Create frontend PoC

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+
+[*.java]
+indent_style = space
+indent_size = 4

.gitattributes

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+*.bat eol=crlf
+* text=auto eol=lf

.gitignore

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+.idea/
+target/
+.gradle/
+build/
+*.jar
+*.iml
+*.db

LICENSE

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+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
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+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -0,0 +1 @@
+# Okaeri Timings

frontend/.gitignore

@@ -0,0 +1,23 @@
+.DS_Store
+node_modules
+/dist
+
+
+# local env files
+.env.local
+.env.*.local
+
+# Log files
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Editor directories and files
+.idea
+.vscode
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

frontend/README.md

@@ -0,0 +1,24 @@
+# frontend
+
+## Project setup
+```
+yarn install
+```
+
+### Compiles and hot-reloads for development
+```
+yarn serve
+```
+
+### Compiles and minifies for production
+```
+yarn build
+```
+
+### Lints and fixes files
+```
+yarn lint
+```
+
+### Customize configuration
+See [Configuration Reference](https://cli.vuejs.org/config/).

frontend/babel.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  presets: [
+    '@vue/cli-plugin-babel/preset'
+  ]
+}

frontend/package.json

@@ -0,0 +1,50 @@
+{
+  "name": "frontend",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "serve": "vue-cli-service serve",
+    "build": "vue-cli-service build",
+    "lint": "vue-cli-service lint"
+  },
+  "dependencies": {
+    "@fortawesome/fontawesome-svg-core": "^1.2.36",
+    "@fortawesome/free-brands-svg-icons": "^5.15.4",
+    "@fortawesome/free-solid-svg-icons": "^5.15.4",
+    "@fortawesome/vue-fontawesome": "^3.0.0-5",
+    "apexcharts": "^3.33.0",
+    "core-js": "^3.6.5",
+    "mdb-vue-ui-kit": "^1.9.0",
+    "typeface-roboto": "^1.1.13",
+    "vue": "^3.0.0",
+    "vue3-apexcharts": "^1.4.1"
+  },
+  "devDependencies": {
+    "@vue/cli-plugin-babel": "~4.5.0",
+    "@vue/cli-plugin-eslint": "~4.5.0",
+    "@vue/cli-service": "~4.5.0",
+    "@vue/compiler-sfc": "^3.0.0",
+    "babel-eslint": "^10.1.0",
+    "eslint": "^6.7.2",
+    "eslint-plugin-vue": "^7.0.0"
+  },
+  "eslintConfig": {
+    "root": true,
+    "env": {
+      "node": true
+    },
+    "extends": [
+      "plugin:vue/vue3-essential",
+      "eslint:recommended"
+    ],
+    "parserOptions": {
+      "parser": "babel-eslint"
+    },
+    "rules": {}
+  },
+  "browserslist": [
+    "> 1%",
+    "last 2 versions",
+    "not dead"
+  ]
+}

frontend/public/index.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width,initial-scale=1.0">
+    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
+    <title>Okaeri Timings</title>
+  </head>
+  <body>
+    <noscript>
+      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
+    </noscript>
+    <div id="app"></div>
+    <!-- built files will be auto injected -->
+  </body>
+</html>

frontend/public/otimings.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+
+print_metadata() {
+    echo "#"
+    echo "# Okaeri Timings 1.0"
+    echo "#"
+    echo "# Hostname: $(hostname)"
+#     echo "# IP: $(curl -s https://checkip.amazonaws.com/)"
+    echo "# User: $(whoami)"
+    echo "#"
+    echo "# Kernel: $(uname -r)"
+    echo "# OS: $(cat /etc/os-release | grep PRETTY_NAME | awk -F '"' '{print $2}')"
+    echo "#"
+}
+
+print_header() {
+    echo "timestamp,cpu/user,cpu/nice,cpu/system,cpu/idle,cpu/iowait,cpu/irq,cpu/softirq,cpu/steal,cpu/guest,cpu/guest_nice,mem/total,mem/free,mem/available,mem/buffers,mem/cached,swap/cached,swap/total,swap/free"
+}
+
+print_data() {
+    timestamp=$(date --iso-8601=seconds)
+
+    procstatout=$(cat /proc/stat | grep -m1 ^cpu | cut -d ' ' -f 3-)
+    user=$(echo "$procstatout" | awk '{print $1}')
+    nice=$(echo "$procstatout" | awk '{print $2}')
+    system=$(echo "$procstatout" | awk '{print $3}')
+    idle=$(echo "$procstatout" | awk '{print $4}')
+    iowait=$(echo "$procstatout" | awk '{print $5}')
+    irq=$(echo "$procstatout" | awk '{print $6}')
+    softirq=$(echo "$procstatout" | awk '{print $7}')
+    steal=$(echo "$procstatout" | awk '{print $8}')
+    guest=$(echo "$procstatout" | awk '{print $9}')
+    guest_nice=$(echo "$procstatout" | awk '{print $10}')
+
+    meminfout=$(cat /proc/meminfo)
+    memtotal=$(echo "$meminfout" | grep ^MemTotal: | awk '{print $2}')
+    memfree=$(echo "$meminfout" | grep ^MemFree: | awk '{print $2}')
+    membuffers=$(echo "$meminfout" | grep ^Buffers: | awk '{print $2}')
+    memcached=$(echo "$meminfout" | grep ^Cached: | awk '{print $2}')
+    memavailable=$(echo "$meminfout" | grep ^MemAvailable: | awk '{print $2}')
+    swapcached=$(echo "$meminfout" | grep ^SwapCached: | awk '{print $2}')
+    swaptotal=$(echo "$meminfout" | grep ^SwapTotal: | awk '{print $2}')
+    swapfree=$(echo "$meminfout" | grep ^SwapFree: | awk '{print $2}')
+
+    echo "$timestamp,$user,$nice,$system,$idle,$iowait,$irq,$softirq,$steal,$guest,$guest_nice,$memtotal,$memfree,$memavailable,$membuffers,$memcached,$swapcached,$swaptotal,$swapfree"
+}
+
+print_metadata
+print_header
+print_data

frontend/src/App.vue

@@ -0,0 +1,271 @@
+<template>
+
+  <MDBNavbar expand="lg" dark bg="dark" container>
+    <MDBNavbarNav class="mb-lg-0">
+      <MDBNavbarItem href="#" class="font-weight-bold" active>Okaeri Timings</MDBNavbarItem>
+    </MDBNavbarNav>
+    <MDBNavbarNav right class="mb-lg-0">
+      <MDBNavbarItem href="https://github.com/OkaeriPoland/okaeri-timings" active>
+        <font-awesome-icon :icon="['fab', 'github']"/>
+        GitHub
+      </MDBNavbarItem>
+    </MDBNavbarNav>
+  </MDBNavbar>
+
+  <MDBContainer class="my-5">
+    <MDBRow class="gy-4">
+
+      <MDBCol md="12" v-if="!summaryLoaded">
+        <MDBCard>
+          <MDBCardBody>
+            <MDBCardTitle>1. Generate report</MDBCardTitle>
+            <MDBCardText>
+              Execute this command on your Linux based system:
+              <pre class="mt-2 mb-4">curl -s https://timings.okaeri.eu/otimings.sh | bash -s 60</pre>
+              <strong>Note:</strong> report generation takes a long time. Make sure it runs till the end (e.g. using <code>screen</code>)
+              for the best results. The default run-time is <code>60</code> minutes and cannot be shorter than 5 minutes. After the script
+              finalizes its run, the file named 'okaeri-timings-XXX.csv' (e.g. 'okaeri-timings-1642975054.csv') will be available.
+            </MDBCardText>
+          </MDBCardBody>
+        </MDBCard>
+      </MDBCol>
+
+      <MDBCol md="12" v-if="!summaryLoaded">
+        <MDBCard>
+          <MDBCardBody>
+            <MDBCardTitle>2. Upload report</MDBCardTitle>
+            <MDBFile size="lg" label="Please upload 'okaeri-timings-XXX.csv' file" accept=".csv" v-model="files"/>
+          </MDBCardBody>
+        </MDBCard>
+      </MDBCol>
+
+      <MDBCol md="12" v-if="summaryLoaded">
+        <MDBCard>
+          <MDBCardBody>
+            <MDBCardTitle class="d-flex">
+              <span class="me-1">Summary</span>
+              <MDBBadge color="primary">/proc/stat</MDBBadge>
+            </MDBCardTitle>
+            <MDBCardText>
+              This section contains raw data from <code>/proc/stat</code>, visualised and with calculated relative (percent) share of the total CPU time.
+              <ul>
+                <li><em>Current run</em> represents the data between the start and the end of the report generation.</li>
+                <li><em>All time</em> represents absolute values from the last system restart until the end of the report generation.</li>
+              </ul>
+            </MDBCardText>
+            <MDBTabs v-model="summaryTab">
+              <MDBTabNav tabsClasses="mb-3">
+                <MDBTabItem tabId="summary-current-run" href="summary-current-run">Current run</MDBTabItem>
+                <MDBTabItem tabId="summary-all-time" href="summary-all-time">All time</MDBTabItem>
+              </MDBTabNav>
+              <MDBTabContent>
+                <MDBTabPane tabId="summary-current-run">
+                  <Summary :key="summaryTab" :stats="summaryStats" :chart-series="summarySeries"/>
+                </MDBTabPane>
+                <MDBTabPane tabId="summary-all-time">
+                  <Summary :key="summaryTab" :stats="summaryStatsAll" :chart-series="summarySeriesAll"/>
+                </MDBTabPane>
+              </MDBTabContent>
+            </MDBTabs>
+          </MDBCardBody>
+        </MDBCard>
+      </MDBCol>
+
+      <MDBCol md="12" v-if="summaryLoaded">
+        <MDBCard>
+          <MDBCardBody>
+            <MDBCardTitle class="d-flex">
+              <span class="me-1">History</span>
+              <MDBBadge color="primary">/proc/stat</MDBBadge>
+            </MDBCardTitle>
+            <MDBCardText>
+              This section contains data (currently <code>{{ historyTab.replace('history-', '') }}</code>) changes over time represented as a relative (percent) share of the total CPU time.
+            </MDBCardText>
+            <MDBTabs v-model="historyTab">
+              <MDBTabNav tabsClasses="mb-3">
+                <MDBTabItem v-for="label in dataLabels" :key="label" :tabId="`history-${label}`" :href="`history-${label}`">{{ label }}</MDBTabItem>
+              </MDBTabNav>
+              <MDBTabContent>
+                <MDBTabPane v-for="label in dataLabels" :key="label" :tabId="`history-${label}`">
+                  <History :key="historyTab" :name="label" :chart-series="historySeries[label]"/>
+                </MDBTabPane>
+              </MDBTabContent>
+            </MDBTabs>
+          </MDBCardBody>
+        </MDBCard>
+      </MDBCol>
+
+      <MDBCol md="12" v-if="summaryLoaded">
+        <MDBCard>
+          <MDBCardBody>
+            <MDBCardTitle class="d-flex">
+              <span class="me-1">History</span>
+              <MDBBadge color="primary">/proc/meminfo</MDBBadge>
+            </MDBCardTitle>
+            <MDBCardText>
+              This section contains memory usage changes over time.
+            </MDBCardText>
+            <code>TODO</code>
+          </MDBCardBody>
+        </MDBCard>
+      </MDBCol>
+
+    </MDBRow>
+  </MDBContainer>
+
+</template>
+
+<script>
+import {
+  MDBBadge,
+  MDBCard,
+  MDBCardBody,
+  MDBCardText,
+  MDBCardTitle,
+  MDBCol,
+  MDBContainer,
+  MDBFile,
+  MDBNavbar,
+  MDBNavbarItem,
+  MDBNavbarNav,
+  MDBRow,
+  MDBTabContent,
+  MDBTabItem,
+  MDBTabNav,
+  MDBTabPane,
+  MDBTabs
+} from 'mdb-vue-ui-kit';
+import Summary from "@/components/Summary";
+import History from "@/components/History";
+import {ref} from "vue";
+
+export default {
+  components: {
+    History,
+    Summary,
+    MDBNavbar,
+    MDBNavbarNav,
+    MDBNavbarItem,
+    MDBContainer,
+    MDBCard,
+    MDBCardBody,
+    MDBCardTitle,
+    MDBFile,
+    MDBRow,
+    MDBCol,
+    MDBTabs,
+    MDBTabNav,
+    MDBTabItem,
+    MDBTabContent,
+    MDBTabPane,
+    MDBCardText,
+    MDBBadge
+  },
+  props: {
+    msg: String
+  },
+  watch: {
+    files: async function (value) {
+      this.rawData = (await this.fileToString(value[0])).split(/\r?\n/).map(l => l.split(" "));
+      const firstLineData = this.rawData[0].slice(1).map(i => parseInt(i));
+      const lastLineData = this.rawData[this.rawData.length - 1].slice(1).map(i => parseInt(i));
+      // update summary
+      this.summarySeriesAll = lastLineData;
+      this.summarySeries = lastLineData.map((i, index) => i - firstLineData[index]);
+      this.summaryLoaded = true;
+      // update history
+      this.dataLabels.forEach((label, index) => {
+        this.historySeries[label] = this.calculateHistory(this.rawData, index);
+      });
+    },
+    summarySeries: function (value) {
+      this.summaryStats = this.calculateSummaryStats(value);
+    },
+    summarySeriesAll: function (value) {
+      this.summaryStatsAll = this.calculateSummaryStats(value);
+    }
+  },
+  setup: function () {
+    return {
+      dataLabels: ['user', 'nice', 'system', 'idle', 'iowait', 'irq', 'softirq', 'steal', 'guest', 'guest_nice']
+    }
+  },
+  data: function () {
+    return {
+      files: ref([]),
+      rawData: undefined,
+      // summary
+      summaryTab: ref('summary-current-run'),
+      summaryLoaded: false,
+      summaryStats: [],
+      summaryStatsAll: [],
+      summarySeries: [],
+      summarySeriesAll: [],
+      // steal
+      historyTab: ref('history-steal'),
+      historySeries: {},
+    };
+  },
+  methods: {
+    fileToString(file) {
+      return new Promise((resolve, reject) => {
+        const reader = new FileReader();
+        reader.readAsText(file, "UTF-8");
+        reader.onload = event => resolve(event.target.result)
+        reader.onerror = event => reject(event);
+      });
+    },
+    calculateSummaryStats(data) {
+      const dataTotal = data.reduce((a, b) => a + b, 0);
+      let stats = [];
+      this.dataLabels.forEach((label, index) => {
+        stats[index] = {
+          name: label,
+          value: data[index],
+          percent: (data[index] / dataTotal) * 100
+        }
+      });
+      stats.sort((a, b) => {
+        return (a.value > b.value) ? -1 : 1;
+      });
+      return stats;
+    },
+    calculateHistory(rawData, index) {
+      let history = [];
+      let lastTotal = 0;
+      let lastValue = 0;
+      rawData.forEach(line => {
+        const date = new Date(line[0]);
+        const rawValue = parseInt(line[index + 1]);
+        const value = rawValue - lastValue;
+        const rawTotal = line.slice(1).map(i => parseInt(i)).reduce((a, b) => a + b, 0);
+        const total = rawTotal - lastTotal;
+        history.push([date, ((value / total) * 100)])
+        lastTotal = rawTotal;
+        lastValue = rawValue;
+      })
+      return history;
+    }
+  }
+}
+</script>
+
+<style>
+body {
+  min-height: 100vh;
+  background-color: #eaeaea;
+}
+
+#app {
+  font-family: 'Roboto', Avenir, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+pre {
+  border: 1px solid;
+  border-radius: 2px;
+  background-color: rgba(0, 0, 0, 0.05);
+  padding: 5px;
+}
+</style>

frontend/src/components/History.vue

@@ -0,0 +1,42 @@
+<template>
+  <apexchart type="line" height="300" :options="chartOptions" :series="[{name: name, data: chartSeries}]"></apexchart>
+</template>
+
+<script>
+export default {
+  components: {
+  },
+  props: {
+    name: {
+      type: String
+    },
+    chartOptions: {
+      type: Object,
+      default: function () {
+        return {
+          fill: {type: 'solid'},
+          xaxis: {type: 'datetime'},
+          yaxis: {
+            labels: {
+              formatter: function (value) {
+                return value.toFixed(3) + '%';
+              }
+            },
+          },
+          tooltip: {
+            x: {
+              format: "yyyy-MM-dd HH:mm:ss"
+            }
+          },
+          dataLabels: {enabled: false},
+          animations: {enabled: false},
+          stroke: {curve: 'straight'}
+        };
+      }
+    },
+    chartSeries: {
+      type: Array
+    }
+  }
+}
+</script>

frontend/src/components/Summary.vue

@@ -0,0 +1,239 @@
+<template>
+  <MDBRow>
+    <MDBCol md="7">
+      <MDBTable>
+        <thead>
+        <tr>
+          <th scope="col" style="width: 30%">#</th>
+          <th scope="col" style="width: 40%">Value</th>
+          <th scope="col" style="width: 30%">Share</th>
+        </tr>
+        </thead>
+        <tbody>
+        <tr v-for="stat in stats" :key="stat.name">
+          <th scope="row">{{ stat.name }}</th>
+          <td>{{ stat.value }}</td>
+          <td>
+            <template v-if="warningPoints[stat.name] && warningPoints[stat.name](stat.percent) !== null">
+              <MDBBadge :color="warningPoints[stat.name](stat.percent)">
+                {{ (stat.percent).toFixed(3) }}%
+                <font-awesome-icon icon="exclamation-triangle"/>
+              </MDBBadge>
+            </template>
+            <template v-else>
+              {{ (stat.percent).toFixed(3) }}%
+            </template>
+          </td>
+        </tr>
+        </tbody>
+      </MDBTable>
+    </MDBCol>
+    <MDBCol md="5" class="d-flex flex-column">
+      <apexchart type="pie" height="300" class="mb-4" :options="chartOptions" :series="chartSeries"></apexchart>
+      <MDBBtn outline="primary" class="mt-auto ms-auto" aria-controls="summaryHelp" @click="summaryHelpModal = true">
+        <font-awesome-icon icon="question-circle"/>
+        Help
+      </MDBBtn>
+    </MDBCol>
+
+    <MDBModal id="summaryHelpModal" tabindex="-1" labelledby="summaryHelpModalLabel" class="modal-big" v-model="summaryHelpModal">
+      <MDBModalHeader>
+        <MDBModalTitle id="summaryHelpModalLabel"><font-awesome-icon icon="question-circle"/> Help</MDBModalTitle>
+      </MDBModalHeader>
+      <MDBModalBody>
+        <h6>user</h6>
+        <p>
+          Time spent in user mode.<br>
+          (e.g. <mark>applications</mark>)
+        </p>
+
+        <h6>nice</h6>
+        <p>
+          Time spent in user mode with low priority (nice).<br>
+          (e.g. <mark>applications running with <a href="https://en.wikipedia.org/wiki/Nice_(Unix)" target="_blank" rel="noopener nofollow noreferrer">nice > 0</a></mark>)
+        </p>
+
+        <h6>system</h6>
+        <p>
+          Time spent in system mode.<br>
+          (e.g. <mark>networking</mark>, <mark>firewall</mark>, <mark>drivers</mark>)
+        </p>
+
+        <h6>idle</h6>
+        <p>Time spent in the idle task. This value should be USER_HZ times the second entry in the /proc/uptime pseudo-file.</p>
+
+        <h6>iowait <small>(since Linux 2.5.41)</small></h6>
+        <p>Time waiting for I/O to complete. This value is not reliable, for the following reasons:</p>
+        <ol>
+          <li>
+            The CPU will not wait for I/O to complete; iowait is the time that a task is waiting for I/O to complete.
+            When a CPU goes into idle state for outstanding task I/O, another task will be scheduled on this CPU.
+          </li>
+          <li>
+            On a multi-core CPU, the task waiting for I/O to complete is not running on any CPU, so the iowait
+            of each CPU is difficult to calculate.
+          </li>
+          <li>
+            The value in this field may decrease in certain conditions.
+          </li>
+        </ol>
+
+        <h6>irq <small>(since Linux 2.6.0)</small></h6>
+        <p>Time servicing interrupts.</p>
+
+        <h6>softirq <small>(since Linux 2.6.0)</small></h6>
+        <p>Time servicing softirqs.</p>
+
+        <h6>steal <small>(since Linux 2.6.11)</small></h6>
+        <p>Stolen time, which is the time spent in other operating systems when running in a virtualized environment.</p>
+
+        <h6>guest <small>(since Linux 2.6.24)</small></h6>
+        <p>Time spent running a virtual CPU for guest operating systems under the control of the Linux kernel.</p>
+
+        <h6>guest_nice <small>(since Linux 2.6.33)</small></h6>
+        <p>Time spent running a niced guest (virtual CPU for guest operating systems under the control of the Linux kernel).</p>
+      </MDBModalBody>
+      <MDBModalFooter>
+
+        <p class="mb-0 me-auto">
+          This help page comes from the Linux manual for proc:
+          <a href="#" @click="copyrightCollapse = !copyrightCollapse" aria-controls="copyrightCollapse" :aria-expanded="copyrightCollapse">Copyright</a>,
+          <a href="#" @click="licenseCollapse = !licenseCollapse" aria-controls="licenseCollapse" :aria-expanded="licenseCollapse">License</a>
+        </p>
+        <MDBBtn color="primary" @click="summaryHelpModal = false">Close</MDBBtn>
+
+        <MDBCollapse id="copyrightCollapse" v-model="copyrightCollapse" class="w-100">
+<pre class="mt-2 mb-0">
+Copyright (C) 1994, 1995 by Daniel Quinlan (quinlan@yggdrasil.com)
+and Copyright (C) 2002-2008,2017 Michael Kerrisk &lt;mtk.manpages@gmail.com&gt;
+with networking additions from Alan Cox (A.Cox@swansea.ac.uk)
+and scsi additions from Michael Neuffer (neuffer@mail.uni-mainz.de)
+and sysctl additions from Andries Brouwer (aeb@cwi.nl)
+and System V IPC (as well as various other) additions from
+Michael Kerrisk &lt;mtk.manpages@gmail.com&gt;
+</pre>
+        </MDBCollapse>
+
+        <MDBCollapse id="licenseCollapse" v-model="licenseCollapse" class="w-100">
+<pre class="mt-2 mb-0">
+This is free documentation; you can redistribute it and/or
+modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of
+the License, or (at your option) any later version.
+
+The GNU General Public License's references to "object code"
+and "executables" are to be interpreted as the output of any
+document formatting or typesetting system, including
+intermediate and printed output.
+
+This manual is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public
+License along with this manual; if not, see
+&lt;http://www.gnu.org/licenses/&gt;.
+</pre>
+        </MDBCollapse>
+
+      </MDBModalFooter>
+    </MDBModal>
+
+  </MDBRow>
+</template>
+
+<script>
+import {MDBBadge, MDBBtn, MDBCol, MDBModal, MDBModalBody, MDBModalFooter, MDBModalHeader, MDBModalTitle, MDBRow, MDBTable, MDBCollapse} from "mdb-vue-ui-kit";
+import {ref} from "vue";
+
+export default {
+  components: {
+    MDBRow,
+    MDBCol,
+    MDBTable,
+    MDBBadge,
+    MDBBtn,
+    MDBModal,
+    MDBModalHeader,
+    MDBModalTitle,
+    MDBModalBody,
+    MDBModalFooter,
+    MDBCollapse
+  },
+  watch: {
+    copyrightCollapse: function (value) {
+      if (value) {
+        setTimeout(() => document.getElementById("copyrightCollapse").scrollIntoView({behavior: 'smooth'}), 250);
+      }
+    },
+    licenseCollapse: function (value) {
+      if (value) {
+        setTimeout(() => document.getElementById("licenseCollapse").scrollIntoView({behavior: 'smooth'}), 250);
+      }
+    },
+  },
+  props: {
+    stats: {
+      type: Array
+    },
+    warningPoints: {
+      type: Object,
+      default: function () {
+        return {
+          user: function (value) {
+            return (value > 90) ? 'danger' : (value > 70) ? 'warning' : null
+          },
+          system: function (value) {
+            return (value > 20) ? 'danger' : (value > 10) ? 'warning' : null
+          },
+          idle: function (value) {
+            return (value < 10) ? 'danger' : (value < 30) ? 'warning' : null
+          },
+          iowait: function (value) {
+            return (value > 10) ? 'danger' : (value > 3) ? 'warning' : null
+          },
+          steal: function (value) {
+            return (value > 20) ? 'danger' : (value > 5) ? 'warning' : null
+          },
+          guest: function (value) {
+            return (value > 90) ? 'danger' : (value > 70) ? 'warning' : null
+          },
+        };
+      }
+    },
+    chartOptions: {
+      type: Object,
+      default: function () {
+        return {
+          labels: ['user', 'nice', 'system', 'idle', 'iowait', 'irq', 'softirq', 'steal', 'guest', 'guest_nice'],
+          colors: ['#00aa00', '#0000aa', '#aa0000', '#aaaaaa', '#ff5555', '#ffaa00', '#ff00ff', '#44dddd', '#00aaaa', '#00aaaa'],
+          animations: {enabled: false},
+        };
+      }
+    },
+    chartSeries: {
+      type: Array
+    }
+  },
+  data: function () {
+    return {
+      summaryHelpModal: ref(false),
+      copyrightCollapse: ref(false),
+      licenseCollapse: ref(false),
+    }
+  }
+}
+</script>
+
+<style scoped>
+.badge {
+  font-size: unset;
+}
+</style>
+
+<style>
+.modal-big .modal-dialog {
+  max-width: 1000px;
+}
+</style>

frontend/src/main.js

@@ -0,0 +1,13 @@
+import 'mdb-vue-ui-kit/css/mdb.min.css'
+import 'typeface-roboto/index.css'
+
+import {createApp} from 'vue'
+import App from './App.vue'
+
+import fontAwesome from "@/plugins/font-awesome";
+import VueApexCharts from "vue3-apexcharts";
+
+const app = createApp(App);
+app.use(fontAwesome);
+app.use(VueApexCharts);
+app.mount('#app')

frontend/src/plugins/font-awesome.js

@@ -0,0 +1,15 @@
+import {library} from '@fortawesome/fontawesome-svg-core'
+import {FontAwesomeIcon, FontAwesomeLayers} from '@fortawesome/vue-fontawesome'
+
+import {faGithub} from "@fortawesome/free-brands-svg-icons/faGithub";
+import {faExclamationTriangle} from "@fortawesome/free-solid-svg-icons/faExclamationTriangle";
+import {faQuestionCircle} from "@fortawesome/free-solid-svg-icons/faQuestionCircle";
+
+library.add(faGithub);
+library.add(faExclamationTriangle);
+library.add(faQuestionCircle);
+
+export default (app) => {
+    app.component('font-awesome-icon', FontAwesomeIcon);
+    app.component('font-awesome-layers', FontAwesomeLayers);
+}