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