This Helmfile can be used to install Istio by converting the istiooperator.yaml file into manifests, by utilizing the istioctl manifest generate command, then converting them into a Helm Chart (bedag/raw), to finally install into the cluster.
IstioCTL does not provide a good way to diff between versions. Using IstioCTL to generate manifests is messy, and it is hard to deal with leftovers. This Helmfile is a good option because it allows you to use Helm to install Istio, which is a much more mature tool.
And why not use the official Helm Chart? Because it is not as complete as the IstioCTL and istiooperator.yaml file. For example, check the comments from this PR.
I recommend you to use asdf-vm to manage your tools versions. You can use the .tool-versions file to install the correct versions of the tools.
You'll need istioctl (the version depends on you), helm, helmfile and kubectl. Also, you'll need the slice kubectl plugin, which you can install with kubectl krew install slice. Tested using MacOS and Linux, distros that can use bash as the default shell.
- Clone this repo
- Copy the
istiooperator.yamlfile to the root of this repo (overwrite the existing one) - Run
helmfile diffto see the changes that will be applied to the cluster - you can also usehelmfile templateto see the generated manifests - Run
helmfile applyto apply the changes to the cluster