# Istio CNI Node Agent

The Istio CNI Node Agent is responsible for several things

- Install an Istio CNI plugin binary on each node's filesystem, updating that node's CNI config in e.g (`/etc/cni/net.d`), and watching the config and binary paths to reinstall if things are modified.

by a different role than the prod version.

The intended users of this repo are users running Istio in production who want to select, tune
and understand each binary that gets deployed, and select which combination to use.

Note: each component can be installed in parallel with an existing Istio 1.0 or 1.1 installation in

```bash
make build
```

Ensure the created binary is in your PATH to run the examples below.

### Controller (in cluster)

Building a custom controller requires a Dockerhub (or similar) account. To build using the container based build:

```bash
HUB=docker.io/<your-account> TAG=latest make docker.operator
```