Stood up a permanent self-renewing Let's Encrypt pipeline on the RUVDS
IIS host, replacing the manual traefik acme.json -> PFX import and
closing the 2026-07-22 cert-expiry deadline (new 25-SAN cert valid to
2026-09-03, SYSTEM scheduled task renews 55 days before expiry).
Key obstacle: the MoreThenCms OWIN catch-all (owin:HandleAllRequests)
swallowed /.well-known/acme-challenge/. Solved by carving the challenge
path into a separate IIS application in a No-Managed-Code app pool, plus
patching win-acme's Web_Config.xml template to remove the inherited Owin
handler. Staging + prod validation green for all 25 hostnames; live TLS
smoke confirms the new cert is served (incl degraded maljarka/rimiz).
- scripts/iis-migration-to-ruvds/03-ruvds-winacme.ps1 (idempotent setup)
- scripts/iis-migration-to-ruvds/winacme-Web_Config.xml (patched template)
- .wiki/concepts/winacme-iis-owin-catchall-http01.md (recipe + gotchas)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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