100 Days of DevOps and Cloud (AWS), Day 27: Undo Isn't a Switch, and Neither Is Public
dev.to·
Managing cloud infrastructure and version control safely requires understanding the subtle details of operational commands and network routing. This article highlights two practical concepts from DevOps and cloud engineering: safely reverting Git commits and configuring public subnets in AWS VPCs. In Git, using git revert rather than destructive history resets creates an explicit, auditable record of changes while remaining fully reversible. On the cloud side, the guide clarifies that an AWS VPC subnet isn't made public by a simple toggle switch, but rather through specific routing table configurations that allow EC2 instances inside it to access the internet. For backend developers expanding into platform engineering, grasping these practical details prevents common production missteps in CI/CD workflows and network security configurations.