Handle upcoming new CDN

[mcalmer]

What does this PR change?

We discuss to switch the CDN and this require a little code changes

GUI diff

No difference.

• DONE

Documentation

• https://github.com/SUSE/spacewalk/issues/25961

• DONE

Test coverage

• No tests: manual

• DONE

Links

Issue: https://github.com/SUSE/spacewalk/issues/25954
Port(s): TBD

• DONE

Changelogs

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[github-actions]

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[github-actions]

Suggested tests to cover this Pull Request

• proxy_cobbler_pxeboot
• srv_monitoring
• srv_rename_hostname
• proxy_branch_network
• allcli_sanity
• srv_sync_channels
• srv_menu
• srv_first_settings
• srv_task_status_engine
• srv_sync_products
• srv_enable_sync_products

[digitaltom]

Is there a way to avoid the hardcoding of SUSE CDN urls and parameter names? This limits how we can adjust the setup in the future.

[mcalmer]

Is there a way to avoid the hardcoding of SUSE CDN urls and parameter names? This limits how we can adjust the setup in the future.

We need to distinguish between SUSE CDN and other CDNs like Nvidia, Ubuntu, Centos, IBM, RedHat, etc.
Can we agree that SCC only report repository URLs for SUSE CDN on domain .suse.com than we can check only for the domain.
Or SCC need to provide a flag which say "onSUSECDN: true" or something like that.