Fix ArgoCD minor issues (cloudposse/terraform-aws-components#571)

Co-authored-by: cloudpossebot <[email protected]>

Author: goruha

src/README.md

@@ -4,13 +4,8 @@ This component is responsible for provisioning [Argo CD](https://argoproj.github
 
 Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes.
 
-> :warning::warning::warning: ArgoCD CRDs must be installed separately from this component/helm release. :warning::warning::warning:
-```shell
-kubectl apply -k "https://github.com/argoproj/argo-cd/manifests/crds?ref=<appVersion>"
-
-# Eg. version v2.4.9
-kubectl apply -k "https://github.com/argoproj/argo-cd/manifests/crds?ref=v2.4.9"
-```
+> :warning::warning::warning: Initial install needs run `deploy` two times because first run will create ArgoCD CRDs
+> and second run will finish ArgoCD configuration. :warning::warning::warning:
 
 ## Usage
 
@@ -61,6 +56,7 @@ components:
 |------|---------|
 | <a name="provider_aws"></a> [aws](#provider\_aws) | >= 4.0 |
 | <a name="provider_aws.config_secrets"></a> [aws.config\_secrets](#provider\_aws.config\_secrets) | >= 4.0 |
+| <a name="provider_kubernetes"></a> [kubernetes](#provider\_kubernetes) | >= 2.9.0 |
 
 ## Modules
 
@@ -87,6 +83,7 @@ components:
 | [aws_ssm_parameter.oidc_client_id](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ssm_parameter) | data source |
 | [aws_ssm_parameter.oidc_client_secret](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ssm_parameter) | data source |
 | [aws_ssm_parameters_by_path.argocd_notifications](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ssm_parameters_by_path) | data source |
+| [kubernetes_resources.example](https://registry.terraform.io/providers/hashicorp/kubernetes/latest/docs/data-sources/resources) | data source |
 
 ## Inputs
 

src/main.tf

@@ -225,6 +225,12 @@ module "argocd" {
   context = module.this.context
 }
 
+data "kubernetes_resources" "example" {
+  api_version    = "apiextensions.k8s.io/v1"
+  kind           = "CustomResourceDefinition"
+  field_selector = "metadata.name==applications.argoproj.io"
+}
+
 module "argocd_apps" {
   source  = "cloudposse/helm-release/aws"
   version = "0.3.0"
@@ -240,7 +246,7 @@ module "argocd_apps" {
   atomic               = var.atomic
   cleanup_on_fail      = var.cleanup_on_fail
   timeout              = var.timeout
-  enabled              = local.enabled && var.argocd_apps_enabled
+  enabled              = local.enabled && var.argocd_apps_enabled && length(data.kubernetes_resources.example.objects) > 0
   values = compact([
     templatefile(
       "${path.module}/resources/argocd-apps-values.yaml.tpl",