EOd5UJfxJlQQtztFPsqhP8=
+
 posix-character-classes@^0.1.0:
  version "0.1.1"
  resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@ -3595,6 +3725,25 @@ process-nextick-args@~2.0.0:
  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
  integrity sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==

+prom-client@13.1.0:
+  version "13.1.0"
+  resolved "https://registry.yarnpkg.com/prom-client/-/prom-client-13.1.0.tgz#1185caffd8691e28d32e373972e662964e3dba45"
+  integrity sha512-jT9VccZCWrJWXdyEtQddCDszYsiuWj5T0ekrPszi/WEegj3IZy6Mm09iOOVM86A4IKMWq8hZkT2dD9MaSe+sng==
+  dependencies:
+    tdigest "^0.1.1"
+
+prometheus-api-metrics@3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/prometheus-api-metrics/-/prometheus-api-metrics-3.2.0.tgz#3af90989271abb55b7e0405bdfcb161f403a361c"
+  integrity sha512-JekPhtIBLGX8HxD2EndvBsLU6ZQ1JVVqyHWVfm5CposUOqgBHXnUVFW6x5Ux2gykpdej/5LLM3dU9V8Ma7GfkA==
+  dependencies:
+    "@types/express" "^4.17.8"
+    "@types/express-serve-static-core" "^4.17.12"
+    "@types/koa" "^2.11.4"
+    debug "^3.2.6"
+    lodash.get "^4.4.2"
+    pkginfo "^0.4.1"
+
 protocols@^1.1.0, protocols@^1.4.0:
  version "1.4.8"
  resolved "https://registry.yarnpkg.com/protocols/-/protocols-1.4.8.tgz#48eea2d8f58d9644a4a32caae5d5db290a075ce8"
@ -4429,6 +4578,13 @@ tcp-ping@0.1.1:
  resolved "https://registry.yarnpkg.com/tcp-ping/-/tcp-ping-0.1.1.tgz#02dd7f42b5bf7d7cb78d5b7aacefa155fd8f7c0c"
  integrity sha1-At1/QrW/fXy3jVt6rO+hVf2PfAw=

+tdigest@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/tdigest/-/tdigest-0.1.1.tgz#2e3cb2c39ea449e55d1e6cd91117accca4588021"
+  integrity sha1-Ljyyw56kSeVdHmzZEReszKRYgCE=
+  dependencies:
+    bintrees "1.0.1"
+
 through@^2.3.6:
  version "2.3.8"
  resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"