Symfony Dcokerize for App Plattform like Digitalocean

Searching for a Docker Pro on Symfony that can improve my Script and get the best performance & build results on Digitalocean App Plattform. We are using Symfony 5 with outsourced Database and Redis Server insided in the Dockerfile (but i am not sure, maybe that will not work on App Platform) If you read my Post please: YES I READ i will delete and not Answer Automessages