Include www subdomain in clearnet TLS issuance.

Request apex and www from Let's Encrypt and serve both names in nginx.

deploy/scripts/issue-certs.sh

@@ -9,9 +9,9 @@ usage() {
     cat <<EOF
 Usage: $(basename "$0") --email you@example.com
 
-Obtain or renew Let's Encrypt certificates for CLEARNET_DOMAIN using the webroot
-challenge. Nginx must be running and serving /.well-known/acme-challenge/ from
-deploy/certbot/www.
+Obtain Let's Encrypt certificates for CLEARNET_DOMAIN and www.CLEARNET_DOMAIN using
+the webroot challenge. Nginx must be running and serving /.well-known/acme-challenge/
+from deploy/certbot/www.
 
 Environment is read from .env.prod (CLEARNET_DOMAIN).
 EOF
@@ -65,6 +65,7 @@ docker run --rm \
     --webroot \
     -w /var/www/certbot \
     -d "$CLEARNET_DOMAIN" \
+    -d "www.${CLEARNET_DOMAIN}" \
     --email "$CERTBOT_EMAIL" \
     --agree-tos \
     --non-interactive