SQL Server 2017 installation issue on Linux SUSE 12 with SP2

Hi,

I am getting following error while installing SQL Server 2017 on Linux SUSE 12 with SP2.

:/> sudo zypper addrepo -r https://packages.microsoft.com/config/sles/12/mssql-server-2017.repo

Download (curl) error for 'https://packages.microsoft.com/config/sles/12/mssql-server-2017.repo':
Error code: Curl error 60
Error message: SSL certificate problem: self signed certificate in certificate chain

Please suggest how to resolve this ?

Thanks,