I added these lines in the config file

api {
    # Notice: 'host' is the api server (default port 8008), not the web server.
    api_server: 

    web_server: 

    files_server: 

}
....
 azure.storage {
        # max_connections: 2

         containers: [
             {
                 account_name: "account_name"
                 account_key: "***"
                  container_name: "container_name"
             }
         ]
    }