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LLM Apps in Production (RAG + Vector DB + Caching) · Lesson

Managing Configuration and Secrets in Deployment

Learn to externalize configuration and safely inject secrets like API keys into deployed LLM applications using environment variables, config maps, and secret managers.

Config Belongs Outside Code

The same LLM app image runs in dev, staging, and production. The only difference should be configuration, not the code. Hard-coding endpoints or keys forces a rebuild for every environment.

This is the core idea of config externalization.

Config vs Secrets

Two related but distinct concepts:

  • Config — non-sensitive settings: model name, temperature, log level
  • Secrets — sensitive values: API keys, DB passwords, tokens

Secrets need stricter handling and must never be logged.

All lessons in this course

  1. Containerizing LLM Applications with Docker
  2. Orchestration with Kubernetes for Scalability
  3. CI/CD for LLM Application Deployment
  4. Managing Configuration and Secrets in Deployment
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