How to write grock pattern for date([yyyy-MM-dd HH:mm:ss.SSS z] ) in logstash

Elastic Stack Logstash
1

Hi,
In my log4j error logs, the datetime is printed in below format, I was trying to write a pattern in grock to parse that, but not getting the proper result.

[yyyy-MM-dd HH:mm:ss.SSS z]
ex. [2018-01-04 15:00:01.361 +0000UTC]

How can I parse such date and send this date as date type value so that I can create the filters as daterange in kibana?

2

Have you tried using the grok constructor web site?

3

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