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GitOps operator

A GitOps operator is software that continuously reconciles a system’s runtime state with declarative configuration stored in a version-controlled source.

How 2 Manning books explain it

Automating API Delivery

A GitOps operator is software that continuously monitors a system and synchronizes it with desired configuration from a source such as a Git repository.

How it is used
Deploys and maintains API gateway configuration through pull-based synchronization with a Git repository.
How deep it goes
Explains monitoring, drift detection, state retrieval, application, placement, and security benefits without detailing operator implementation.
Examples
Uses manual gateway changes, decK diff, kubectl diff, Argo CD, and Flux as deployment examples.
What you can do after
Operate pull-based deployments that detect configuration drift and synchronize an API gateway with Git-managed desired state.

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Kubernetes for Developers

A GitOps operator is a cluster-resident control loop that reconciles running resources with declarative configuration stored in a version-controlled repository.

How it is used
Maintains Kubernetes resources from version-controlled configuration through continuous reconciliation.
How deep it goes
Defines the control loop and contrasts it with event-driven deployment, but does not detail operator installation or configuration.
Examples
Uses Flux as an operator example and Cloud Build with kubectl apply as the contrasting pipeline approach.
What you can do after
Evaluate continuous reconciliation as a way to keep a Kubernetes cluster aligned with repository configuration.

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Related concepts

These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.