Diff values file using helm provider - kubernetes

Question

I hope you can help me light some more light on my issue.
Currently I'm using:
Terraform v1.3.5
Helm provider v2.8.0
Kubernetes provider v2.16.1
Lately I've been adapting the helm provider on Terraform, to help me manage Helm releases with more resiliency. It helps a lot to be able to plan changes and see what has changed and what remains the same. It merges really well with the infrastructure details and I can manage everything with just one tool, it has been great.
There is one thing that bothers me a little. It's the terraform plan preview of the values file, it just shows you that some changes have been made, but not where or which. Let me add an example.
File main.tf:
# I'm using the "manifest" setting to calculate manifest diffs
provider "helm" {
kubernetes {
config_path = "~/.kube/config"
config_context = "clusterconfig"
}
experiments {
manifest = true
}
}
# The helm chart lives locally on my repo. I'm passing the values file and an
# override for the image tag.
resource "helm_release" "release" {
name = "example"
chart = "../../helm/chart"
namespace = "example"
wait = true
set {
name = "image.tag"
value = "latest"
}
values = [
file("helm/values-example.yaml")
]
}
This works great, the problem comes when I make a change on the values file. It shows the whole file instead of just the changes. For example in my values file I change the replicas from 1 to 2:
File values-example.yaml:
replicaCount: 1
image:
repository: test
pullPolicy: ifNotPresent
The execution:
$ terraform plan
(...)
Terraform will perform the following actions:
# helm_release.example will be updated in-place
~ resource "helm_release" "example" {
~ manifest = jsonencode(
~ {
~ "deployment.apps/apps/v1/deployname" = {
~ spec = {
- replicas = 1 -> 2
}
}
}
}
)
~ values = [
- <<-EOT
replicaCount: 1
image:
repository: test
pullPolicy: ifNotPresent
EOT,
+ <<-EOT
replicaCount: 2
image:
repository: test
pullPolicy: ifNotPresent
EOT,
]
This makes it very difficult to see which values settings have been changed, when the values file is bigger.
So then, my question, do you know if there is a way to diff the values? I would like to see only the changes instead of the whole file.
What I've seen online:
It's been asked for on GitHub, but closed https://github.com/hashicorp/terraform-provider-helm/issues/305
Maybe something like this can be implemented: Use diferent values in helm deploy through Terraform (for_each)
Thanks in advance for the help. Let me know if I can help with any more information.