apiVersion: v1
name: cni
# This version is never actually shipped. istio/release-builder will replace it at build-time
# with the appropriate version
version: 1.0.0
appVersion: 1.0.0
description: Helm chart for istio-cni components
keywords:
  - istio-cni
  - istio
sources:
  - https://github.com/istio/istio
engine: gotpl

Harshavardhana <******@****.***> 1714299277 -0700

## Making changes

## Step 1. Make changes in charts and values.yaml in `manifests` directory

Be sure to provide sufficient documentation and example usage in values.yaml.
If the chart has a `values.schema.json`, that should be updated as well.

## Step 2. Update the istioctl/Operator values

If you are modifying the `gateway` chart, you can stop here.

# Istiod Helm Chart

This chart installs an Istiod deployment.

## Setup Repo Info

```console
helm repo add istio https://istio-release.storage.googleapis.com/charts
helm repo update
```

_See [helm repo](https://helm.sh/docs/helm/helm_repo/) for command documentation._

## Installing the Chart

Before installing, ensure CRDs are installed in the cluster (from the `istio/base` chart).

# Istio Ztunnel Helm Chart

This chart installs an Istio ztunnel.

## Setup Repo Info

```console
helm repo add istio https://istio-release.storage.googleapis.com/charts
helm repo update
```

_See [helm repo](https://helm.sh/docs/helm/helm_repo/) for command documentation._

## Installing the Chart

To install the chart:

```console
helm install ztunnel istio/ztunnel
```

## Uninstalling the Chart

This chart installs the Istio CNI Plugin. See the [CNI installation guide](https://istio.io/latest/docs/setup/additional-setup/cni/)
for more information.

## Setup Repo Info

```console
helm repo add istio https://istio-release.storage.googleapis.com/charts
helm repo update
```

_See [helm repo](https://helm.sh/docs/helm/helm_repo/) for command documentation._

## Installing the Chart

#### Legacy Gateway Helm charts

Istio historically offered two different charts - `manifests/charts/gateways/istio-ingress` and `manifests/charts/gateways/istio-egress`.
These are replaced by this chart.
While not required, it is recommended all new users use this chart, and existing users migrate when possible.

This chart has the following benefits and differences:

# Istio base Helm Chart

This chart installs resources shared by all Istio revisions. This includes Istio CRDs.

## Setup Repo Info

```console
helm repo add istio https://istio-release.storage.googleapis.com/charts
helm repo update
```

_See [helm repo](https://helm.sh/docs/helm/helm_repo/) for command documentation._

## Installing the Chart

To install the chart with the release name `istio-base`:

```console

| IMPORTANT |
| -------------------------- |

```console
helm install istio-base -n istio-system manifests/charts/base --set profile=openshift
```

2) `istio-cni` chart installs the CNI plugin. This should be installed after the `base` chart and prior to `istiod` chart. Need to add `--set pilot.cni.enabled=true` to the `istiod` install to enable its usage.

```console
helm install istio-cni -n kube-system manifests/charts/istio-cni --set profile=openshift
```