====== Munin - Node ======
  * http://munin-monitoring.org/wiki/MuninInstallationDarwin


===== Telepítés =====
  - Telepítsd fel a [[http://www.macports.org/install.php | MacPorts]]-ot és játszásdiból indítsd el a ''munin'' MacPorts-os telepítését, hogy legyen SVN kliens: <code bash>
port install munin +server
</code> //Le lehet állítani pár másodperc múlva//
  - Telepítsd fel az [[https://itunes.apple.com/en/app/xcode/id497799835?mt=12 | AppStore]]-ból az **Xcode** programot
  - Indítsd el az **Xcode** programot és telepítsd fel a **Command Line Tools**-t:
    - **Preferences** -> **Downloads**
    - Itt kattints a csomag melletti kis letöltés ikonra
  - Nyiss egy rendszergazdai terminált (''sudo -s'')
  - Felhasználó és csoport létrehozása: <code bash>
dscl . create /Groups/munin PrimaryGroupID 4949
dscl . create /Users/munin UniqueID 4949
dscl . create /Users/munin PrimaryGroupID 4949
dscl . create /Users/munin UserShell /bin/false
dscl . create /Users/munin NFSHomeDirectory /usr/local/munin/var/run/munin
dscl . create /Users/munin RealName Munin
dscl . create /Groups/munin GroupMembership munin
defaults write /Library/Preferences/com.apple.loginwindow HiddenUsersList -array-add munin
</code>
  - Takarítás: <code bash>
rm -rf /usr/src/munin
rm -rf /usr/local/munin
rm -rf /opt/munin
rm -rf /etc/opt/munin/
rm /Library/LaunchDaemons/org.munin-monitoring.munin-node.plist
</code>
  - Környezet kialakítása: <code bash>
export LANG=C
mkdir -p /usr/local/munin/var/run/munin
chown munin:munin /usr/local/munin/var/run/munin
</code>
  - Forráskód letöltése: <code bash>
mkdir -p /usr/src/munin
cd /usr/src/munin
svn checkout "svn://munin.projects.linpro.no/munin/trunk"
cd /usr/src/munin/trunk
</code>
  - Forrás átalakítása a Mac rendszerhez: <code bash Makefile.config>
...
# Default user to run the plugins as
PLUGINUSER := munin
...
</code>
  - Forráskódok forgatása: <code bash>
make install-common
make install-node
make install-node-plugins
make install
</code>
  - Pluginek bekapcsolása: <code>
/opt/munin/sbin/munin-node-configure --suggest --shell | sh

rm /etc/opt/munin/plugins/munin_stats
</code>
  - ''if_err_'' plugin javítása: <file diff >
--- /opt/munin/lib/plugins/if_err_ 2018-11-05 13:27:43.000000000 +0100
+++ /opt/munin/lib/plugins/if_err_ 2018-11-05 13:27:55.000000000 +0100
@@ -82,4 +82,4 @@
 
 # Name  Mtu   Network       Address            Ipkts Ierrs     Ibytes    Opkts Oerrs     Obytes  Coll
 # en1   1500  <Link#5>    00:17:f2:e8:f8:3c 11548082 38116  702690133 22938005   170 16013565627     0
-netstat -nib -I "$INTERFACE" | awk '$3 ~ /Link/ { print "down.value " $6 "\nup.value " $9 "\ncollisions.value " $11 }'
+netstat -nib -I "$INTERFACE" | awk '$3 ~ /Link/ { print "down.value " $6 "\nup.value " $9 '
</file>
  - ''dar_memusage'' plugin javítása: <file diff >
--- /opt/git-3th/munin-monitoring_contrib/plugins/system/dar_memusage.orig      2018-11-05 13:46:54.000000000 +0100
+++ /opt/git-3th/munin-monitoring_contrib/plugins/system/dar_memusage   2018-11-05 13:52:21.000000000 +0100
@@ -83,9 +83,9 @@
 for ( $i = 1;  ($i < $#top and $quit == 0); $i++ ) {
        if ( $top[$i] =~ /^PhysMem/ ) {
                $wired = $free = $used = $top[$i];
-               $wired =~ s/^.+?\((\d+)M wired.+$/$1/; chomp $wired; $wired = $wired * 1024 * 1024;
-               $free =~ s/^.+?, (\d+)([M|K]) unused.+$/$1/; chomp $free; $free = $free * 1024 * 1024; if ( $2 eq "K" ) { $free = $free / 1024; }
-               $used =~ s/^.+?: (\d+)([M|G]) used.+$/$1/; chomp $used; $used = $used * 1024 * 1024; if ( $2 eq "G" ) { $used = $used * 1024; }
+               $wired =~ s/^.+?\((\d+)([K|M|G]) wired.+$/$1/; chomp $wired; $wired = $wired * 1024 * 1024; if ( $2 eq "K" ) { $wired = $wired / 1024; }; if ( $2 eq "G" ) { $wired = $wired * 1024; }
+               $free =~ s/^.+?, (\d+)([K|M|G]) unused.+$/$1/; chomp $free; $free = $free * 1024 * 1024; if ( $2 eq "K" ) { $free = $free / 1024; }; if ( $2 eq "G" ) { $free = $free * 1024; }
+               $used =~ s/^.+?: (\d+)([K|M"G]) used.+$/$1/; chomp $used; $used = $used * 1024 * 1024; if ( $2 eq "K" ) { $used = $used / 1024; }; if ( $2 eq "G" ) { $used = $used * 1024; }
                print "wired.value " . $wired . "\n";
                print "free.value " . $free . "\n";
                print "used.value " . $used . "\n";
</file>
  - Munin config Mac-esítése: <code bash>
cd /etc/opt/munin/
</code> <file bash munin-node.conf>
log_level 4
log_file Sys::Syslog
pid_file /usr/local/munin/var/run/munin/munin-node.pid

#background 1
#setsid 1

user munin
group daemon
...
</file> <code bash>
cd /Library/LaunchDaemons
</code> <file bash org.munin-monitoring.munin-node.plist>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>EnvironmentVariables</key>
        <dict>
                <key>LANG</key>
                <string>en_GB.UTF-8</string>
                <key>LC_ALL</key>
                <string>en_GB.UTF-8</string>
        </dict>
        <key>Label</key>
        <string>org.munin-monitoring.munin-node</string>
        <key>ProgramArguments</key>
        <array>
                  <string>/opt/munin/sbin/munin-node</string>
        </array>
        <key>WorkingDirectory</key>
        <string>/usr/local/munin/var/run/munin</string>
        <key>RunAtLoad</key>
        <true/>
</dict>
</plist>
</file>
  - Daemon indítása: <code bash>
launchctl load org.munin-monitoring.munin-node.plist
</code>
  - Innentől pedig kövessük a [[tudasbazis:linux:munin|Linux-os munin-node]] beállítást!


===== Pluginek =====
==== Smartmontools ====
  - Telepítsd fel a binárist: <code bash>
port install smartmontools
</code>
  - Munin beállítása:  <code bash>
ln -s /opt/munin/lib/plugins/smart_ /etc/opt/munin/plugins/smart_disk0
</code> <file bash /etc/opt/munin/plugin-conf.d/munin-node>
[smart_disk0]
user root
env.smartpath /opt/local/sbin/smartctl
</file>
  - Daemon újraindítása: <code bash>
cd /Library/LaunchDaemons
launchctl unload org.munin-monitoring.munin-node.plist
launchctl load org.munin-monitoring.munin-node.plist
</code>


=== USB-s lemez ===
  * https://www.smartmontools.org/wiki/Supported_USB-Devices

Ebben az esetben a típust nekünk kell kézzel megadni a fenti linken elérhető táblázat alapján: <file bash /etc/opt/munin/plugin-conf.d/munin-node>
[smart_chieftec-usb-disk1]
env.smartargs -d sat -a
</file>
==== Darwin specifikus pluginek ====
  - A szükséges git repo klónozása: <file bash>
mkdir -p /opt/git-3th
git clone 'https://github.com/andras-tim/contrib.git' /opt/git-3th/munin-monitoring_contrib
</file>
  - Pluginek bekötése, beállítása: <file bash>
cd /opt/git-3th/munin-monitoring_contrib/plugins/system
ls dar_* |
    grep -v 'dar_uptime' | 
    while read a 
    do
        ln -s "/opt/git-3th/munin-monitoring_contrib/plugins/system/$a" /etc/opt/munin/plugins/
        "/etc/opt/munin/plugins/$a" autoconf yes
    done
</file>
  - Pluginek tesztelése: <file bash>
/opt/munin/sbin/munin-run dar_cpuusage
/opt/munin/sbin/munin-run dar_memusage
/opt/munin/sbin/munin-run dar_swap
/opt/munin/sbin/munin-run dar_vmstat
</file>
  - //munin-node// újraindítása: <file bash>
launchctl unload /Library/LaunchDaemons/org.munin-monitoring.munin-node.plist
launchctl load /Library/LaunchDaemons/org.munin-monitoring.munin-node.plist
</file>