nagios: file-age: add min-size
+ well needed explanation...
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@ -8,6 +8,7 @@ RANGE_WARNING_AGE="7"
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RANGE_CRITICAL_AGE="30"
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RANGE_WARNING_FILES_NUMBER="1:"
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RANGE_CRITICAL_FILES_NUMBER="1:"
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MIN_SIZE="0c"
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FIND_BASEDIR="/"
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# Output
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@ -31,7 +32,7 @@ set -e
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usage() {
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cat <<EOF
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Usage :
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$0 [-w age_warning_limit] [-c age_critical_limit] [-W files_number_warning_range] [-C files_number_critical_range] -b find-basedir -f find-name-regexp [[-w...] -f find-name-regexp] ...
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$0 [-w age_warning_limit] [-W files_number_warning_range] [-c age_critical_limit] [-C files_number_critical_range] [-s min_size] -b find-basedir -f find-name-regexp [[-w...] -f find-name-regexp] ...
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Note: Since the file(s) are checked against the lastest ranges given, order
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of the arguments are important.
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@ -42,10 +43,20 @@ Default values:
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files_number_warning_range : $RANGE_WARNING_FILES_NUMBER
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files_number_critical_range : $RANGE_CRITICAL_FILES_NUMBER
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find-basedir: $FIND_BASEDIR
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min_size: $MIN_SIZE (c/k/M/G = bytes/kibibytes/mebibytes/gibibytes. Beware of 'find' roundup, cf. man page)
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The check is only done on the couple crit-crit and warn-warn.
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No combination of crit/warn is made (for example, critical number of
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files at age warning range).
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Little example :
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Let's say you want to check that backup files are recent enough. For example :
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- you expect between 1 and 3 files modified in the last 2 days, warning alert if not,
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- you expect between 2 and 20 files modified in the last 7 days, critical alert if not.
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It gives :
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$0 -W 1:3 -w 2 -C 2:20 -c 7 -b /var/backups -f '*.tar.gz'
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And since '-f' options are executed in sequence, you can combine several check in a single launch :
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$0 -w 2 -W 1:5 -c 7 -C 5:10 -s 1500M -b /var/backups/client1/ -f 'sauv_*.tar.gz' -W 5:50 -C 25:100 -s 2M -b /var/backups/client2/ -f 'sauv_mysql_*.sql.gz'
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EOF
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}
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@ -62,11 +73,15 @@ if ! which find >/dev/null 2>&1 ; then
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echo "UNKNOWN 'find' not found."
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exit 1
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fi
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if ! which tr >/dev/null 2>&1 ; then
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echo "UNKNOWN 'tr' not found (not mandatory, remove perfdata if you wish)."
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exit 1
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fi
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#
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# Gestion des paramètres
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#
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while getopts hw:c:W:C:b:f: f; do
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while getopts hw:c:W:C:s:b:f: f; do
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case "$f" in
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'h')
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usage
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@ -99,6 +114,10 @@ while getopts hw:c:W:C:b:f: f; do
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fi
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;;
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's')
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MIN_SIZE="$OPTARG"
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;;
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'b')
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# TODO : vérifier que le répertoire existe ?
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FIND_BASEDIR="$OPTARG"
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@ -109,16 +128,21 @@ while getopts hw:c:W:C:b:f: f; do
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# un buffer et de le traiter ensuite
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FIND_NAME_REGEXP="$OPTARG"
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# mémo : 'label'=value[UOM];[warn];[crit];[min];[max]
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#OUTPUT_PERFDATA=$( printf "%s'port%d'=%d;%s;%s;0;" \
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# "$( test -n "$OUTPUT_PERFDATA" && echo "$OUTPUT_PERFDATA " )" \
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# "$PORT_NUMBER" \
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# "$CPT" \
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# "$RANGE_WARNING" \
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# "$RANGE_CRITICAL" )
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FILES_NUMBER_AT_WARN_AGE="$( find "$FIND_BASEDIR" -name "$FIND_NAME_REGEXP" -type f \( -size "$MIN_SIZE" -or -size "+$MIN_SIZE" \) -mtime "-$RANGE_WARNING_AGE" -printf "a\n" | wc -l )"
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FILES_NUMBER_AT_CRIT_AGE="$( find "$FIND_BASEDIR" -name "$FIND_NAME_REGEXP" -type f \( -size "$MIN_SIZE" -or -size "+$MIN_SIZE" \) -mtime "-$RANGE_CRITICAL_AGE" -printf "a\n" | wc -l )"
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FILES_NUMBER_AT_WARN_AGE="$( find "$FIND_BASEDIR" -name "$FIND_NAME_REGEXP" -type f -mtime "-$RANGE_WARNING_AGE" -printf "a\n" | wc -l )"
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FILES_NUMBER_AT_CRIT_AGE="$( find "$FIND_BASEDIR" -name "$FIND_NAME_REGEXP" -type f -mtime "-$RANGE_CRITICAL_AGE" -printf "a\n" | wc -l )"
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# mémo : 'label'=value[UOM];[warn];[crit];[min];[max]
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OUTPUT_PERFDATA=$( printf "%s'warn%s'=%d;%s;;0;" \
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"$( test -n "$OUTPUT_PERFDATA" && echo "$OUTPUT_PERFDATA " )" \
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"$( echo "$FIND_BASEDIR:$FIND_NAME_REGEXP" | LANG=C tr -cd "a-zA-Z/_.-" )" \
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"$FILES_NUMBER_AT_WARN_AGE" \
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"$RANGE_WARNING_FILES_NUMBER" )
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#"$RANGE_CRITICAL_FILES_NUMBER" )
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OUTPUT_PERFDATA=$( printf "%s'crit%s'=%d;;%s;0;" \
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"$( test -n "$OUTPUT_PERFDATA" && echo "$OUTPUT_PERFDATA " )" \
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"$( echo "$FIND_BASEDIR:$FIND_NAME_REGEXP" | LANG=C tr -cd "a-zA-Z/_.-" )" \
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"$FILES_NUMBER_AT_CRIT_AGE" \
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"$RANGE_CRITICAL_FILES_NUMBER" ) #"$RANGE_WARNING_FILES_NUMBER" \
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if check_range "$FILES_NUMBER_AT_CRIT_AGE" "$RANGE_CRITICAL_FILES_NUMBER" ; then
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OUTPUT_EXIT_STATUS=2
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@ -153,8 +177,6 @@ case "$OUTPUT_EXIT_STATUS" in
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;;
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esac
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# (pas de perfdata dans ce script)
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#printf "|%s\n" "$OUTPUT_PERFDATA"
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printf "\n"
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# on supprime les retours à la ligne
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printf "|%s\n" "$OUTPUT_PERFDATA"
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exit $OUTPUT_EXIT_STATUS
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