my team and I are currently exploring using Azure static site blobs and CDN endpoints to host several web apps.
We have successfully deployed our static files to the blog storage and our entire test app loads on both the primary (name.abc.web.core.windows.net) and CDN (name.azureedge.net) endpoints. When it comes to mapping a custom subdomain via the “cdnverify” temporary step, however, I am unsuccessful.
I have very carefully followed and quintuple-checked all steps in the support doc "Tutorial: Add a custom domain to your Azure CDN endpoint" (here).
This is my current DNS config (via Namecheap).
When I skip the cdnverify step, e.g. assign the azureedge CNAME value directly to a host called “v2”, and add that as a custom domain in my Azure portal CDN blade, the subdomain begins loading the CDN endpoint and can even have a CDN-managed HTTPS cert deployed with no manual verification. A dig command to this host (v2.ourdomain.org) finds an expected response (view here).
Here's the rub, though. If I assign a CNAME host of “cdnverify.static” to “cdnverify.name.azureedge.net.” and add it as a custom domain in the portal’s CDN blade, however, this secondary subdomain never loads our endpoint, and cannot deploy an HTTPS cert. The Azure portal verified this host when added to the endpoint and a dig command to “cdnverify.static.ourdomain.org” shows this answer, which looks good.
A dig command to “static.ourdomain.org” returns no answer and a ping command says “unknown host”. This is expected since I’ve not created such a record yet, and so I am wondering how we’re meant to ensure this subdomain is verified as per the “Verify the custom domain” section in the above-mentioned doc.
It’s very important for us that the cdnverify host works and can be assigned a certificate before we permanently re-locate our domains as these apps are already in production. At this point, I am at a loss over what to try next. If possible, I’d love to know what step(s) I am missing, or what can further be done to diagnose the issue.
Many thanks to anybody who might have some advice!
