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| | </pre> | | </pre> |
| | | | |
| − | edit '''/etc/default/snmpd''' : remove ''-u snmp'' and replace ''127.0.0.1'' with your ip (ie : 207.46.250.119), Full'''/etc/default/snmpd''' example: | + | edit '''/etc/default/snmpd''' : remove ''-u snmp'' and replace ''127.0.0.1'' with your ip, Full'''/etc/default/snmpd''' example: |
| | <pre> | | <pre> |
| | export MIBDIRS=/usr/share/snmp/mibs | | export MIBDIRS=/usr/share/snmp/mibs |
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| | </pre> | | </pre> |
| | | | |
| − | For Debian 4.x:
| + | Create user(my_username) and add new mib: |
| − | <pre>
| |
| − | export MIBDIRS=/usr/share/snmp/mibs
| |
| − | SNMPDRUN=yes
| |
| − | SNMPDOPTS='-Lsd -Lf /dev/null -I -smux -p /var/run/snmpd.pid'
| |
| − | TRAPDRUN=no
| |
| − | TRAPDOPTS='-Lsd -p /var/run/snmptrapd.pid'
| |
| − | </pre>
| |
| − | | |
| − | Create user(my_username) and add new mib. Password need a min. of 8 charactes. Username only characters: | |
| | <pre> | | <pre> |
| | /etc/init.d/snmpd stop | | /etc/init.d/snmpd stop |
| − | echo rouser my_username priv >> /etc/snmp/snmpd.conf | + | echo rouser my_username priv > /etc/snmp/snmpd.conf |
| | echo "extend .1.3.6.1.4.1.2021.51 beancounters /bin/cat /proc/user_beancounters" >> /etc/snmp/snmpd.conf | | echo "extend .1.3.6.1.4.1.2021.51 beancounters /bin/cat /proc/user_beancounters" >> /etc/snmp/snmpd.conf |
| | echo "extend .1.3.6.1.4.1.2021.52 vzquota /bin/cat /proc/vz/vzquota" >> /etc/snmp/snmpd.conf | | echo "extend .1.3.6.1.4.1.2021.52 vzquota /bin/cat /proc/vz/vzquota" >> /etc/snmp/snmpd.conf |
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| | /etc/init.d/snmpd start | | /etc/init.d/snmpd start |
| | </pre> | | </pre> |
| − |
| |
| − | (Note that the createUser command goes into a separate file. On Centos5 this file is located in /var/net-snmp/snmpd.conf. Make sure you stop snmpd before putting the createUser command there!).
| |
| | | | |
| | Testing snmp: | | Testing snmp: |
| | <pre> | | <pre> |
| − | snmpwalk -v 3 -u my_username -l authPriv -a MD5 -A my_password -x DES -X my_password $(hostname -i) | + | snmpwalk -v 3 -u my_usrname -l authPriv -a MD5 -A my_password -x DES -X my_password 207.46.250.119 |
| | </pre> | | </pre> |
| | | | |
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| | === nagios plugin === | | === nagios plugin === |
| | It is shell script: | | It is shell script: |
| − | <source lang="bash"> | + | <pre> |
| | # cat /usr/local/bin/check_snmp_openvz.sh | | # cat /usr/local/bin/check_snmp_openvz.sh |
| | #!/bin/bash | | #!/bin/bash |
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| | RET=0 | | RET=0 |
| | | | |
| − | DATA_TMP=`snmpwalk -v 3 -u $USER -l authPriv -a MD5 -A $PASS -x DES -X $PASS $HOST:$PORT .1.3.6.1.4.1.2021.51.4`
| + | DATA=`snmpwalk -v 3 -u $USER -l authPriv -a MD5 -A $PASS -x DES -X $PASS $HOST:$PORT .1.3.6.1.4.1.2021.51.4 \ |
| | + | | perl -ne '/"(.*)"/ ; print "$1\n" ;'` |
| | + | |
| | if [ "$?" != "0" ]; then | | if [ "$?" != "0" ]; then |
| | echo "Unknown snmp error" | | echo "Unknown snmp error" |
| | exit 1 | | exit 1 |
| | fi | | fi |
| − |
| |
| − | DATA=`echo "$DATA_TMP"| perl -ne '/"(.*)"/ ; print "$1\n" ;'`
| |
| | | | |
| | if [ -f $FILE ]; then | | if [ -f $FILE ]; then |
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| | ##################################################################################### | | ##################################################################################### |
| | | | |
| − | if [ $RET1 -gt $RET2 ]; then | + | if [ $RET1 -gt $RET2 ]; then |
| | RET=$RET1 | | RET=$RET1 |
| | else | | else |
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| | fi | | fi |
| | exit $RET | | exit $RET |
| − | </source> | + | </pre> |
| − | | |
| − | === check_vzquota Without SNMP ===
| |
| − | <source lang="bash">
| |
| − | #!/bin/bash
| |
| − | RET=0
| |
| − | DATA=`echo;sudo /usr/sbin/vzlist -1 2>/dev/null | xargs -I {} bash -c "echo {}:;sudo /usr/sbin/vzquota stat {} | sed 's/\*//g'"`
| |
| − | if [ -z "$DATA" ]; then
| |
| − | VPS_err=$(sudo /usr/sbin/vzlist -1 2>&1 1>/dev/null)
| |
| − | if [ -n "$VPS_err" ] && [ "$VPS_err" == "Container(s) not found" ]; then
| |
| − | echo "OK - $VPS_err";
| |
| − | exit 0;
| |
| − | else
| |
| − | if [ -n "$VPS_err" ]; then
| |
| − | echo "UNKNOWN - Error: $VPS_err";
| |
| − | else
| |
| − | echo "UNKNOWN - VZquota stats are not readable or empty. Maybe it is only readable for root and this script should be called by sudo.";
| |
| − | fi
| |
| − | exit 3;
| |
| − | fi
| |
| − | fi
| |
| − | | |
| − | echo "$DATA" | perl -n -e'
| |
| − | my $vid ;
| |
| − | my $ret=0 ;
| |
| − | my $crit="";
| |
| − | my $warn="";
| |
| − | my $ok="";
| |
| − | while(<STDIN>){
| |
| − | my %vid;
| |
| − | if ( /^(\d+):.*/ ){ $vid=$1; }
| |
| − | if ( /\D*(\d+):.*/ ){ $vid=$1; }
| |
| − | if ( /\s*(\S+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ){
| |
| − | $resource=$1 ;
| |
| − | $usage=$2 ;
| |
| − | $softlimit=$3 ;
| |
| − | $hardlimit=$4 ;
| |
| − | if ( $usage >= $hardlimit ){
| |
| − | $crit=$crit."VZquota limit exceeded on $vid: $resource usage->$usage, softlimit->$softlimit, hardlimit->$hardlimit, time->$time, expire->$expire " ;
| |
| − | $ret=2;
| |
| − | } elsif ( $usage >= $softlimit ){
| |
| − | $warn=$warn."VZquota limit exceeded on $vid: $resource usage->$usage, softlimit->$softlimit, hardlimit->$hardlimit, time->$time, expire->$expire " ;
| |
| − | $ret=1;
| |
| − | }
| |
| − | $ok=$ok."$vid:$resource $usage/$softlimit\n";
| |
| − | }
| |
| − | }
| |
| − | if ($ret == 0) {
| |
| − | print "OK - click on service-link for details...\n$ok";
| |
| − | } elsif ($ret == 1) {
| |
| − | print "WARNING - $warn\n";
| |
| − | } else {
| |
| − | print "CRITICAL - $crit\n";
| |
| − | }
| |
| − | exit($ret);
| |
| − | '
| |
| − | RET=$?
| |
| − | exit $RET
| |
| − | </source>
| |
| − | The script calls <code>/usr/sbin/vzlist</code> by sudo. When doing this it normally needs a password, which check_nrpe will not know. Because of this it is necessary that you append a line like the following to <code>/etc/sudors</code> (user name an path should be adapted to the right ones on your system):
| |
| − | nagios ALL=NOPASSWD: /usr/sbin/vzlist, /usr/sbin/vzquota
| |
| | | | |
| − | === check_ubc Without SNMP ===
| |
| − | <source lang="bash">
| |
| − | #!/bin/bash
| |
| − | # Servicestate description can have a http-link to the openvz-wiki
| |
| − | # in case that a ressource is warning/critical. To use it:
| |
| − | # 1. set "escape_html_tags=0" in nagios/etc/cgi.cfg
| |
| − | # 2. set "my $linked=1;" in the first perl lines in this script
| |
| − | #
| |
| − | export FILE=/tmp/check_ubc
| |
| − | RET=0
| |
| − | ubc_file='/proc/user_beancounters';
| |
| − | DATA='';
| |
| − | if [ -r $ubc_file ]; then
| |
| − | DATA=`cat $ubc_file`
| |
| − | fi
| |
| − | if [ -z "$DATA" ]; then
| |
| − | echo "UNKNOWN - $ubc_file is not readable or empty. Maybe it is only readable for root and this script should be called by sudo.";
| |
| − | exit 3;
| |
| − | fi
| |
| | | | |
| − | if [ -f $FILE ]; then
| |
| − | echo "$DATA" | perl -n -e'
| |
| − | use Data::Dumper;
| |
| − | my $linked=1; # 0:plain text output, 1:resourcename is a http-link to OpenVZ-wiki
| |
| − | my $file=$ENV{"FILE"};
| |
| − | my $ret=0 ;
| |
| − | my $vid ;
| |
| − | my $resource ;
| |
| − | my $held ;
| |
| − | my $maxheld ;
| |
| − | my $barrier ;
| |
| − | my $limit ;
| |
| − | my $failcnt ;
| |
| − | my %beancounters ;
| |
| − | my %beancounters_old ;
| |
| − | while(<STDIN>){
| |
| − | my %vmachine;
| |
| − | if ( /\D*(\d+):.*/ ){ $vid=$1; $beancounters{$vid}=\%vmachine ; }
| |
| − | if ( /^[\W\d]+([a-z]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ) {
| |
| − | $resource=$1 ;
| |
| − | $held=$2 ;
| |
| − | $maxheld=$3 ;
| |
| − | $barrier=$4 ;
| |
| − | $limit=$5 ;
| |
| − | $failcnt=$6 ;
| |
| − | ${beancounters{$vid}}{$resource}=[$held , $maxheld , $barrier , $limit ,$failcnt ];
| |
| − | if ( ($held > $barrier) && ($barrier != 0) ) {
| |
| − | print "WARNING: Limits on $vid: ".&url($resource,$linked)." held->$held , barrier->$barrier ( limit->$limit ) " ;
| |
| − | $ret=1;
| |
| − | }
| |
| − | #print "$vid:$resource $held Barrier:$barrier ";
| |
| − | }
| |
| − | }
| |
| − |
| |
| − | # read and parse old data
| |
| − | open(MYINPUTFILE, "<$file");
| |
| − | while(<MYINPUTFILE>){
| |
| − | my %vmachine;
| |
| − | if ( /\D*(\d+):.*/ ){ $vid=$1; $beancounters_old{$vid}=\%vmachine ; }
| |
| − | if ( /^[\W\d]+([a-z]+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+).*/ ) {
| |
| − | $resource=$1 ;
| |
| − | $held=$2 ;
| |
| − | $maxheld=$3 ;
| |
| − | $barrier=$4 ;
| |
| − | $limit=$5 ;
| |
| − | $failcnt=$6 ;
| |
| − | ${beancounters_old{$vid}}{$resource}=[$held , $maxheld , $barrier , $limit ,$failcnt ];
| |
| − | }
| |
| − | }
| |
| − |
| |
| − | foreach my $vmachine_id (keys %beancounters) {
| |
| − | foreach my $resource (keys %{$beancounters{$vmachine_id}} ) {
| |
| − | if ( defined($beancounters{$vmachine_id}{$resource}[4]) && defined($beancounters_old{$vmachine_id}{$resource}[4]) ){
| |
| − | my $failcnt=$beancounters{$vmachine_id}{$resource}[4];
| |
| − | my $failcnt_old=$beancounters_old{$vmachine_id}{$resource}[4];
| |
| − | my $held=$beancounters{$vmachine_id}{$resource}[0];
| |
| − | my $maxheld=$beancounters{$vmachine_id}{$resource}[1];
| |
| − | my $barrier=$beancounters{$vmachine_id}{$resource}[2];
| |
| − | my $limit=$beancounters{$vmachine_id}{$resource}[3];
| |
| − | if ( $failcnt_old < $failcnt ){
| |
| − | print "CRITICAL: Increased failcnt $vmachine_id: ".url($resource,$linked)." from $failcnt_old to $failcnt (held->$held , maxheld->$maxheld , barrier->$barrier , limit->$limit ) " ;
| |
| − | $ret=2;
| |
| − | }
| |
| − | #print "$vmachine_id: Old_Failcnt: $failcnt_old Failcnt: $failcnt \n";
| |
| − | }
| |
| − | }
| |
| − |
| |
| − | }
| |
| − | sub url {
| |
| − | my ($name,$with_link) = @_;
| |
| − | if ($with_link) {
| |
| − | return "<a target=\"_blank\" href=\"http://wiki.openvz.org/".$name."#".$name."\">$name</a>";
| |
| − | } else {
| |
| − | return $name;
| |
| − | }
| |
| − | }
| |
| − | if ($ret == 0 ) { print "OK: All bean counters fine \n" ; }
| |
| − | # print Dumper(%beancounters_old) ;
| |
| − | # print "\n";
| |
| − | exit($ret);
| |
| − | '
| |
| − |
| |
| − | RET=$?
| |
| − | fi
| |
| − |
| |
| − | echo "$DATA" > $FILE
| |
| − | exit $RET
| |
| − | </source>
| |
| − | The script needs to read the <code>/proc/user_beancounters</code> file. This is normally only readable for root. Because of this it is necessary that you append a line like the following to <code>/etc/sudors</code> (user name an path should be adapted to the right ones on your system):
| |
| − | nagios ALL=NOPASSWD: /usr/local/nagios/libexec/check_ubc
| |
| | | | |
| − | Also don't forget to consider this on your <code>nrpe.cfg</code>, so that you call the script with sudo:
| |
| − | command[check_ubc]=sudo /usr/local/nagios/libexec/check_ubc
| |
| | | | |
| − | [[Category: Monitoring]] | + | [[Category: HOWTO]] |
