In our commitment to consistency and security, we’ve embraced the immutable infrastructure approach. All our infrastructure information is stored within a Version Control System (VCS), allowing us to set up fresh, fully-equipped environments within minutes. Unlike the mutable model, where changes are made directly to the live servers leading to potential inconsistencies, our approach ensures each change triggers a new deployment. This practice results in a reliable, predictable environment, simplifying troubleshooting processes and reinforcing security measures.

Disruptions and failures is a regular part of operating a system, especially in distributed and complex systems. We embrace chaos engineering - a practice that injects failures into systems to ensure they can withstand unexpected disruptions. It helps us to identify weak points and build resilience into a system.

Disruptions and failures is a regular part of operating a system, especially in distributed and complex systems. We embrace chaos engineering - a practice that injects failures into systems to ensure they can withstand unexpected disruptions. It helps us to identify weak points and build resilience into a system.

This technique involves rolling out the changes to a small subset of users before making the changes to everyone. This subset, or "canary," experiences the new software version first. Automated tests are then run to check the system's behavior and performance. If there's a problem, the system automatically rolls back to the previous version.

Through Continuous Delivery, we maintain a deployable state for our software at all times. This lets us release changes to production automatically as soon as they're made. Our stringent automated testing ensures software quality, while our robust deployment pipeline enables swift, safe releases. This way, we quickly respond to feedback, continuously improve, and ensure a stable, secure production environment.