exclude folders before deploy from local !?

I want to deploy symfony4 app **from local(git) no github,**
and before deploy the app to my ovh ssh server , **exculde** "**_vendor_**" and "**_var_**" folders !
How can i setup my deploy.rb file ?
Thank's

Start by reading the deploy.rb configuration for the local Git deployment and the Capistrano Symfony deployment tasks. Determine how the OVH SSH deployment should exclude the vendor and var folders; done means the configuration is validated by a deployment that omits both folders.

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