def delete_cert(app, app_alias)
rest_app = find_app
rest_alias = rest_app.find_alias(app_alias)
if rest_client.api_version_negotiated >= 1.4
confirm_action "#{color("This is a non-reversible action! Your SSL certificate will be permanently deleted from application '#{app}'.", :yellow)}\n\nAre you sure you want to delete the SSL certificate?"
rest_alias.delete_certificate
success "SSL certificate successfully deleted."
0
else
raise RHC::Rest::SslCertificatesNotSupported, "The server does not support SSL certificates for custom aliases."
end
end