Getting Data In

transforms.conf

VijaySrrie
Builder

Hi,

How to write transforms.conf for the fields that are not present in metadata

For example, I need to write transforms for the field - asset_env

asset_env = PROD

Below transforms were not working.

[change_index_name]
SOURCE_KEY = field:asset_env
REGEX = ^asset_env::(\w+)
DEST_KEY = _MetaData:Index
FORMAT = index_$1
~
~

Labels (1)
0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @VijaySrrie,

let me understand: you want to create an index based on a condition (e.g. if host=host_prod, env=PROD otherwise is env=DEV), is it correct?

in this case you can create a calculated field [Settings -- Fields -- Calculated fields -- New calculated field] adding the rule for your sourcetype, e.g. for the above example

env=if(host=host_prod,"PROD","DEV")

 Ciao.

Giuseppe

0 Karma

VijaySrrie
Builder

Host = abcdpr,xyzpr,abcps,xyzps etc......

asset_env = PROD,PSUP,PSVT etc...

We have different different asset_env like asset_env = PROD, asset_env=PSVT, asset_env=PSUP likewise.

I will create index like (index_PROD, index_PSUP, index_PSVT)

Based on the transforms.conf, the logs based on  asset_env should go to respective index

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @VijaySrrie,

The easiest way is to manage the correct index addressingusing diferent inputs.conf for each host (you can manage them using a Deployment Server).

Otherwise you could override index on Indexers (of on Heavy Forwarders if present) based on the host value, something like this:

on props.conf

[host::host_PROD]
TRANSFORMS-override_index_PROD = override_index_PROD

[host::host_DEV]
TRANSFORMS-override_index_DEV = override_index_DEV

on transforms.conf

[override_index_PROD]
REGEX = .
DEST_KEY = _MetaData:Index
FORMAT = index_PROD

[override_index_DEV]
REGEX = .
DEST_KEY = _MetaData:Index
FORMAT = index_DEV

Ciao.

Giuseppe

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!

Automating Threat Operations and Threat Hunting with Recorded Future

APP DEVELOPER TECH TALK Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 ...

Keep the Learning Going with the New Best of .conf Hub

Hello Splunkers, With .conf26 getting closer, there’s already a lot of excitement building around this year’s ...

Splunk Community Badges!

  Hey everyone! Ready to earn some serious bragging rights in the community? Along with our existing badges ...