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[release-0.16] Add helm migration guide #1825

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Aug 5, 2024
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[release-0.16] Add helm migration guide #1825

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61 changes: 61 additions & 0 deletions docs/deployment/helm.md
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,67 @@ export NFD_NS=node-feature-discovery
helm install nfd/node-feature-discovery --set nameOverride=NFDinstance --set master.replicaCount=2 --namespace $NFD_NS --create-namespace
```

## Upgrading the chart

To upgrade the `node-feature-discovery` deployment to {{ site.release }} via Helm.

### From v0.7 and older

Please see the [uninstallation guide](https://kubernetes-sigs.github.io/node-feature-discovery/v0.7/get-started/deployment-and-usage.html#uninstallation).
And then follow the standard [deployment instructions](#deployment).

### From v0.8 - v0.11

Helm deployment of NFD was introduced in v0.8.0.

```bash
export NFD_NS=node-feature-discovery
# Uninstall the old NFD deployment
helm uninstall node-feature-discovery --namespace $NFD_NS
# Update Helm repository
helm repo update
# Install the new NFD deployment
helm upgrade --install node-feature-discovery nfd/node-feature-discovery --namespace $NFD_NS --set master.enable=false
# Wait for NFD Worker to be ready
kubectl wait --timeout=-1s --for=condition=ready pod -l app.kubernetes.io/name=node-feature-discovery --namespace $NFD_NS
# Enable the NFD Master
helm upgrade --install node-feature-discovery nfd/node-feature-discovery --namespace $NFD_NS --set master.enable=true
```

### From v0.12 - v0.13

In v0.12 the `NodeFeature` CRD was introduced as experimental.
The API was not enabled by default.

```bash
export NFD_NS=node-feature-discovery
# Update Helm repository
helm repo update
# Install and upgrade CRD's
kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/node-feature-discovery/master/deployment/base/nfd-crds/nfd-api-crds.yaml
# Install the new NFD deployment
helm upgrade node-feature-discovery nfd/node-feature-discovery --namespace $NFD_NS --set master.enable=false
# Wait for NFD Worker to be ready
kubectl wait --timeout=-1s --for=condition=ready pod -l app.kubernetes.io/name=node-feature-discovery --namespace $NFD_NS
# Enable the NFD Master
helm upgrade node-feature-discovery nfd/node-feature-discovery --namespace $NFD_NS --set master.enable=true
```

### From v0.14+

As of version v0.14 the Helm chart is the primary deployment method for NFD,
and the CRD `NodeFeature` is enabled by default.

```bash
export NFD_NS=node-feature-discovery
# Update Helm repository
helm repo update
# Install and upgrade CRD's
kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/node-feature-discovery/{{ site.release }}/deployment/base/nfd-crds/nfd-api-crds.yaml
# Install the new NFD deployment
helm upgrade node-feature-discovery nfd/node-feature-discovery --namespace $NFD_NS
```

## Uninstalling the chart

To uninstall the `node-feature-discovery` deployment:
Expand Down