Other comments mention Docker and Kubernetes which feels like overkill for what you describe. Especially Kubernetes. Check out bitbucket pipelines that trigger

Other comments mention Docker and Kubernetes which feels like overkill for what you describe. Especially Kubernetes. Check out bitbucket pipelines that trigger on a commit which should be able to build/run any tests, copy the code to your server, and then restart django. From there you can later build a docker image and copy it to run wherever, etc...