Stop blindly updating. Start orchestrating. Sentinel is the mission-critical controller that bridges the gap between manual Docker management and risky "black-box" automation. π The Core Value Proposition In modern infrastructure, automation without governance is a liability. While tools like Watchtower revolutionized the "auto-pull" concept, they often lack the safeguards required for production environments. Sentinel was built for the DevOps engineer who needs the efficiency of automated updates but cannot afford 3:00 AM downtime. It brings Manual Approval Gates , Health-Check Driven Rollbacks , and API-First Orchestration to standard Docker environments. π The Three Pillars of Sentinel 1. Uncompromising Safety (The "Self-Healing" Edge) Sentinel doesn't just "recreate" containers; it protects them. Health-Gated Rollbacks: If a new image fails its internal health check, Sentinel detects the failure in real-time and restores the previous stable image automatically.β¦