## 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.

apiVersion: v1
name: ztunnel
# 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 ztunnel components
keywords:
  - istio-ztunnel
  - istio
sources:
  - https://github.com/istio/istio
engine: gotpl

apiVersion: v2
name: gateway
description: Helm chart for deploying Istio gateways
type: application

# 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

sources:
- https://github.com/istio/istio
icon: https://istio.io/latest/favicons/android-192x192.png
keywords:
- istio

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

apiVersion: v1
name: base
# 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
tillerVersion: ">=2.7.2"
description: Helm chart for deploying Istio cluster resources and CRDs
keywords:
  - istio
sources:
  - https://github.com/istio/istio
engine: gotpl

# 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

```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
```

"istio-ingressgateway" -}} {{- end -}} {{- end }} {{/* Create chart name and version as used by the chart label. */}} {{- define "gateway.chart" -}} {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }} {{- end }} {{- define "gateway.labels" -}} helm.sh/chart: {{ include "gateway.chart" . }} {{ include "gateway.selectorLabels" . }} {{- if .Chart.AppVersion }} app.kubernetes.io/version: {{ .Chart.AppVersion | quote }} {{- end }} app.kubernetes.io/managed-by:...

This folder provides a variety of "profiles" for helm installation.
While a user can just explicitly pass this with `--values/-f`.

However, Istio also provides a feature to bundle these with the charts, which is convenient when installing from remote charts.
For details, see `copy-templates` Makefile target, and `manifests/zzz_profile.yaml`.

Any changes to this folder should have a `make copy-templates` applied afterwards.

The code automatically detects the proxyUID and proxyGID from RunAsUser/RunAsGroup and exclude them from interception, defaulting to 1337

### Overview

- [istio-cni Helm chart](../manifests/charts/istio-cni/templates)
    - `install-cni` daemonset - main function is to install and help the node CNI, but it is also a proper server and interacts with K8S, watching Pods for recovery.