[collector] Only add service check fields if non-null #3487
+29
−6
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What does this PR do?
Avoids
null
values on service check fields.Motivation
The
api/v1/check_run
endpoint doesn't accept payloads with amessage
value ofnull
, so avoid that. #3446 was not working because of this.Do the same thing on the
tags
andhostname
fields as it makes sense to be consistent.cc @remh