That is definitely not the way to do it Nevil.
You can't just go in to the docker containers and install stuff manually.
On the next rebuild of the docker containers - all your changes will be gone.
This is how docker works and it is perfect to have everything auto installed and a clean sheet.
To have your SSL installed you should either do it in other dedicated docker containers for that or central on your server with SSH.
I already provided some links to possible ways to do it with Traefik. see:
Hope to get it more integrated in Wappler soon.