Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
App Service instance is completely non-functional.
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Dilip Mistry
0
Reputation points
Our reserved App Service instance is completely non-functional. The web app won’t start at all. Even minimal test containers fail with 1800s timeout.
Summary
My Azure App Service on a reserved instance (Premium0V3) has completely stopped working. Even the simplest Node.js container fails to start, timing out after exactly 1800 seconds. The same Docker images work perfectly locally.
What’s happening:
All container deployments fail with “Site startup probe failed after 1800 seconds” Container starts successfully (logs show “Container is running”) PM2 launches (logs show “PM2 log: Launching in no daemon mode”) Application never responds to health probes After exactly 30 minutes, Azure kills the container Instance status shows “Unknown” or “Stopped” with error: “ContainerTimeout”
Azure App Service
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Anonymous2026-01-09T10:35:21.44+00:00 Hi @Dilip Mistry
This could be a platform issue. Please share a few details in a private message so we can look into it further.
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Aditya N 3,890 Reputation points Microsoft External Staff Moderator2026-01-09T10:35:58.98+00:00 Hello @Dilip Mistry
Thank you for reaching out Microsoft Q&A.
Could you check if your container app is responding for HTTP request?
Could you please check the logs and provide us the log information in private message.
Thanks,
Aditya
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