Munin:修订间差异

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== 設定 ==
== 設定 ==
=== 節點端 ===
節點端的設定只要把4949/tcp打開即可(預設值,在<code>/etc/munin/munin-node.conf</code>內可以修改)。


=== 伺服器端 ===
=== 伺服器端 ===

2021年4月25日 (日) 21:59的版本

Munin是一套Perl撰写的监控软体。

安装

Munin目前已经算成熟,更新幅度不会太大,加上Ubuntu内的版本都还算够新[1],可以直接安装Ubuntu内的版本:

sudo apt install -y munin; sudo apt clean

节点只需要安装munin-node:

sudo apt install -y munin-node; sudo apt clean

设定

节点端

节点端的设定只要把4949/tcp打开即可(预设值,在/etc/munin/munin-node.conf内可以修改)。

伺服器端

伺服器端的设定,先将Munin设定为CGI模式(事实上会是FastCGI模式),这需要修改/etc/munin/munin-conf.d/cgi.conf

graph_strategy cgi
html_strategy cgi
cgiurl_graph /munin-cgi/munin-cgi-graph

接著是修正Ubuntu下的档案权限[2]

sudo chown munin:adm /var/log/munin/munin-cgi-graph.log /var/log/munin/munin-cgi-html.log

另外是systemd的设定档,包含了/lib/systemd/system/munin-cgi-graph.service

#
[Unit]
Description=Munin CGI Graph FastCGI daemon
After=remote-fs.target

[Service]
ExecStart=/usr/bin/spawn-fcgi -s /var/run/munin/fastcgi-graph.sock -P /var/run/munin/fastcgi-graph.pid -U www-data -u munin -g munin /usr/lib/munin/cgi/munin-cgi-graph
PIDFile=/var/run/munin/fastcgi-graph.pid
Restart=always
RestartSec=1
Type=simple

[Install]
WantedBy=multi-user.target

以及/lib/systemd/system/munin-cgi-html.service

#
[Unit]
Description=Munin CGI HTML FastCGI daemon
After=remote-fs.target

[Service]
ExecStart=/usr/bin/spawn-fcgi -s /var/run/munin/fastcgi-html.sock -P /var/run/munin/fastcgi-html.pid -U www-data -u munin -g munin /usr/lib/munin/cgi/munin-cgi-html
PIDFile=/var/run/munin/fastcgi-html.pid
Restart=always
RestartSec=1
Type=simple

[Install]
WantedBy=multi-user.target

重读systemd设定,并且设成开机执行,然后跑起来:

sudo systemctl daemon-reload; sudo systemctl enable munin-cgi-graph.service; sudo systemctl enable munin-cgi-html.service; sudo service munin-cgi-graph.service start; sudo service munin-cgi-html.service start

然后是nginx的设定[2]

location ^~ /munin-cgi/munin-cgi-graph/ {
    fastcgi_split_path_info ^(/munin-cgi/munin-cgi-graph)(.*);
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_pass unix:/var/run/munin/fastcgi-graph.sock;
    include fastcgi_params;
}

location /munin/static/ {
    alias /etc/munin/static/;
}

location /munin/ {
    fastcgi_split_path_info ^(/munin)(.*);
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_pass unix:/var/run/munin/fastcgi-html.sock;
    include fastcgi_params;
}

让nginx重读设定档后应该就可以在https://www.example.com/munin/看到内容:

sudo pkill -1 nginx

参考资料

  1. Ubuntu – Package Search Results -- munin. [2021-04-26] (English). 
  2. 2.0 2.1 nginx configuration — Munin 2.0.44 documentation. [2021-04-26] (English). 

外部连结