As @slashzero@hakbox.social said, if you're using an additional nginx server, your docker nginx can't listen for port 80 or 443. Here's my host nginx reverse proxy's ssl section for reference:
server {
server_name kek.henlo.fi;
location / {
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
include proxy_params;
proxy_pass http://localhost:9001;
}
listen 443 ssl http2;
listen [::]:443 ssl http2;
ssl_certificate /etc/letsencrypt/live/kek.henlo.fi/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/kek.henlo.fi/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
Maybe you're missing some proxy headers, or the docker compose isn't forwarding the correct ports.
But it can definitely be something completely different.
Looks like a pleasant city to move around in. I hope my city (Turku, Finland) also takes these kinds of drastic measures. They have a few very narrow bicycle lanes on the roads running right next to the car traffic, but the center is otherwise cluttered with rough and narrow sidewalks.