Forum Discussion
Xtreme-Akarshan
Sep 12, 2025Copper Contributor
Azure container app updating revision Issue.
Hi Team, I am facing an issue with the container URL, Here is the scenario, I am using a web application with application URL, eg: https://xyz.com and we are using Application gateway with rewrite...
Sep 12, 2025
hi Xtreme-Akarshan​ This happens because Azure Container Apps replies with its system FQDN (*.azurecontainerapps.io) during revision swaps if only that hostname is bound. To avoid exposing it:
- In App Gateway HTTP settings, turn off "Pick host name from backend" and override with your custom domain.
- Add your custom domain + TLS cert in the Container App's Custom Domains blade.
- Optionally, use a rewrite rule to enforce your vanity domain in responses.
With these settings, your users will always see xyz.com instead of the container app URL during revision updates.