Remove Grafana provider for EKS (#179)

* Remove Grafana provider for EKS

* Drop provider

* Add provider constraint config

examples/eks-multicluster/main.tf

@@ -3,7 +3,6 @@ module "aws_observability_accelerator" {
   aws_region                          = var.eks_cluster_1_region
   enable_managed_prometheus           = false
   enable_alertmanager                 = true
-  grafana_api_key                     = var.grafana_api_key
   managed_prometheus_workspace_region = null
   managed_prometheus_workspace_id     = var.managed_prometheus_workspace_id
   managed_grafana_workspace_id        = var.managed_grafana_workspace_id
@@ -44,7 +43,6 @@ module "eks_cluster_1_monitoring" {
     aws        = aws.eks_cluster_1
     kubernetes = kubernetes.eks_cluster_1
     helm       = helm.eks_cluster_1
-    grafana    = grafana
   }
 
   depends_on = [
@@ -82,7 +80,6 @@ module "eks_cluster_2_monitoring" {
     aws        = aws.eks_cluster_2
     kubernetes = kubernetes.eks_cluster_2
     helm       = helm.eks_cluster_2
-    grafana    = grafana
   }
 
   depends_on = [

examples/eks-multicluster/providers.tf

@@ -39,8 +39,3 @@ provider "aws" {
   region = var.eks_cluster_2_region
   alias  = "eks_cluster_2"
 }
-
-provider "grafana" {
-  url  = module.aws_observability_accelerator.managed_grafana_workspace_endpoint
-  auth = var.grafana_api_key
-}

examples/eks-multicluster/variables.tf

@@ -39,7 +39,7 @@ variable "managed_grafana_workspace_id" {
 }
 
 variable "grafana_api_key" {
-  description = "API key for authorizing the Grafana provider to make changes to Amazon Managed Grafana"
+  description = "API key for external-secrets to create secrets for grafana-operator"
   type        = string
   default     = ""
   sensitive   = true

examples/eks-multicluster/versions.tf

@@ -21,9 +21,5 @@ terraform {
       source  = "gavinbunney/kubectl"
       version = ">= 1.14"
     }
-    grafana = {
-      source  = "grafana/grafana"
-      version = ">= 1.25.0"
-    }
   }
 }