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Flux CD

Flux CD is a set of Kubernetes controllers that keeps a cluster aligned with configuration from Git or another declared source. You review and record the desired state, then Flux repeatedly detects and corrects differences.

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Don't Panic - Flux CD

Flux CD centers on Flux. Flux CD applies GitOps to Kubernetes. You declare the state you want in version-controlled configuration.

Operate from the project's own resources and APIs. Learn how desired state becomes running state, which status conditions matter, and which dependencies (network, storage, identity, certificates) the control plane assumes.

Upgrades, backups, and credential rotation are part of the product, not optional aftercare. Version skew between clients and servers creates failures that look like application bugs. Pin versions and rehearse rollback.

Convenience features reduce boilerplate and widen blast radius. Enable them when you can observe and reverse the expanded surface. Defaults from quickstarts are starting points, not production policy.

Name owners for upgrades, credentials, and disaster recovery before traffic arrives. Unowned control-plane state becomes an outage with no clear pager. Prefer explicit version pins and tested rollback over floating tags that quietly change behavior between deploys.

Name owners for upgrades, credentials, and disaster recovery before traffic arrives. Unowned control-plane state becomes an outage with no clear pager. Prefer explicit version pins and tested rollback over floating tags that quietly change behavior between deploys.

Name owners for upgrades, credentials, and disaster recovery before traffic arrives. Unowned control-plane state becomes an outage with no clear pager. Prefer explicit version pins and tested rollback over floating tags that quietly change behavior between deploys.

Read the Intro for the mental model. Use the Cheatsheet when you need the resource map. Updates and Upstream track the Flux release line that changes these APIs.

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