How to redirect to https only for a specific domain?

Question

htaccess

Tell me, there is a rule for redirecting from http to https. but because CMS system is used, then several domains are specified and directed to one folder. And not everyone is certified. And everyone is moving.
How can I make this rule work only for a specific domain?

RewriteEngine On
RewriteCond %{HTTP:X-HTTPS} !1
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]

Answer 1

It seems like it should work:

RewriteEngine On
RewriteCond %{HTTP:X-HTTPS} !1
RewriteCond %{HTTP_HOST} ^cms1.domain.ru$
RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]