Having just stood up a grampsweb site, I have some feedback on the 1-Click solution.
First and foremost, it did NOT include docker and docker-compose. After standing up the 1-Click, logging in, and having firstrun.sh fail, I then manually added them, as well as net-tools and apache2 (Ubuntu flavor)
apt install apache2 net-tools docker docker-compose
apt update
apt full-upgrade
Since grampsweb has its own HTTP stack, I changed /opt/grampsweb/docker-compose.yml to use port 8000 instead of 80. [You could just as well have used 8080, 8888, 613, etc… Do not use 443, apache will use 80 and 443.]
At this point firstrun.sh would now run, but there were still issues, so I simply built my server manually. [See next post.]