Previously, when rootCA was set, the trusted system root CAs were ignored. Now, allow for both being able to be configured and used
Signed-off-by: Daniel Haus <dhaus@redhat.com>
The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>