initial commit; version 22.5.12042
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scripts/observium_agent
Executable file
218
scripts/observium_agent
Executable file
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#!/bin/bash
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# _ _
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# ___ | |__ ___ ___ _ ____ _(_)_ _ _ __ ___
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# / _ \| '_ \/ __|/ _ \ '__\ \ / / | | | | '_ ` _ \
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# | (_) | |_) \__ \ __/ | \ V /| | |_| | | | | | |
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# \___/|_.__/|___/\___|_| \_/ |_|\__,_|_| |_| |_|
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# Linux Agent
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#
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# Copyright (C) Adam Armstrong 2013, (C) Observium Limited 2013-2017
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#
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# Based on Check_MK from Mathias Kettner <mk@mathias-kettner.de>
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#
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# check_mk is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation in version 2. check_mk is distributed
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# in the hope that it will be useful, but WITHOUT ANY WARRANTY; with-
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# out even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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# PARTICULAR PURPOSE. See the GNU General Public License for more de-
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# ails. You should have received a copy of the GNU General Public
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# License along with GNU Make; see the file COPYING. If not, write
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# to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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# Boston, MA 02110-1301 USA.
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# Remove locale settings to eliminate localized outputs where possible
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export LC_ALL=C
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unset LANG
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export AGENT_LIBDIR="/usr/lib/observium_agent"
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export AGENT_CONFDIR="/etc/observium"
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# Make sure, locally installed binaries are found
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PATH=$PATH:/usr/local/bin
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# All executables in SCRIPTSDIR and LOCALDIR will simply be executed
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# and their ouput appended to the output of the agent. Scripts define
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# their own sections and must output headers with '<<<' and '>>>'
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# LOCALDIR is included for backwards compatibility with agents < 1.1.x
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SCRIPTSDIR=$AGENT_LIBDIR/scripts-enabled
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LOCALDIR=$AGENT_LIBDIR/local
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# close standard input (for security reasons) and stderr
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if [ "$1" = -d ]
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then
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set -xv
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else
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exec <&- 2>/dev/null
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fi
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echo '<<<Observium>>>'
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echo Version: 1.1.0
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echo AgentOS: linux
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echo PluginsDirectory: $PLUGINSDIR
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echo LocalDirectory: $LOCALDIR
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echo AgentDirectory: $AGENT_CONFDIR
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# If we are called via xinetd, try to find only_from configuration
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if [ -n "$REMOTE_HOST" ]
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then
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echo -n 'OnlyFrom: '
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echo $(sed -n '/^service[[:space:]]*observium_agent/,/}/s/^[[:space:]]*only_from[[:space:]]*=[[:space:]]*\(.*\)/\1/p' /etc/xinetd.d/* | head -n1)
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fi
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# Show filesystems. -P Prevents wrapping long mount points
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# Hide NFS mounts to prevent hanging
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echo '<<<df>>>'
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df -PTlk -x smbfs -x tmpfs -x cifs -x iso9660 -x udf -x nfsv4 | sed 1d
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# VMWare shows its own filesystems with 'vdf'. Just one
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# problem: it outputs not 7 but only 6 columns
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if which vdf > /dev/null
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then
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vdf -P | grep ^/vmfs/volumes | sed 's/ / vmfs /'
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fi
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# Check NFS mounts by accessing them with stat -f (System
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# call statfs()). If this lasts more then 2 seconds we
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# consider it as hanging. We need waitmax.
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if type waitmax >/dev/null
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then
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STAT_VERSION=$(stat --version | head -1 | cut -d" " -f4)
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STAT_BROKE="5.3.0"
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echo '<<<nfsmounts>>>'
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sed -n '/ nfs /s/[^ ]* \([^ ]*\) .*/\1/p' < /proc/mounts |
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while read MP
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do
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if [ $STAT_VERSION != $STAT_BROKE ]; then
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waitmax -s 9 2 stat -f -c "$MP ok %b %f %a %s" "$MP" || \
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echo "$MP hanging 0 0 0 0"
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else
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waitmax -s 9 2 stat -f -c "$MP ok %b %f %a %s" "$MP" && \
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printf '\n'|| echo "$MP hanging 0 0 0 0"
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fi
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done
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fi
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# Check mount options. Filesystems may switch to 'ro' in case
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# of a read error.
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echo '<<<mounts>>>'
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grep ^/dev < /proc/mounts
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# processes including username, without kernel processes
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echo '<<<ps>>>'
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ps ax -o user,vsz,rss,pcpu,command --columns 10000 | sed -e 1d -e 's/ *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) *\([^ ]*\) */(\1,\2,\3,\4) /'
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# Memory Usage
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echo '<<<mem>>>'
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egrep -v '^Swap:|^Mem:|total:' < /proc/meminfo
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# Load and active processes.
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echo '<<<cpu>>>'
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echo "$(cat /proc/loadavg) $(grep -E '^CPU|^processor' < /proc/cpuinfo | wc -l)"
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# Uptime
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echo '<<<uptime>>>'
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cat /proc/uptime
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# Network interfaces (Link, Autoneg, Speed)
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# This requires ethtool
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if which ethtool > /dev/null
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then
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echo '<<<netif>>>'
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for eth in $(cat /proc/net/dev | sed -rn -e 's/[[:space:]]*//g' -e '/ *([^:]):.*/s//\1/p' | egrep -vx '(lo|sit.*)')
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do
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echo $eth $(ethtool $eth | egrep '(Speed|Duplex|Link detected|Auto-negotiation):' | cut -d: -f2 | sed 's/ *//g')
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done
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fi
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# New variant: Information about speed and state in one section
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echo '<<<lnx_if:sep(58)>>>'
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sed 1,2d /proc/net/dev
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if which ethtool > /dev/null
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then
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for eth in $(sed -e 1,2d < /proc/net/dev | cut -d':' -f1)
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do
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echo "[$eth]"
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ethtool $eth | egrep '(Speed|Duplex|Link detected|Auto-negotiation):'
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done
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fi
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# Number of TCP connections in the various states
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echo '<<<tcp_conn_stats>>>'
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netstat -nt | awk ' /^tcp/ { c[$6]++; } END { for (x in c) { print x, c[x]; } }'
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# Multipath devices.
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if which multipath >/dev/null ; then
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echo '<<<multipath>>>'
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multipath -l
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fi
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# Soft-RAID
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echo '<<<md>>>'
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cat /proc/mdstat
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# Disk performance counters
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echo '<<<diskstat>>>'
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date +%s
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egrep ' (x?[shv]d[a-z]*|cciss/c[0-9]+d[0-9]+) ' < /proc/diskstats
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# Kernel performance counters
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echo '<<<kernel>>>'
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date +%s
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cat /proc/vmstat /proc/stat
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# Network performance counters (Packets, collisions, etc)
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echo '<<<netctr>>>'
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# Exact timestamp because counters depend upon the time
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date +%s
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sed -e 1,2d -e 's/:/ /g' < /proc/net/dev
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if which vcbVmName > /dev/null 2>&1 ; then
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echo '<<<vmware_state>>>'
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vcbVmName -s any
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fi
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if which ntpq > /dev/null 2>&1 ; then
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echo '<<<ntp>>>'
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# remote heading, make first column space separated
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waitmax 2 ntpq -p | sed -e 1,2d -e 's/^\(.\)/\1 /' -e 's/^ /%/'
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fi
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# Postfix mailqueue monitoring
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#
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# Only handle mailq when postfix user is present. The mailq command is also
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# available when postfix is not installed. But it produces different outputs
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# which are not handled by the check at the moment. So try to filter out the
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# systems not using postfix by searching for the postfix user.a
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#
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# Cannot take the whole output. This could produce several MB of agent output
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# on blocking queues.
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# Only handle the last 6 lines (includes the summary line at the bottom and
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# the last message in the queue. The last message is not used at the moment
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# but it could be used to get the timestamp of the last message.
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if which mailq >/dev/null 2>&1 && getent passwd postfix >/dev/null 2>&1; then
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echo '<<<postfix_mailq>>>'
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mailq | tail -n 6
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fi
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# First run all scripts in $SCRIPTSDIR
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if cd $SCRIPTSDIR
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then
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for skript in $(ls|grep -v '~$')
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do
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if [ -x "$skript" ]; then
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./$skript
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fi
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done
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fi
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# Then, run all scripts directly in $LOCALDIR
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if cd $LOCALDIR
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then
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for skript in $(ls|grep -v '~$')
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do
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if [ -x "$skript" ] ; then
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./$skript
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fi
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done
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fi
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