How can I flush cache file on multi server

[kalumbum]

Hi, My website on multi server have using cache file on server, after deploy we just clear cache on opcache. We need to edit task clear cache "invoke 'magento:cache:flush'". But it's doesnt support us to add flush cache again. How can I add task with execute command linux or How can I flush cache file on multi server.

[PascalBrouwers]

You need to lookup how to add tasks in Capistrano. This repo is just another add-on, not the main program.
I suggest you google/research it.