I just realized that the NIX TA is being deployed to our forwarders via the deployment apps, to the indexers via the master apps and to the SHs via the SH apps. It was a surprise for me to realize that the TA is not being deployed to the deployment and deployer servers, the license master and the cluster master. And therefore, how can the TA be deployed to all Splunk servers?
Thank you @richgalloway you are helpful as always
I presume you want to install the TA on the DS, LM, CM, and SHCD so you can monitor the servers on which they run. If so, you would have to install the TA on each of those instances manually because they are not clients of a management instance.
Another option is to use a third-party software management utility to install the app on all Splunk instances.
One more option is also to connect other Splunk machines to connect as clients of the deployment server to deploy these Apps.
* This is something people follow as practice, I don't find it helpful as it creates so much confusion managing apps and upgrading them.
A good option for automation (ex. ansible) if you have it in place, or manual.