···

       
17
       
 
       
  nodeCfg = config.services.munin-node;

     

       
18
       
 
       
  cronCfg = config.services.munin-cron;

     

       
19
       
 
       


     

       
20
       
-
       
  muninPlugins = pkgs.stdenv.mkDerivation {

     

       
21
       
-
       
    name = "munin-available-plugins";

     

       
22
       
-
       
    buildCommand = ''

     

       
23
       
-
       
      mkdir -p $out

     

       
24
       
-
       


     

       
25
       
-
       
      cp --preserve=mode ${pkgs.munin}/lib/plugins/* $out/

     

       
26
       
-
       


     

       
27
       
-
       
      for file in $out/*; do

     

       
28
       
-
       
        case "$file" in

     

       
29
       
-
       
            */plugin.sh|*/plugins.history)

     

       
30
       
-
       
              chmod +x "$file"

     

       
31
       
-
       
              continue;;

     

       
32
       
-
       
        esac

     

       
33
       
-
       


     

       
34
       
-
       
        # read magic makers from the file

     

       
35
       
-
       
        family=$(sed -nr 's/.*#%#\s+family\s*=\s*(\S+)\s*/\1/p' $file)

     

       
36
       
-
       
        cap=$(sed -nr 's/.*#%#\s+capabilities\s*=\s*(.+)/\1/p' $file)

     

       
37
       
-
       


     

       
38
       
-
       
        wrapProgram $file \

     

       
39
       
-
       
          --set PATH "/run/wrappers/bin:/run/current-system/sw/bin" \

     

       
40
       
-
       
          --set MUNIN_LIBDIR "${pkgs.munin}/lib" \

     

       
41
       
-
       
          --set MUNIN_PLUGSTATE "/var/run/munin"

     

       
42
       
-
       


     

       
43
       
-
       
        # munin uses markers to tell munin-node-configure what a plugin can do

     

       
44
       
-
       
        echo "#%# family=$family" >> $file

     

       
45
       
-
       
        echo "#%# capabilities=$cap" >> $file

     

       
46
       
-
       
      done

     

       
47
       
-
       


     

       
48
       
-
       
      # NOTE: we disable disktstats because plugin seems to fail and it hangs html generation (100% CPU + memory leak)

     

       
49
       
-
       
      rm -f $out/diskstats

     

       
50
       
-
       
    '';

     

       
51
       
-
       
    buildInputs = [ pkgs.makeWrapper ];

     

       
52
       
-
       
  };

     

       
53
       
-
       


     

       
54
       
 
       
  muninConf = pkgs.writeText "munin.conf"

     

       
55
       
 
       
    ''

     

       
56
       
 
       
      dbdir     /var/lib/munin

     
···

       
83
       
 
       


     

       
84
       
 
       
      ${nodeCfg.extraConfig}

     

       
85
       
 
       
    '';

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
86
       
 
       
in

     

       
87
       
 
       


     

       
88
       
 
       
{

     
···

       
179
       
 
       
      description = "Munin Node";

     

       
180
       
 
       
      after = [ "network.target" ];

     

       
181
       
 
       
      wantedBy = [ "multi-user.target" ];

     

       
182
       
-
       
      path = [ pkgs.munin ];

     

       
0
       
 
       

     

       
183
       
 
       
      environment.MUNIN_PLUGSTATE = "/var/run/munin";

     

       
0
       
 
       

     

       
184
       
 
       
      preStart = ''

     

       
185
       
 
       
        echo "updating munin plugins..."

     

       
186
       
 
       


     

       
187
       
 
       
        mkdir -p /etc/munin/plugins

     

       
188
       
 
       
        rm -rf /etc/munin/plugins/*

     

       
189
       
-
       
        PATH="/run/wrappers/bin:/run/current-system/sw/bin" ${pkgs.munin}/sbin/munin-node-configure --shell --families contrib,auto,manual --config ${nodeConf} --libdir=${muninPlugins} --servicedir=/etc/munin/plugins 2>/dev/null | ${pkgs.bash}/bin/bash

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
190
       
 
       
      '';

     

       
191
       
 
       
      serviceConfig = {

     

       
192
       
-
       
        ExecStart = "${pkgs.munin}/sbin/munin-node --config ${nodeConf} --servicedir /etc/munin/plugins/";

     

       
193
       
 
       
      };

     

       
194
       
 
       
    };

     

       
195
       
 
       


     

···

       
17
       
 
       
  nodeCfg = config.services.munin-node;

     

       
18
       
 
       
  cronCfg = config.services.munin-cron;

     

       
19
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
20
       
 
       
  muninConf = pkgs.writeText "munin.conf"

     

       
21
       
 
       
    ''

     

       
22
       
 
       
      dbdir     /var/lib/munin

     
···

       
49
       
 
       


     

       
50
       
 
       
      ${nodeCfg.extraConfig}

     

       
51
       
 
       
    '';

     

       
52
       
+
       


     

       
53
       
+
       
  pluginConf = pkgs.writeText "munin-plugin-conf"

     

       
54
       
+
       
    ''

     

       
55
       
+
       
      [hddtemp_smartctl]

     

       
56
       
+
       
      user root

     

       
57
       
+
       
      group root

     

       
58
       
+
       


     

       
59
       
+
       
      [meminfo]

     

       
60
       
+
       
      user root

     

       
61
       
+
       
      group root

     

       
62
       
+
       


     

       
63
       
+
       
      [ipmi*]

     

       
64
       
+
       
      user root

     

       
65
       
+
       
      group root

     

       
66
       
+
       
    '';

     

       
67
       
+
       


     

       
68
       
+
       
  pluginConfDir = pkgs.stdenv.mkDerivation {

     

       
69
       
+
       
    name = "munin-plugin-conf.d";

     

       
70
       
+
       
    buildCommand = ''

     

       
71
       
+
       
      mkdir $out

     

       
72
       
+
       
      ln -s ${pluginConf} $out/nixos-config

     

       
73
       
+
       
    '';

     

       
74
       
+
       
  };

     

       
75
       
 
       
in

     

       
76
       
 
       


     

       
77
       
 
       
{

     
···

       
168
       
 
       
      description = "Munin Node";

     

       
169
       
 
       
      after = [ "network.target" ];

     

       
170
       
 
       
      wantedBy = [ "multi-user.target" ];

     

       
171
       
+
       
      path = with pkgs; [ munin smartmontools "/run/current-system/sw" "/run/wrappers" ];

     

       
172
       
+
       
      environment.MUNIN_LIBDIR = "${pkgs.munin}/lib";

     

       
173
       
 
       
      environment.MUNIN_PLUGSTATE = "/var/run/munin";

     

       
174
       
+
       
      environment.MUNIN_LOGDIR = "/var/log/munin";

     

       
175
       
 
       
      preStart = ''

     

       
176
       
 
       
        echo "updating munin plugins..."

     

       
177
       
 
       


     

       
178
       
 
       
        mkdir -p /etc/munin/plugins

     

       
179
       
 
       
        rm -rf /etc/munin/plugins/*

     

       
180
       
+
       
        ${pkgs.munin}/bin/munin-node-configure --suggest --shell --families contrib,auto,manual --config ${nodeConf} --libdir=${pkgs.munin}/lib/plugins --servicedir=/etc/munin/plugins --sconfdir=${pluginConfDir} 2>/dev/null | ${pkgs.bash}/bin/bash

     

       
181
       
+
       


     

       
182
       
+
       
        # NOTE: we disable disktstats because plugin seems to fail and it hangs html generation (100% CPU + memory leak)

     

       
183
       
+
       
        rm /etc/munin/plugins/diskstats || true

     

       
184
       
 
       
      '';

     

       
185
       
 
       
      serviceConfig = {

     

       
186
       
+
       
        ExecStart = "${pkgs.munin}/sbin/munin-node --config ${nodeConf} --servicedir /etc/munin/plugins/ --sconfdir=${pluginConfDir}";

     

       
187
       
 
       
      };

     

       
188
       
 
       
    };

     

       
189