self-hosted/uptime-kuma
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add ping and fix uptime

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This commit is contained in:
LouisLam 2021-07-01 17:00:23 +08:00
parent 9c653c3d05
commit a6b5986dd6
9 changed files with 285 additions and 97 deletions
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29
README.md Normal file
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@ -0,0 +1,29 @@
# Uptime Kuma
# Features
* Monitoring uptime for HTTP(s) / TCP / Ping.
* Fancy, Reactive, Fast UI/UX.
* Notifications via Webhook, Telegram, Discord and email (SMTP).
* 20 seconds interval.
# How to Use
npm
Docker
One-click Deploy to DigitalOcean
# Motivation
* I was looking for a self-hosted monitoring tool like "Uptime Robot", but it is hard to find a suitable one.
* Want to build a fancy UI.
* Learn Vue 3 and vite.js.
* Show the power of Bootstrap 5.
* Try to use WebSocket with SPA instead of REST API.
* Deploy my first Docker image to Docker Hub.
If you love this project, please consider giving me a ⭐.

44
server/model/monitor.js
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@ -5,7 +5,7 @@ var timezone = require('dayjs/plugin/timezone')
dayjs.extend(utc)
dayjs.extend(timezone)
const axios = require("axios");
const {tcping} = require("../util-server");
const {tcping, ping} = require("../util-server");
const {R} = require("redbean-node");
const {BeanModel} = require("redbean-node/dist/bean-model");
@ -67,6 +67,10 @@ class Monitor extends BeanModel {
} else if (this.type === "port") {
bean.ping = await tcping(this.hostname, this.port);
bean.status = 1;
} else if (this.type === "ping") {
bean.ping = await ping(this.hostname);
bean.status = 1;
}
} catch (error) {
@ -125,19 +129,49 @@ class Monitor extends BeanModel {
* @param duration : int Hours
*/
static async sendUptime(duration, io, monitorID, userID) {
let downtime = parseInt(await R.getCell(`
SELECT SUM(duration)
let sec = duration * 3600;
let downtimeList = await R.getAll(`
SELECT duration, time
FROM heartbeat
WHERE time > DATE('now', ? || ' hours')
AND status = 0
AND monitor_id = ? `, [
-duration,
monitorID
]));
]);
let downtime = 0;
for (let row of downtimeList) {
let value = parseInt(row.duration)
let time = row.time
// Handle if heartbeat duration longer than the target duration
// e.g. Heartbeat duration = 28hrs, but target duration = 24hrs
if (value <= sec) {
downtime += value;
} else {
console.log("Now: " + dayjs.utc());
console.log("Time: " + dayjs(time))
let trim = dayjs.utc().diff(dayjs(time), 'second');
console.log("trim: " + trim);
value = sec - trim;
if (value < 0) {
value = 0;
}
downtime += value;
}
}
let sec = duration * 3600;
let uptime = (sec - downtime) / sec;
if (uptime < 0) {
uptime = 0;
}
io.to(userID).emit("uptime", monitorID, duration, uptime);
}
}

118
server/ping-lite.js Normal file
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@ -0,0 +1,118 @@
// https://github.com/ben-bradley/ping-lite/blob/master/ping-lite.js
// Fixed on Windows
var spawn = require('child_process').spawn,
events = require('events'),
fs = require('fs'),
WIN = /^win/.test(process.platform),
LIN = /^linux/.test(process.platform),
MAC = /^darwin/.test(process.platform);
module.exports = Ping;
function Ping(host, options) {
if (!host)
throw new Error('You must specify a host to ping!');
this._host = host;
this._options = options = (options || {});
events.EventEmitter.call(this);
if (WIN) {
this._bin = 'c:/windows/system32/ping.exe';
this._args = (options.args) ? options.args : [ '-n', '1', '-w', '5000', host ];
this._regmatch = /[><=]([0-9.]+?)ms/;
}
else if (LIN) {
this._bin = '/bin/ping';
this._args = (options.args) ? options.args : [ '-n', '-w', '2', '-c', '1', host ];
this._regmatch = /=([0-9.]+?) ms/; // need to verify this
}
else if (MAC) {
this._bin = '/sbin/ping';
this._args = (options.args) ? options.args : [ '-n', '-t', '2', '-c', '1', host ];
this._regmatch = /=([0-9.]+?) ms/;
}
else {
throw new Error('Could not detect your ping binary.');
}
if (!fs.existsSync(this._bin))
throw new Error('Could not detect '+this._bin+' on your system');
this._i = 0;
return this;
}
Ping.prototype.__proto__ = events.EventEmitter.prototype;
// SEND A PING
// ===========
Ping.prototype.send = function(callback) {
var self = this;
callback = callback || function(err, ms) {
if (err) return self.emit('error', err);
else return self.emit('result', ms);
};
var _ended, _exited, _errored;
this._ping = spawn(this._bin, this._args); // spawn the binary
this._ping.on('error', function(err) { // handle binary errors
_errored = true;
callback(err);
});
this._ping.stdout.on('data', function(data) { // log stdout
this._stdout = (this._stdout || '') + data;
});
this._ping.stdout.on('end', function() {
_ended = true;
if (_exited && !_errored) onEnd.call(self._ping);
});
this._ping.stderr.on('data', function(data) { // log stderr
this._stderr = (this._stderr || '') + data;
});
this._ping.on('exit', function(code) { // handle complete
_exited = true;
if (_ended && !_errored) onEnd.call(self._ping);
});
function onEnd() {
var stdout = this.stdout._stdout,
stderr = this.stderr._stderr,
ms;
if (stderr)
return callback(new Error(stderr));
else if (!stdout)
return callback(new Error('No stdout detected'));
ms = stdout.match(self._regmatch); // parse out the ##ms response
ms = (ms && ms[1]) ? Number(ms[1]) : ms;
callback(null, ms);
}
};
// CALL Ping#send(callback) ON A TIMER
// ===================================
Ping.prototype.start = function(callback) {
var self = this;
this._i = setInterval(function() {
self.send(callback);
}, (self._options.interval || 5000));
self.send(callback);
};
// STOP SENDING PINGS
// ==================
Ping.prototype.stop = function() {
clearInterval(this._i);
};

17
server/util-server.js
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@ -1,4 +1,5 @@
const tcpp = require('tcp-ping');
const Ping = require("./ping-lite");
exports.tcping = function (hostname, port) {
return new Promise((resolve, reject) => {
@ -20,3 +21,19 @@ exports.tcping = function (hostname, port) {
});
});
}
exports.ping = function (hostname) {
return new Promise((resolve, reject) => {
const ping = new Ping(hostname);
ping.send(function(err, ms) {
if (err) {
reject(err)
} else if (ms === null) {
reject(new Error("timeout"))
} else {
resolve(Math.round(ms))
}
});
});
}

2
src/components/CountUp.vue
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@ -48,7 +48,7 @@ export default {
let frames = 12;
let step = Math.floor(diff / frames);
if (! this.isNum || (diff > 0 && step < 1) || (diff < 0 && step > 1) || diff === 0) {
if (isNaN(step) || ! this.isNum || (diff > 0 && step < 1) || (diff < 0 && step > 1) || diff === 0) {
// Lazy to NOT this condition, hahaha.
} else {
for (let i = 1; i < frames; i++) {

2
src/components/Uptime.vue
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@ -18,7 +18,7 @@ export default {
let key = this.monitor.id + "_" + this.type;
if (this.$root.uptimeList[key]) {
if (this.$root.uptimeList[key] !== undefined) {
return Math.round(this.$root.uptimeList[key] * 10000) / 100 + "%";
} else {
return "N/A"

146
src/pages/DashboardHome.vue
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@ -5,60 +5,6 @@
<div class="shadow-box big-padding text-center">
<div class="row">
<div class="col-12">
<div class="hp-bar-big">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
</div>
<div class="col">
<h3>Up</h3>
<span class="num">{{ stats.up }}</span>
@ -76,32 +22,43 @@
<span class="num text-secondary">{{ stats.pause }}</span>
</div>
</div>
<div class="row" v-if="false">
<div class="col-3">
<h3>Uptime</h3>
<p>(24-hour)</p>
<span class="num"></span>
</div>
<div class="col-3">
<h3>Uptime</h3>
<p>(30-day)</p>
<span class="num"></span>
</div>
</div>
</div>
<div class="row mt-4">
<div class="col-8">
<h4>Latest Incident</h4>
<div class="shadow-box" style="margin-top: 25px;">
<table class="table table-borderless table-hover">
<thead>
<tr>
<th>Name</th>
<th>Status</th>
<th>DateTime</th>
<th>Message</th>
</tr>
</thead>
<tbody>
<tr v-for="beat in importantHeartBeatList">
<td>{{ beat.name }}</td>
<td><Status :status="beat.status" /></td>
<td><Datetime :value="beat.time" /></td>
<td>{{ beat.msg }}</td>
</tr>
<div class="shadow-box bg-danger text-light">
MySQL was down.
</div>
<div class="shadow-box bg-primary text-light">
No issues was found.
</div>
</div>
<div class="col-4">
<h4>Overall Uptime</h4>
<div class="shadow-box">
<div>100.00% (24 hours)</div>
<div>100.00% (7 days)</div>
<div>100.00% (30 days)</div>
</div>
</div>
<tr v-if="importantHeartBeatList.length === 0">
<td colspan="4">No important events</td>
</tr>
</tbody>
</table>
</div>
</div>
@ -109,7 +66,10 @@
</template>
<script>
import Status from "../components/Status.vue";
import Datetime from "../components/Datetime.vue";
export default {
components: {Datetime, Status},
computed: {
stats() {
let result = {
@ -140,6 +100,25 @@ export default {
return result;
},
importantHeartBeatList() {
let result = [];
for (let monitorID in this.$root.importantHeartbeatList) {
let list = this.$root.importantHeartbeatList[monitorID]
result = result.concat(list);
}
for (let beat of result) {
let monitor = this.$root.monitorList[beat.monitorID];
if (monitor) {
beat.name = monitor.name
}
}
return result;
}
}
}
</script>
@ -151,5 +130,18 @@ export default {
font-size: 30px;
color: $primary;
font-weight: bold;
display: block;
}
.shadow-box {
padding: 20px;
}
table {
font-size: 14px;
tr {
transition: all ease-in-out 0.2ms;
}
}
</style>

3
src/pages/Details.vue
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@ -2,7 +2,8 @@
<h1> {{ monitor.name }}</h1>
<p class="url">
<a :href="monitor.url" target="_blank" v-if="monitor.type === 'http'">{{ monitor.url }}</a>
<span v-if="monitor.type === 'port'">{{ monitor.hostname }}:{{ monitor.port }}</span>
<span v-if="monitor.type === 'port'">TCP Ping {{ monitor.hostname }}:{{ monitor.port }}</span>
<span v-if="monitor.type === 'ping'">Ping: {{ monitor.hostname }}</span>
</p>
<div class="functions">

21
src/pages/EditMonitor.vue
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@ -27,22 +27,19 @@
<input type="url" class="form-control" id="url" v-model="monitor.url" pattern="https?://.+" required>
</div>
<template v-if="monitor.type === 'port' ">
<div class="mb-3">
<label for="hostname" class="form-label">Hostname</label>
<input type="text" class="form-control" id="hostname" v-model="monitor.hostname" required>
</div>
<div class="mb-3">
<label for="port" class="form-label">Port</label>
<input type="number" class="form-control" id="port" v-model="monitor.port" required min="0" max="65535">
</div>
</template>
<div class="mb-3" v-if="monitor.type === 'port' || monitor.type === 'ping' ">
<label for="hostname" class="form-label">Hostname</label>
<input type="text" class="form-control" id="hostname" v-model="monitor.hostname" required>
</div>
<div class="mb-3" v-if="monitor.type === 'port' ">
<label for="port" class="form-label">Port</label>
<input type="number" class="form-control" id="port" v-model="monitor.port" required min="0" max="65535" step="1">
</div>
<div class="mb-3">
<label for="interval" class="form-label">Heartbeat Interval (Every {{ monitor.interval }} seconds)</label>
<input type="number" class="form-control" id="interval" v-model="monitor.interval" required min="20">
<input type="number" class="form-control" id="interval" v-model="monitor.interval" required min="20" step="1">
</div>
<div>