Production ready Docker image for Kubernetes

[OlafRadicke]

Hi, the Docker image is currently not production ready on Kubernetes. From my point of view, the following would have to be adapted:

1. The image must be rootless
2. Only one process may run in the inage
3. The initialization should be outsourced to init container (instead of entrypoint-script)
4. The location where the application is located should be separated from the configurations and also from other dynamic files.
5. Friendica should already be installed IN the IMAGE and not be downloaded at runtime. This is the only way to check which version is being used. This in turn is the prerequisite for reproducibility. This in turn is required for a controlled rollback.

I already have experience with writing Helm charts and Docker images. But I don't know PHP and Friendica well enough to know if I would need help.

Is there a general interest in supporting Friendica for Kubernetes?