agents/check_mk_agent.macosx

   1 #!/bin/sh
   2 # Check_MK Agent for Mac OS/X
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27 # NOTE: This agent has beed adapted from the Check_MK linux agent.
  28
  29 # Remove locale settings to eliminate localized outputs where possible
  30 # Author: Christian Zigotzky <info@xenosoft.de>
  31 export LC_ALL=C
  32 unset LANG
  33
  34 export MK_LIBDIR="/to/be/changed"
  35 export MK_CONFDIR="/to/be/changed"
  36
  37 # Optionally set a tempdir for all subsequent calls
  38 #export TMPDIR=
  39
  40 # close standard input (for security reasons) and stderr
  41 if [ "$1" = -d ]
  42 then
  43     set -xv
  44 else
  45     exec <&- 2>/dev/null
  46 fi
  47
  48
  49 echo "<<<check_mk>>>"
  50 echo "Version: 1.6.0i1"
  51 echo "AgentOS: macosx"
  52 echo "Hostname: $(hostname)"
  53 echo "AgentDirectory: $MK_CONFDIR"
  54 echo "DataDirectory: $MK_VARDIR"
  55 echo "SpoolDirectory: $SPOOLDIR"
  56 echo "PluginsDirectory: $PLUGINSDIR"
  57 echo "LocalDirectory: $LOCALDIR"
  58
  59 osver="$(uname -r)"
  60
  61 echo '<<<df>>>'
  62 df -kPT hfs,apfs | sed 1d | \
  63 while read DEV REST; do
  64     TYPE=$(diskutil info "$DEV" | grep '^\s*Type' | cut -d: -f2 | tr -d '[:space:]')
  65     echo "$DEV $TYPE $REST"
  66 done
  67
  68 echo '<<<cpu>>>';
  69 echo `sysctl -n vm.loadavg | tr -d '{}'` `top -l 1 -n 1 | egrep ^Processes: |
  70 awk '{print $4"/"$2;}'` `echo 'echo $$' | bash` `sysctl -n hw.ncpu`
  71
  72 echo '<<<mem>>>'
  73 echo "MemTotal: $(echo $(sysctl -n hw.memsize)/1024 | bc) kB"
  74 echo "MemFree: $(echo "( $(vm_stat | grep speculative: | awk '{print $3}') + $(vm_stat | grep inactive: | awk '{print $3}') + $(vm_stat | grep free: | awk '{print $3}') ) * $(vm_stat | grep Mach | awk '{print $8}') / 1024" | bc) kB"
  75 echo "SwapTotal: 0 kB"
  76 echo "SwapFree: 0 kB"
  77 # FIXME: Just call vm_stat here, write a check plugin that uses that
  78 # navite output of vm_stat
  79
  80 echo '<<<uptime>>>';
  81 echo `date +%s` - `sysctl -n kern.boottime | cut -d' ' -f 4,7 | tr ',' '.' |
  82 tr -d ' '` | bc
  83 # FIXME: use sysctl -a for outputting *all* kernel values. Write
  84 # checks plugins with subchecks for parsing that output. Maybe reduce
  85 # the output size by grepping away totally useless parts
  86
  87 echo '<<<netctr>>>';
  88 date +'%s'; netstat -inb | egrep -v '(^Name|lo|plip)' | grep Link | awk '{
  89 print $1,$7,$5,$6,"0","0","0","0","0",$10,$8,$9,"0","0",$11,"0","0"; }'
  90 # FIXME: send netstat -inb plain, write proper check plugins for
  91 # clean parsing of the output
  92
  93 echo '<<<ps>>>'
  94 ps ax -o user,vsz,rss,pcpu,command | sed -e 1d -e 's/ *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) */(\1,\2,\3,\4) /'
  95
  96 # NTP seems to be enabled as a default
  97 if which ntpq >/dev/null; then
  98     echo '<<<ntp>>>'
  99     ntpq -np | sed -e 1,2d -e 's/^\(.\)/\1 /' -e 's/^ /%/'
 100 fi
 101
 102 # TCP Conn stats
 103 echo '<<<tcp_conn_stats>>>'
 104 netstat -ntfinet | awk ' /^tcp/ { c[$6]++; } END { for (x in c) { print x, c[x]; } }'
 105
 106
 107 # Fileinfo-Check: put patterns for files into /etc/check_mk/fileinfo.cfg
 108 if [ -r "$MK_CONFDIR/fileinfo.cfg" ]; then
 109     echo '<<<fileinfo:sep(124)>>>'
 110
 111     old_state=$(set +o)
 112     set +f
 113
 114     # let the shell do all the expansion, and pipe all files to perl
 115     (cat "$MK_CONFDIR/fileinfo.cfg" "$MK_CONFDIR/fileinfo.d/*" 2>/dev/null) | while read -r pattern; do
 116         case $pattern in
 117             /*) pattern=$(replace_datevariable "$pattern")
 118                 for f in $pattern; do echo $f; done
 119                 ;;
 120         esac
 121     done | perl -e  '
 122            print time."\n";
 123            print "[[[header]]]\n";
 124            print "name|status|size|time\n";
 125            print "[[[content]]]\n";
 126            while (<>) {
 127                chomp $_;
 128                if (-d $_) { next; }
 129                if (not -f $_) {
 130                    print "$_|missing\n";
 131                    next;
 132                }
 133                ($device, $inode, $mode, $nlink, $uid, $gid, $rdev, $size,
 134                 $atime, $mtime, $ctime, $blksize, $blocks) = stat($_);
 135                if ($!) {
 136                    print "$_|stat failed\n";
 137                } else {
 138                    print "$_|ok|$size|$mtime\n";
 139                }
 140            }'
 141     set +vx; eval "$old_state"
 142 fi
 143
 144
 145 if type tmutil >/dev/null
 146 then
 147     echo '<<<timemachine>>>'
 148     tmutil latestbackup 2>&1
 149 fi
 150
 151 ###############################
 152 # Things up for takers:
 153 ###############################
 154 # *OSX SW Raid status
 155 # *launchctl daemon status
 156 # *hw sensors, how to query them?
 157 # *OSX Server specific stuff, LDAP, etc...
 158 # *Rewrite cpu / ps check to be faster - takes >1s on my laptop
 159 # ioreg -l zeigt etliche interessante Inventurdaten
 160
 161
 162 # MK's Remote Plugin Executor
 163 if [ -e "/etc/mrpe.cfg" ]
 164 then
 165     echo '<<<mrpe>>>'
 166     grep -Ev '^[[:space:]]*($|#)' "/etc/mrpe.cfg" | \
 167     while read descr cmdline
 168     do
 169         PLUGIN=${cmdline%% *}
 170         OUTPUT=$(eval "$cmdline")
 171         echo "(${PLUGIN##*/}) $descr $? $OUTPUT" | tr \\n \\1
 172         echo
 173     done
 174 fi