Spring Boot App Fails on Azure App Service
If your Spring Boot application fails to start on Azure App Service , don’t panic. This is one of the most common deployment issues developers face while moving from local to cloud. In this blog, we’ll cover: Why Spring Boot fails on Azure Common error messages Step-by-step fixes Best practices for production deployment đź“Ś Common Error Message on Azure Most developers see errors like: Application Error : The application failed to start. Container didn 't respond to HTTP pings on port: 8080. or Failed to start web server Port 8080 already in use 🔍 Why Spring Boot Fails on Azure App Service Azure App Service expects your application to: Run on the port provided by Azure (WEBSITES_PORT) Bind to 0.0.0.0 (not localhost) Start within the allowed startup time If your app: Uses hardcoded port 8080 Binds to localhost Fails due to missing environment variables Crashes because of DB connection issues Azure will shut it down. đź› ️ Fix 1: Configure Dynamic Port Azure injects a port via ...