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learnhouse/ISOLATION_IMPROVEMENTS.md
WhiteX d32389a8ef Add LearnHouse Deployment Isolation Toolkit and debugging tools 
- Introduced comprehensive documentation for diagnosing and fixing deployment isolation issues between DEV and LIVE instances.
- Implemented enhanced debug API endpoints for deployment verification, URL hardcoding detection, cookie isolation testing, and session configuration checks.
- Created scripts for visual demonstration of cookie isolation, enhanced debugging deployment, and verification of NextAuth cookie isolation.
- Developed a master isolation verification script to run all isolation checks in sequence and summarize results.
- Added detailed README and environment variable guidelines for proper deployment isolation.
2025-10-15 08:01:08 -04:00

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LearnHouse Isolation Fix: Improvements Summary

We've developed a comprehensive set of tools, scripts, and documentation to help diagnose and fix deployment isolation issues between DEV and LIVE instances. Here's a summary of the improvements:

1. Enhanced Debug Endpoints

We expanded the API debug capabilities significantly:

  • /api/v1/debug/deployment: Enhanced with detailed database, Redis, container, and hostname information
  • /api/v1/debug/urls: Improved to detect cross-contamination from both domains and categorize findings
  • /api/v1/debug/cookies: New endpoint to test cookie isolation and detect cross-deployment cookies
  • /api/v1/debug/session: New endpoint to check session configuration and origins

2. Verification Scripts

We created several verification scripts for different aspects of isolation:

  • verify-enhanced-isolation.sh: Comprehensive isolation checks for all aspects of deployment
  • test-nextauth-cookie-isolation.sh: Focused testing for NextAuth cookie isolation
  • verify-all-isolation.sh: Master script that runs all verification checks and produces a report
  • create-cookie-demo.sh: Visual tool to demonstrate and test cookie behavior in browsers

3. Documentation

  • ENHANCED_DEBUG_TOOLS.md: Detailed guide to all debug endpoints and how to use them
  • ISOLATION_TOOLKIT_README.md: Overview of all tools available for isolation testing
  • Updated ISOLATION_IMPLEMENTATION_CHECKLIST.md: Comprehensive checklist with new tools
  • Updated DATABASE_ISOLATION_FIX.md: Enhanced verification methods

4. Developer Experience

  • Visual cookie isolation demo with browser-based testing
  • HTML reports for easy sharing and analyzing of results
  • Colored terminal output for easy interpretation of verification results
  • Container and hostname information for infrastructure verification

5. Implementation Details

The specific code improvements include:

  1. Enhanced database information:

    • Now shows database username, hostname and database name
    • Extracts Redis instance information

  2. Cookie isolation testing:

    • Sets test cookies with deployment name
    • Checks if cookies from one deployment are visible to another
    • Visual browser-based tool to demonstrate isolation

  3. Session configuration verification:

    • Analyzes headers and environment variables that affect session behavior
    • Shows where sessions would be sent based on current configuration

  4. Comprehensive URL checking:

    • Categorizes URLs by domain to identify cross-contamination
    • Reports specific instances of hardcoded URLs in the frontend

Usage

To use these enhanced tools:

  1. Deploy the enhanced debug module:

    ./deploy-enhanced-debug.sh

  2. Run the comprehensive verification:

    ./verify-all-isolation.sh

  3. Check the reports generated in /tmp/learnhouse-isolation-report/

These enhancements will make it much easier to diagnose and fix isolation issues between the DEV and LIVE LearnHouse deployments.