JSON Parsing and saving

[vinothsethuram]

Can check_http plugin read a file?

usr/local/nagios/libexec/check_http -H api.b.com -u 'https://a.b.com/v1/10001/identity?client_id=[b]<data from file >[/b] -j POST -S -T 'application/json' -v

[tmcdonald]

Technically speaking everything check_http reads is a file. If you want it to check for a specific file it should work just the same. However if that file is served up as a redirect, you will need to tack on '-f follow'

[vinothsethuram]

Here is my scenario.

For every 15 min , file A will be updated with new token. I need to access the File A to take the token and then I need use that token as post data . i.e need to assign the retrieved data to -P parameter. So, Is there any possibility to assign the file data to parameter -P in check_http plugin

[sreinhardt]

No it will not directly read the file. You could use a script to read the file as an environment variable and submit that as your post data, or use the same script to read the file and redirect the output into the -P flag.

[vinothsethuram]

Thanks for the suggestion. I wrote shell script and resolved the issue. Is there anyway to execute the service commands sequentially. I want to predefine the order of execution.

[abrist]

Not really. You could have one active check that starts the chain. Each step of the chain submits a passive check for the service for that step. This logic would all be handled by your wrapper script.

[vinothsethuram]

Thank you.

Another strange behavior.. Below command is working fine if I execute in command line

Code: Select all

 /usr/local/nagios/libexec/check_http -H a.s.com -u 'https://a.s.com/v1/1/mem/recove/Address?id=Wua' -T 'application/json' -j PUT -S -P '{"email1":"[email protected]"}' -k Token:`/usr/local/Scripts/getTokens.sh && (cat /tmp/getToken.txt|grep "Token" | cut -d: -f2  |tr -d '"' | tr -d ',' | sed -e 's/^[ \t]*//')` -k Token2:`cat /tmp/getToken.txt|grep "Token2" | cut -d: -f2  |tr -d '"' | tr -d ',' | sed -e 's/^[ \t]*//'` -v -w 7.5  -c 10

If use the same one inside command configuration file as shown below, then "Token"value is not assigned, but ''Token2" value is assigned. Any syntax error for "Token".

Code: Select all

define command {
  command_name RESET PASSWORD BY EMAIL

  command_line /usr/local/nagios/libexec/check_http -H a.s.com -u 'https://a.s.com/v1/1/mem/recove/Address?id=Wua' -T 'application/json' -j PUT -S -P '{"email1":"[email protected]"}' -k Token:`/usr/local/Scripts/getTokens.sh && (cat /tmp/getToken.txt|grep "Token" | cut -d: -f2  |tr -d '"' | tr -d ',' | sed -e 's/^[ \t]*//')` -k Token2:`cat /tmp/getToken.txt|grep "Token2" | cut -d: -f2  |tr -d '"' | tr -d ',' | sed -e 's/^[ \t]*//'` -v -w 7.5  -c 10
}

[sreinhardt]

I don't believe you can use | or other redirects with nagios commands, they are considered illegal characters. You should be doing this within a bash script and calling that with your command definition.

[vinothsethuram]

| works fine for 'Token2' but not for 'Token1'

[tmcdonald]

vino, are all these threads related to the same issue of checking a website?

script execution
commands definition

If they are related I am going to merge them into this thread to keep everything in one place.