What problem does it solve? Azure Functions and container apps hit a circular dependency at startup: configuration loading needs logging to report progress, but Application Insights logging needs configuration to initialize. This Skill guides installation and use of the azure-bootstrap Python library, which breaks that cycle with a 4-phase bootstrap and loads App Configuration and Key Vault values into the environment. ## Core Features & Use Cases - 4-Phase Bootstrap: Console logging first, telemetry from environment, configuration load, then telemetry upgrade once the connection string arrives via config. - Configuration Precedence: Environment variables always win over cache, App Configuration, Key Vault, and defaults; load_to_environ never overwrites existing keys. - Extras Matrix: Opt-in pip extras for FastAPI, Service Bus, Sumo Logic, database, email, HTTP, DocumentDB, governance, AKS, and an azbootstrap scaffold CLI. - Use Case: In an Azure Functions app, call initialize_application() at startup so every App Configuration and Key Vault value (including auto-resolved Key Vault references) is available via os.getenv without manual secret plumbing. ## Quick Start Ask the AI to show how to install azure-bootstrap with the fastapi extra and initialize an Azure Functions app using initialize_application and get_bootstrap_logger.
