Update helm charts which are declared in Terraform

[secustor]

What would you like Renovate to be able to do?
We use Terraform to handle pretty much all of our infrastructure including Kubernetes and the deployments on it.
To extend the coverage of RenovateBot regarding this topic, it should also update versions of helm charts which are deployed using Terraform.

resource "helm_release" "example" {
  name       = "my-redis-release"
  repository = "https://kubernetes-charts.storage.googleapis.com" 
  chart      = "redis"
  version    = "6.0.1"
}

Describe the solution you'd like
The helm data source can be reused here.
The logic would be implemented in the Terraform manager and would look for occurrences of resource "helm_release" in *.tf files to identify dependencies.

Additional context
For now variable resolutions like this are out of scope.

resource "helm_release" "example" {
  name       = "my-redis-release"
  repository = "https://kubernetes-charts.storage.googleapis.com" 
  chart      = "redis"
  version    = var.redis_chart_version
}

variable "redis_chart_version" {
  type    = string 
  default = "6.0.1"
}

You can assign me this issue, if you are interested.

[rarkins]

Sounds great

[renovate-release]

🎉 This issue has been resolved in version 21.22.0 🎉

The release is available on:

• GitHub release
• 21.22.0

Your semantic-release bot 📦🚀