Getting Data In

Need help extracting a hostname from a source path

balbano
Contributor

Hey guys,

I'm a noob at props and transforms.

Trying to basically extract a hostname from a sourcepath.

Example:

/var/log/fms/host/blah/

I would like to extract "host" and use that as the hostname for the source log.

Here is how I am doing it so far:

[host-extract]
SOURCE_KEY = MetaData:Source
REGEX = (\/var\/log\/fms\/)([0-9a-zA-Z\.\-_/]+)?\/
DEST_KEY = MetaData:Host
FORMAT = $2

I also setup the following in props for this transform:

[FMS_LF]
TRANSFORMS-host = host-extract

However seems like its not working...

Any thoughts? Is my regex not right?

Any help you can provide would be great.

Thanks.

Brian

dwaddle
SplunkTrust
SplunkTrust

An even easier approach might be host_segment in inputs.conf. Using your example,

[monitor:///var/log/fms]
host_segment=4
sourcetype=fms_source_type
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

How Edge Processor's Durable Queue Works

Edge Processor sits in one of the most consequential places in any Splunk pipeline: between your data sources ...

Announcing Modern Navigation: A New Era of Splunk User Experience

We are excited to introduce the Modern Navigation feature in the Splunk Platform, available to both cloud and ...

Quantify Your Splunk Investment Impact: Introducing Savings Metrics to Value Insights

Building on the foundation established in our initial Value Insights releases, we are introducing the Savings ...