What is GitOps and why now?

The only fries I think about now

Here is where GitOps comes in.

  • Kubernetes is mostly declarative so we should take advantage of this. Along with K8S, today’s tools leverage easier-to-understand YAML to configure your systems.
  • The pull request is used to trigger your update. You get the benefit of a peer review and existing change management processes.
  • There is an automated delivery system that is responsible for applying the change. Manual changes are unnecessary and bad practice, especially if people are logging into servers.
  • No kubectl. RBAC for user-level access control isn’t trivial. (Check out the AirwaveTech article on how to help with this)
  • The desired state of your entire stack is housed in source code. Various offerings of git allow extensibility for building custom solutions.
  • Gain new abilities: Predictability, Repeatability, Rapid Recoverability. This is what happens when you have the 3Ps.
  • Push VS Pull. Are you manually pushing a button or is the system automatically applying the changes? Think of this as being analogous to continuous delivery VS continuous deployment, with pull equating to automatically deploying software.
a very simplified GitOps Pipeline
  • Host / VM changes
  • Kubernetes changes (what most people think of when you say GitOps)
  • Software deployments to Kubernetes

To sum it up…




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