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<article itemscope itemtype="http://schema.org/Article"><div class="article__header"><header><h1 style="color:Tomato;">Glances outil de surveillance en temps réel des performances pour les systèmes d'exploitation basés sur Linux</h1></header></div><meta itemprop="headline" content="Glances outil de surveillance en temps réel des performances pour les systèmes d'exploitation basés sur Linux"><div class="article__info clearfix"><ul class="left-col menu"><li>
2024-11-08 14:10:33 +01:00
<a class="button button--secondary button--pill button--sm" style="color:#00FFFF" href="/archive.html?tag=outils">outils</a>
2024-10-31 20:18:37 +01:00
</li></ul><ul class="right-col menu"><li>
<i class="far fa-calendar-alt"></i>&nbsp;<span title="Création" style="color:#FF00FF">23&nbsp;sept.&nbsp;2021</span></li></ul></div><meta itemprop="datePublished" content="2021-09-23T00:00:00+02:00">
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<div class="article__content" itemprop="articleBody"><details>
<summary><b>Afficher/cacher Sommaire</b></summary>
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</details><h3 id="monitoring">Monitoring</h3>
<p><a href="https://github.com/nicolargo/glances">Glances - An eye on your system</a><br />
<em>Glances est un outil de surveillance multiplateforme qui vise à présenter une grande quantité dinformations de surveillance par le biais dune interface basée sur curses ou sur le Web. Linformation sadapte dynamiquement en fonction de la taille de linterface utilisateur.<br />
Il peut également fonctionner en mode client/serveur. La surveillance à distance peut se faire via un terminal, une interface Web ou une API (XML-RPC et RESTful). Les statistiques peuvent également être exportées vers des fichiers ou des bases de données temps/valeur externes.<br />
Glances est écrit en Python et utilise des bibliothèques pour récupérer les informations de votre système. Il est basé sur une architecture ouverte où les développeurs peuvent ajouter de nouveaux plugins ou modules dexportation.</em></p>
<p><strong>Script dinstallation automatique de Glances</strong><br />
Pour installer les deux dépendances et la dernière version de Glances prête pour la production (aka branche master), il suffit dentrer la ligne de commande suivante :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>curl -L https://bit.ly/glances | /bin/bash
</code></pre></div></div>
<p>Si parefeu, ouvrir un port découte, exemple avec UFW</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo ufw allow 55055/tcp # glances
</code></pre></div></div>
<p><strong>Utilisation</strong><br />
Pour le mode autonome</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>glances
</code></pre></div></div>
<p>Pour le mode serveur Web</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>glances -w
</code></pre></div></div>
<p>et entrez lURL http://<ip>:61208 dans votre navigateur Web</ip></p>
<p>Pour le mode client/serveur</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>glances -s -p 55055 # côté serveur
glances -c &lt;ip&gt;:55055 # côté client.
</code></pre></div></div>
<p>Vous pouvez également détecter et afficher tous les serveurs Glances disponibles sur votre réseau ou définis dans le fichier de configuration :</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>glances --browser
</code></pre></div></div>
<p>Vous pouvez également afficher les statistiques brutes sur stdout</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>glances --stdout cpu.user,mem.used,load
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>cpu.user : 30.7
mem.used : 3278204928
load : {'cpucore' : 4, 'min1' : 0.21, 'min5' : 0.4, 'min15' : 0.27}
cpu.user : 3.4
mem.utilisé : 3275251712
load : {'cpucore' : 4, 'min1' : 0.19, 'min5' : 0.39, 'min15' : 0.27}
...
</code></pre></div></div>
<p>ou dans un format CSV grâce à loption stdout-csv</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>glances --stdout-csv now,cpu.user,mem.used,load
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>now,cpu.user,mem.used,load.cpucore,load.min1,load.min5,load.min15
2018-12-08 22:04:20 CEST,7.3,5948149760,4,1.04,0.99,1.04
2018-12-08 22:04:23 CEST,5.4,5949136896,4,1.04,0.99,1.04
...
</code></pre></div></div>
<p><strong>Créer un service pour lancer le serveur web glances</strong></p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo nano /etc/systemd/system/glancesweb.service
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>[Unit]
Description=outil de surveillance glances
[Service]
Type=simple
ExecStart=/usr/local/bin/glances -w
[Install]
WantedBy=multi-user.target
</code></pre></div></div>
<p>Démarrer et activer le service</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>sudo systemctl start glancesweb.service &amp;&amp; sudo systemctl enable glancesweb.service
</code></pre></div></div>
<p>Status</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>systemctl status glancesweb.service
</code></pre></div></div>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>● glancesweb.service - outil de surveillance glances
Loaded: loaded (/etc/systemd/system/glancesweb.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2021-09-23 13:15:12 CEST; 9s ago
Main PID: 3755 (glances)
Tasks: 1 (limit: 2359)
Memory: 27.3M
CGroup: /system.slice/glancesweb.service
└─3755 /usr/bin/python /usr/local/bin/glances -w
sept. 23 13:15:12 debsrv systemd[1]: Started outil de surveillance glances.
</code></pre></div></div>
<p><strong>Proxy Nginx</strong></p>
<p>Créer un proxy pour accès internet, exmple avec domaine <strong>glances.rnmkcy.eu</strong> et certificats<br />
Fichier de configuration nginx <code class="language-plaintext highlighter-rouge">glances.rnmkcy.eu.conf</code></p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>server {
listen 80;
listen [::]:80;
server_name glances.rnmkcy.eu;
return 301 https://$host$request_uri;
}
server {
#listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name glances.rnmkcy.eu;
ssl_certificate /etc/ssl/private/rnmkcy.eu-fullchain.pem;
ssl_certificate_key /etc/ssl/private/rnmkcy.eu-key.pem;
# TLS 1.3 only
ssl_protocols TLSv1.3;
ssl_prefer_server_ciphers off;
# HSTS (ngx_http_headers_module is required) (63072000 seconds)
add_header Strict-Transport-Security "max-age=63072000" always;
location / {
proxy_pass http://127.0.0.1:61208;
}
# OCSP stapling
ssl_stapling on;
ssl_stapling_verify on;
# verify chain of trust of OCSP response using Root CA and Intermediate certs
ssl_trusted_certificate /etc/ssl/private/rnmkcy.eu-fullchain.pem;
# replace with the IP address of your resolver
resolver 1.1.1.1;
}
</code></pre></div></div>
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