Hello,

What you could do here is build a new image on top of your current image add add the certificate there, for example, your Dockerfile would look something like this:

FROM ```your_current_image:latest```

COPY ./server.crt /home/```your_user```/.postgresql/server.crt
RUN chown postgres /home/```your_user```/.postgresql/server.crt

Then run docker build . and redeploy your new image.

That way our certificate would be available inside your container in your user’s home directory.

Another way to do that would be to have the certificate available on your host, create a docker volume and mount the volume to your running container.

Hope that this helps!
Regards,
Bobby