how install Cloudflare origin SSL/TLS on OpenLiteSpeed

1. Go to Cloudflare console and follow SSL/TLS -> Origin Server -> Create certificate
Copypaste two .PEM files: 'Origin Certificate' and 'Private Key'
2. Go to /usr/local/lsws/conf/cert/ on your server and create 2 files:
- /privatekey.pem
- /certificate.pem
3. Go to OpenLiteSpeed WebAdmin CP and follow VirtualHost -> SSL and edit block "SSL Private Key & Cerificate":
Private Key File    /usr/local/lsws/conf/cert/privatekey.pem
Certificate File    /usr/local/lsws/conf/cert/certificate.pem
Save.
4. Go to the OpenLiteSpeed WebAdmin CP Listeners -> SSL and add new domain listener: domain.com, www.domain.com, *
Go to the SSL settings and put the same, that for VirtualHost.
Save.
5. Restart LiteSpeed Server (systemctl restart lsws)
6. Go to CloudFlare console and setup:
- SSl -> Overview and enable "Full Strict" mode.
- SSL -> Origin Server and enable "Authenticated Origin Pulls".

Profit.