[OpenStack-Infra] Options for logstash of ansible tasks
Ian Wienand
iwienand at redhat.com
Wed Mar 28 00:17:05 UTC 2018
I wanted to query for a failing ansible task; specifically what would
appear in the console log as
2018-03-27 15:07:49.294630 |
2018-03-27 15:07:49.295143 | TASK [configure-unbound : Check for IPv6]
2018-03-27 15:07:49.368062 | primary | skipping: Conditional result was False
2018-03-27 15:07:49.400755 |
While I can do
message:"configure-unbound : Check for IPv6"
I want to correlate that with a result, looking also for the matching
skipping: Conditional result was False
as the result of the task. AFAICT, there is no way in kibana to
enforce a match on consecutive lines like this (as it has no concept
they are consecutive).
I considered a few things. We could conceivably group everything
between "TASK" and a blank " | " into a single entry with a multiline
filter. It was pointed out that this would make, for example, the
entire devstack log as a single entry, however.
The closest other thing I could find was "aggregate" [1]; but this
relies on having a unique task-id to group things together with.
Ansible doesn't give us this in the logs and AFAIK doesn't have a
concept of a uuid for tasks.
So I'm at a bit of a loss as to how we could effectively index ansible
tasks so we can determine the intermediate values or results of
individual tasks? Any ideas?
-i
[1] https://www.elastic.co/guide/en/logstash/current/plugins-filters-aggregate.html
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