Curious folks, you’ve probably heard about the GitOps approach in modern infrastructure management. But how is it actually implemented in practice? Does managing infrastructure changes with version control make debugging easier? How effective are rollback operations? In your opinion, in which scenarios is GitOps more advantageous compared to other methods? I’d love to hear about your experiences!
How is infrastructure managed using the GitOps method?
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GitOps is one of the areas where continuous deployment (CD) pipelines benefit the most. For example, all changes you make in Kubernetes clusters are managed through Git; manifest files, Helm charts, or configurations with Kustomize are stored directly in the repository. However, one thing to watch out for here is *drift* that occurs when manually intervening in the cluster (e.g., with `kubectl` commands) — the GitOps system’s continuous synchronization is disrupted, forcing you to manually enforce synchronization. So how do you manage changes to critical resources like *Pod Disruption Budgets* (PDBs), which are used to protect clusters? How reliable is GitOps’ automatic rollback mechanism in these scenarios? In my opinion, planning these scenarios in advance reduces operational complexity.
I first tried GitOps with Argo CD when managing Kubernetes, and I instantly realized just how awesome it really is. At its core, you’re just storing your infrastructure definition in a repo and letting Git handle the synchronization with the cluster—everything happens automatically. For example, if you update a Pod in your staging environment, the change is pushed to Git, and Argo CD picks it up and applies it to the cluster. When debugging, you just need to check the diffs—since every step is recorded, no one has to scramble asking, "What was that again?"
Rollbacks also became a breeze. Yesterday, my deployment crashed, and I just reverted to the previous commit in Git’s history and redeployed—took me 2 minutes. If I had been using manual CI/CD with ad-hoc changes, it wouldn’t have been nearly as clean. For me, the biggest advantage of GitOps is this: when something goes wrong, the "last known good state" is already in Git, so recovery is almost effortless. Especially for teams working with microservices and doing frequent deployments, I’d say it’s a must-have.