Istio CNI integration with Istio 1.0.x

[tiswanso]

Hi @rafik8,

Sorry for the late reply. I was not monitoring discuss.istio.io much prior to 1.1 release.

As you mention the Istio CNI is indeed officially experimental for 1.1. That being said, the primary integration is with the installation and the setup of the istio-sidecar-injector configmap. So, the Istio CNI 0.1.0 should be usable with Istio 1.0.x as long as the istio-sidecar-injector configmap is modified to remove the istio-init from initContainers section of the template.

See the following discussion for more explanation on modifying the istio-sidecar-injector configmap:

Installing CNI - update sidecar config

Hi Sourabh, To make sure I understand, you want to modify an existing Istio install’s istio-sidecar-injector configmap to enable Istio CNI, right? If that’s the case, what needs to be done is to edit the template and remove the istio-init entry in the initContainers section. That will allow you to use auto-sidecar injection OR istioctl as shown in the Istio CNI install guide. You can see a detailed example of what the istio_cni.enabled=true helm setting does via: ~/tmp/istio/istio-1.1.1 hel…