Side by Side Diff: check_ssl_cert.sh
Issue 29792596:
#3298 - SSL monitoring script for icinga (Closed)
Patch Set: #3298 - SSL monitoring script for icinga
Created July 4, 2018, 2:33 p.m.
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| 1 #!/bin/sh | |
| 2 | |
| 3 # Icinga plugin that checks how many days are left | |
| 4 # until SSL certificate expires. | |
| 5 # Usage: | |
| 6 # $PLUGIN_DIR/check_ssl_cert.sh -H $HOST -P $PORT -c $CRITICAL -w $WARNING | |
| 7 | |
| 8 get_ssl_expiry_date() { | |
| 9 openssl s_client -connect "$1:$2" </dev/null 2>/dev/null \ | |
| 10 | openssl x509 -noout -enddate 2>/dev/null | |
| 11 } | |
| 12 | |
| 13 CURRENT_DATE=`date +%y%m%d` | |
| 14 HOST="$2" | |
| 15 PORT="$4" | |
| 16 CRITICAL="$6" | |
| 17 WARNING="$8" | |
| 18 STATE_OK=0 | |
| 19 STATE_WARNING=1 | |
| 20 STATE_CRITICAL=2 | |
| 21 STATE_UNKNOWN=3 | |
| 22 OUTPUT=`get_ssl_expiry_date "$HOST" "$PORT"` | |
| 23 | |
| 24 if [ -z "$OUTPUT" ] | |
| 25 then | |
| 26 echo "UNKNOWN - Could not connect to $HOST via port $PORT" | |
| 27 exit "$STATE_UNKNOWN" | |
| 28 fi | |
| 29 | |
| 30 DAY=`echo "$OUTPUT" | awk '{printf "02d", $2}'` | |
| 31 MONTH=`echo "$OUTPUT" | awk '{print $1}' | cut -c 10-` | |
| 32 YEAR=`echo "$OUTPUT" | awk '{print $4}'` | |
| 33 | |
| 34 case "$MONTH" in | |
| 35 | |
| 36 "Jan") | |
| 37 MONTH="01" | |
| 38 ;; | |
| 39 "Feb") | |
| 40 MONTH="02" | |
| 41 ;; | |
| 42 "Mar") | |
| 43 MONTH="03" | |
| 44 ;; | |
| 45 "Apr") | |
| 46 MONTH="04" | |
| 47 ;; | |
| 48 "May") | |
| 49 MONTH="05" | |
| 50 ;; | |
| 51 "Jun") | |
| 52 MONTH="06" | |
| 53 ;; | |
| 54 "Jul") | |
| 55 MONTH="07" | |
| 56 ;; | |
| 57 "Aug") | |
| 58 MONTH="08" | |
| 59 ;; | |
| 60 "Sep") | |
| 61 MONTH="09" | |
| 62 ;; | |
| 63 "Oct") | |
| 64 MONTH="10" | |
| 65 ;; | |
| 66 "Nov") | |
| 67 MONTH="11" | |
| 68 ;; | |
| 69 "Dec") | |
| 70 MONTH="12" | |
| 71 ;; | |
| 72 "*") | |
| 73 echo "An error occured" | |
| 74 exit 1 | |
| 75 ;; | |
| 76 esac | |
| 77 | |
| 78 EXPIRY_DATE_IN_SEC=`date -d "${YEAR}${MONTH}${DAY}" +%s` | |
| 79 CURRENT_DATE_IN_SEC=`date -d "$CURRENT_DATE" +%s` | |
| 80 DIFFERENCE=`expr \( "$EXPIRY_DATE_IN_SEC" - "$CURRENT_DATE_IN_SEC" \) / 86400` | |
| 81 | |
| 82 if [ "$DIFFERENCE" -le "$CRITICAL" ] | |
| 83 then | |
| 84 echo "CRITICAL - $HOST: SSL certificate has been expired!" | |
| 85 exit "$STATE_CRITICAL" | |
| 86 elif [ "$DIFFERENCE" -le "$WARNING" ] | |
| 87 then | |
| 88 echo "WARNING - $HOST: SSL certificate will be expired in $DIFFERENCE days!" | |
| 89 exit "$STATE_WARNING" | |
| 90 elif [ "$DIFFERENCE" -gt "$WARNING" ] | |
| 91 then | |
| 92 echo "OK - $HOST: SSL certificate will be expired in $DIFFERENCE days" | |
| 93 exit "$STATE_OK" | |
| 94 else | |
| 95 echo "UNKNOWN - $HOST: Could not retrieve data" | |
| 96 exit "$STATE_UNKNOWN" | |
| 97 fi | |
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