Cherry-pick #17342 to 7.x: LIBBEAT: Enhancement replace_string processor for replacing strings values of fields. #18047
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…alues of fields. (elastic#17342) This PR is to add a replace processor. This processor takes in a field name, search string and replacement string. Searches field value for pattern and replaces it with replacement string. (cherry picked from commit 09fd4df)
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Cherry-pick of PR #17342 to 7.x branch. Original message:
What does this PR do?
This PR is to add a replace processor. This processor takes in a field name, search string and replacement string. Searches field value for pattern and replaces it with replacement string.
Why is it important?
This PR will help remove extra strings or add additional string to values
How to test this PR locally
Added unit test cases.
Use cases
While using auditbeat we get full path to file inside the pod on Kubernetes
"/run/containerd/io.containerd.runtime.v1.linux/k8s.io/${data.kubernetes.container.id}/rootfs/etc/runit/runsvdir/default/mcelog/supervise/pid.new"
This PR helps trim the beginning part of the string to get
/etc/runit/runsvdir/default/mcelog/supervise/pid.new"
Using config below