docker-magento/compose/bin/setup-ssl

#!/bin/bash
[ -z "$1" ] && echo "Please specify a domain (ex. mydomain.test)" && exit

# Generate a new local CA "/root/.local/share/mkcert"
docker-compose exec -T -u root app mkcert -install

# Read the CA install for requested hostname
if ! docker-compose exec -T -u root app cat /root/.local/share/mkcert/rootCA.pem | grep -q 'BEGIN CERTIFICATE'; then
  bin/setup-ssl-ca
fi

# Generate the certificate for the specified domain
docker-compose exec -T -u root app mkcert -key-file nginx.key -cert-file nginx.crt "$@"
echo "Moving key and cert to /etc/nginx/certs/..."
docker-compose exec -T -u root app chown app:app nginx.key nginx.crt
docker-compose exec -T -u root app mv nginx.key nginx.crt /etc/nginx/certs/

# Restart nginx to apply the updates
echo "Restarting containers to apply updates..."
bin/restart