Copilot suggests:

    docker run --rm \
      -v /srv/mywebsite/certs:/acme.sh/certs \
      -v /srv/mywebsite/public/.well-known/acme- 
      challenge:/acme-challenge \
      neilpang/acme.sh --issue \
      --webroot /acme-challenge \
      -d yourdomain.com \
      --cert-file /acme.sh/certs/cert.pem \
      --key-file /acme.sh/certs/key.pem \
      --fullchain-file /acme.sh/certs/fullchain.pem

I don't know why it's suggesting `neilpang` though, as he no longer has a fork.