Any [Mesh Config](https://istio.io/latest/docs/reference/config/istio.mesh.v1alpha1/) options can be configured like below:

```yaml
meshConfig:
  accessLogFile: /dev/stdout
```

#### Revisions

Control plane revisions allow deploying multiple versions of the control plane in the same cluster.
This allows safe [canary upgrades](https://istio.io/latest/docs/setup/upgrade/canary/)

```yaml

```bash
iop istio-control istio-discovery $IBASE/istio-control/istio-discovery \
            --set global.istioNamespace=istio-system

# Second istio-discovery, using master version of istio
TAG=latest HUB=gcr.io/istio-testing iop istio-master istio-discovery-master $IBASE/istio-control/istio-discovery \
            --set policy.enable=false \
            --set global.istioNamespace=istio-master
```

### Gateways

# Istio CNI Helm 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

## Introduction

[Istio](https://istio.io/latest/docs/concepts/what-is-istio/) is an open platform for providing a uniform way to [integrate
microservices](https://istio.io/latest/docs/examples/microservices-istio/), manage [traffic flow](https://istio.io/latest/docs/concepts/traffic-management/) across microservices, enforce policies

This allows the same configurations and lifecycle to apply to gateways as sidecars.

Note: this does mean that the namespace the gateway is deployed in must not have the `istio-injection=disabled` label.