feat: Add infrastructure and security improvements#169
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AbelOsaretin merged 4 commits intoJun 30, 2026
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Implement request signing verification to ensure request integrity using HMAC-SHA256 signatures. Features include: - HMAC signature validation with configurable secret - Timestamp validation (5-minute window) to prevent replay attacks - Timing-safe comparison to prevent timing attacks - Middleware integration for admin endpoints - Comprehensive test coverage
Implement /ready endpoint for Kubernetes readiness checks. The probe verifies: - Database connection pool is operational - Satellite data sources are not in extended outage Returns 200 when ready, 503 when not ready with detailed check results.
…emetry Implement application performance monitoring integration with configurable provider support: - DataDog APM with dd-trace - New Relic monitoring - OpenTelemetry with auto-instrumentation - Environment-based configuration (APM_PROVIDER env var) - Graceful fallback when packages are not installed
Wire up the new middleware and endpoints: - Apply request signing middleware to admin routes - Add /ready endpoint alongside existing /health liveness endpoint - Initialize APM provider on server startup - Add environment variable documentation for all new features
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Closes #118, Closes #119, Closes #120, Closes #121
Type of Change
Summary
This PR implements four infrastructure and security improvements for the Heliobond backend:
Request Signing Verification (HMAC) - Adds middleware to verify request integrity using HMAC-SHA256 signatures with configurable secrets, timestamp validation (5-minute window), and timing-safe comparison to prevent replay and timing attacks.
Kubernetes Readiness Probe - Adds a
/readyendpoint that checks database connection pool status and satellite data source health, returning 200 when ready and 503 when not ready with detailed check results.Kubernetes Liveness Probe - The existing
/healthendpoint serves as the liveness probe, returning basic health status and uptime information.APM Integration - Implements application performance monitoring with configurable provider support for DataDog, New Relic, and OpenTelemetry, with graceful fallback when packages are not installed.
Motivation / Context
Closes #118, Closes #119, Closes #120, Closes #121
These improvements enhance the backend's production readiness by:
The implementation follows existing codebase patterns and includes comprehensive test coverage for the request signing middleware.