I'm trying to use kiwi to build an image, and I'm specifying one of my own RPM
repositories which is accessed over SSL.

This RPM respository is correctly configured with a legitimate SSL certificate
signed by Let's Encrypt. verified by curl(1) and Firefox (green lock symbol).

This site is https://ops2.guidewaycare.com/ .. it is password protected, but no
matter, even viewing the error page shows that the SSL certificate is valid.

However, when kiwi runs, the build fails with this error:

  Download (curl) error for
'https://username@ops2.guidewaycare.com/repo/rpm/42.3/noarch/gwc-rpm-scripts-1.0.0.67.gfaa3f10-1.opensuse42.3.noarch.rpm':
  Error code: Curl error 60
  Error message: SSL certificate problem: unable to get local issuer
certificate

  Problem occurred during or after installation or removal of packages:
  Installation aborted by user
  Please see the above error message for a hint.

Please update kiwi with the latest SSL certificate authority roots including
Let's Encrypt. These are available here:

  https://letsencrypt.org/certificates/

Workaround: add "?ssl_verify=no" to the repository URL.