Every time GIT push source code to Magento Cloud, it will show 'Service Temporarily Unavailable'

Question

Every time GIT push source code to Magento Cloud, it will show 'Service Temporarily Unavailable' I have googled found some solution that deletes the .maintenance.flag file in /var. But this action I need to do it after every GIT push action. is it has another method to solve this problem?

Service Temporarily Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.