Infra-Lab cli devlog #1

Well, I still need to figure out how to work with k8s networks, with proxy protocol, and how to run services in k8s with knowledge about which IP made a request.

This all requires the possibility to run and recreate local infra. That's why I decided to migrate Makefiles from https://github.com/yura-shutkin/k8s-lab to an application that I can run from any directory, and I would like to have completion for some parameters.
Here is the new repo https://github.com/infra-lab-xyz/infra-lab-cli

So, what is this application?

In short, it is a wrapper over other tools: podman, minikube, kind, webhook, helm, with more to come.
I'm adding some extra logic I've never had in Makefile: autocomplete supported k8s versions in minikube, for example.

What have I done so far?

2 issues are closed:

• Podman, minikube, kind, and webhook functionality
• Use reflection to ease config modification

I've added podman machine management, well, without create and delete, but start, stop, restart, and configure are implemented.
I've added kind and minikube commands to manage local clusters
I've added the possibility to use config and override default values with config file, env variable or a flag in the command.

Previously, to modify the config, add a new parameter or remove an existing one, I needed to touch at least 3 places:

• The config structure itself
• The env bind generation function (this function generated a map with some portion of hardcode)
• The function that sets the default values
  

Now I need to update just one place, the config itself.

type ILCConfig struct {
	Version     string `mapstructure:"version" default:"1.0"`
	Apps        apps   `mapstructure:"apps" `
	ProjectsDir string `mapstructure:"projects_dir" default:"~/.infra-lab"`
}

type apps struct {
	Docker   dockerConfig `mapstructure:"docker" `
	Helm     helm         `mapstructure:"helm" `
	Kind     kind         `mapstructure:"kind" `
	Minikube minikube     `mapstructure:"minikube" `
	Podman   podman       `mapstructure:"podman" `
	Skopeo   skopeo       `mapstructure:"skopeo" `
	Webhook  webhook      `mapstructure:"webhook" `
}

type skopeo struct {
	Binary string `mapstructure:"binary" default:"skopeo"`
}

Also, I like being able to set Grafana configs via env vars. So here I can do too.
This variable ILC__APPS__MINIKUBE__KUBE_VERSION can override the default value of the Kubernetes version to use in the minikube cluster.

Next steps

I'm working on Helm. I have no issues with HTTP helm repos, but with OCI. OCI is supported by Helm, yet you cannot add the OCI repo. And to deploy, you need to provide the whole address, which is a bit too much.

So why not save OCI repos to a file and query when necessary the list to allow helm upgrade --instal <repo_name>/<chart_name>... command

Another thing is the config itself. The config file is not created yet, and the project dir as well.