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26 lines
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26 lines
1.2 KiB
Markdown
# Helm Controller
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The Helm Controller is a Kubernetes operator, allowing one to declaratively manage Helm chart
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releases with Kubernetes manifests.
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The desired state of a Helm release is described through a Kubernetes Custom Resource named `HelmRelease`.
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Based on the creation, mutation or removal of a HelmRelease resource in the cluster,
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Helm actions are performed by the controller.
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Features:
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- Watches for `HelmRelease` objects and generates `HelmChart` objects
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- Fetches artifacts produced by [source-controller](../source/controller.md) from `HelmChart` objects
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- Watches `HelmChart` objects for revision changes (semver ranges)
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- Performs Helm v3 actions including Helm tests as configured in the `HelmRelease` objects
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- Runs Helm install/upgrade in a specific order, taking into account the depends-on relationship
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- Prunes Helm releases removed from cluster (garbage collection)
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- Reports Helm releases status (alerting provided by [notification-controller](../notification/controller.md))
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Links:
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- Source code [fluxcd/helm-controller](https://github.com/fluxcd/helm-controller)
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- Specification [docs](https://github.com/fluxcd/helm-controller/tree/master/docs/spec)
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