check_json

Project Notes

# Description
Nagios, and compatible, plugin to obtain JSON data and perform comparisons/check against a specific key/subkey.

* Get timestamp and determine difference from current datetime
* Use regex and match/compare string data
* Check integers against a defined range

# Install
* `git clone https://gitlab.com/Jedimaster0/check_json.git`
* `cd check_json`
* `pip3 install -e .`
* Create a symbolic link to check_json.py in your `/usr/local/nagios/libexec`, or wherever your `$USER1$` path lives.

# Example
“`
python .check_json.py -u https://api.storj.io/contacts/15cc7dfe5443f6302fe65bf5503f7c34a1bdc53b -k lastSeen -td minutes -w 5 -c 10
CHECKJSON OK – timediff is 0 | timediff=0.0;5;10;0

python .check_json.py -u https://api.storj.io/contacts/15cc7dfe5443f6302fe65bf5503f7c34a1bdc53b -k address -m ‘^storj.mimir-tech.org$’
CHECKJSON OK – match is True | match=True;1:;1:

python .check_json.py -u https://api.storj.io/contacts/15cc7dfe5443f6302fe65bf5503f7c34a1bdc53b -k reputation -w ‘4800:’ -c ‘4500:’
CHECKJSON OK – intiger is 5000 | intiger=5000;4800:;4500:
“`

# Usage
“`
python .check_json.py –help
usage: check_json.py [-h] -u URL -k KEY [-f FUNCTION] [-R REGEX]
[-tf TIMEFORMAT] [-td TIMEDURATION] [-tz TIMEZONE]
[-m MATCH] [-w WARNING] [-c CRITICAL] [-v] [-D]

optional arguments:
-h, –help show this help message and exit
-u URL, –url URL
-k KEY, –key KEY json key(s) using “.” delimination.
-f FUNCTION, –function FUNCTION
Function comparison to be performed
(timediff|match|intiger). Defaults to “auto”
-R REGEX, –regex REGEX
regex pattern for pulling timestamp from JSON. Should
be the regex equivalent of timeformat. Defaults to
yyyy-mm-ddTHH:MM:SS
-tf TIMEFORMAT, –timeformat TIMEFORMAT
strptime formatted time pattern:
(https://docs.python.org/3/library/datetime.html
#strftime-and-strptime-behavior)
-td TIMEDURATION, –timeduration TIMEDURATION
Output format of timediff
(days|hours|minutes|seconds). Default is seconds.
-tz TIMEZONE, –timezone TIMEZONE
IANA time zones (https://en.wikipedia.org/wiki/List_of
_tz_database_time_zones#List). Default is Etc/UTC
-m MATCH, –match MATCH
string or regex pattern for comparison against the
JSON key value
-w WARNING, –warning WARNING
-c CRITICAL, –critical CRITICAL
-v, –verbose
-D, –debug
“`