How GitHub engineers tackle platform problems

This post details best practices for platform engineers tackling complex problems. It emphasizes understanding the domain through communication and documentation, bridging concepts to platform-specific skills such as networking (TCP, UDP, L4 load balancing, dig), operating systems, Infrastructure as Code (Terraform, Ansible, Consul), and distributed systems (failover, recovery). It highlights the importance of knowledge sharing for collaboration and preventing knowledge loss. The post also discusses the impact radius of platform changes, particularly for foundational services like DNS, and the necessity of robust testing strategies including IaC, end-to-end testing, and self-healing mechanisms.