Install bitbucket private repositories dependencies to run a rails project using azure Pipeline

Hi, 

I'm trying to deploy a ruby on Rails project to an Azure App service using Azure Pipeline.

My project uses a bitbucket private repositories such as dependencies.

When executing this command from the pipeline : Bundle install , I got this error :

In my Gemfile : I call the dependency  :

gem '***********', git: 'Email address removed:**********/*********.git', branch: 'master

 How can I access to privates bitbucket repos from azure pipeline to install all project dependencies ?

Thanks a lot !