Describe the solution you'd like
Hello,

it will be nice that files that are updated by entrypoint.sh file be written to a dedicated empty folder.
At least file /pgadmin4/config_distro.py.

For moment, we can't use an emptyDir or persistentVolumeClaim as there are many files in /pgadmin4 folder.

I will be a nice step to achieve a more secure pgadmin4 Deployment by being capable to set readOnlyRootFilesystem to true.

A clear and concise description of what you want to happen.

Describe alternatives you've considered
Generate my self the /pgadmin4/config_distro.py as ConfigMap or Secret and mount it but we should be able to disable generation.

Specify a custom path for /pgadmin4/config_distro.py with ENV var.

A clear and concise description of any alternative solutions or features you've considered.

Additional context

Add any other context or screenshots about the feature request here.