We have a index pattern filebeat-7.10.2* and we have template for this. Now I want a template created automatically for index filebeat-8.6.0. Is it possible?
Yes, you just need to install Filebeat 8.6 and run it.
Once installed, you can run the setup
command which will install the index template for the 8.6.0 version
./filebeat setup --index-management
Or just run...
./filebeat setup
...if you want to install everything (dashboard, pipelines, ILM, templates, etc)