Feat: 🚀 Prepared addon for Kube-State-Matrics (#29)

* feat: Prepared kube-state-metrics

* feat: remove unnecessary vars and tflint warnings

* fix: fix main.tf error, remove cluster name

* fix: update velero readme

* fix: update node group name and readme

* fix: remove useless resources

* fix: remove extra conf arg

* fix: remove dependency error

.github/workflows/readme.yml

@@ -68,7 +68,7 @@ jobs:
       - name: Generate TF Docs
         uses: terraform-docs/gh-actions@v1.0.0
         with:
-          working-dir: addons/aws-ebs-csi-driver,addons/aws-efs-csi-driver,addons/aws-load-balancer-controller,addons/aws-node-termination-handler,addons/calico-tigera,addons/cluster-autoscaler,addons/external-secrets,addons/fluent-bit,addons/helm,addons/ingress-nginx,addons/istio-ingress,addons/karpenter,addons/kiali-server,addons/kubeclarity,addons/metrics-server,addons/nri-bundle # config,modules/guardduty,modules/inspector
+          working-dir: addons/aws-ebs-csi-driver,addons/aws-efs-csi-driver,addons/aws-load-balancer-controller,addons/aws-node-termination-handler,addons/calico-tigera,addons/cluster-autoscaler,addons/external-secrets,addons/fluent-bit,addons/helm,addons/ingress-nginx,addons/istio-ingress,addons/karpenter,addons/kiali-server,addons/kubeclarity,addons/metrics-server,addons/nri-bundle,addons/velero,addons/kube-state-metrics
           git-push: true
           template: |-
             <!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->

_examples/complete/config/override-kube-state-matrics.yaml

@@ -0,0 +1,24 @@
+## Node affinity for particular node in which labels key is "Infra-Services" and value is "true"
+
+affinity:
+  nodeAffinity:
+    requiredDuringSchedulingIgnoredDuringExecution:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: "eks.amazonaws.com/nodegroup"
+          operator: In
+          values:
+          - "critical"
+
+
+## Using limits and requests
+resources:
+  limits:
+    cpu: 300m
+    memory: 250Mi
+  requests:
+    cpu: 50m
+    memory: 150Mi
+
+podAnnotations:
+  co.elastic.logs/enabled: "true"

_examples/complete/main.tf

@@ -159,6 +159,7 @@ module "addons" {
   aws_node_termination_handler = true
   aws_efs_csi_driver           = true
   aws_ebs_csi_driver           = true
+  kube_state_metrics           = true
   # karpenter                    = false    # -- Set to `false` or comment line to Uninstall Karpenter if installed using terraform.
   calico_tigera = true
   new_relic     = true
@@ -192,6 +193,7 @@ module "addons" {
   fluent_bit_helm_config                   = { values = [file("./config/override-fluent-bit.yaml")] }
   velero_helm_config                       = { values = [file("./config/override-velero.yaml")] }
   new_relic_helm_config                    = { values = [file("./config/override-new-relic.yaml")] }
+  kube_state_metrics_helm_config           = { values = [file("./config/override-kube-state-matrics.yaml")] }
 
   # -- Override Helm Release attributes
   metrics_server_extra_configs               = var.metrics_server_extra_configs
@@ -210,6 +212,7 @@ module "addons" {
   fluent_bit_extra_configs                   = var.fluent_bit_extra_configs
   velero_extra_configs                       = var.velero_extra_configs
   new_relic_extra_configs                    = var.new_relic_extra_configs
+  kube_state_metrics_extra_configs           = var.kube_state_metrics_extra_configs
 
   # -- Custom IAM Policy Json for Addon's ServiceAccount
   cluster_autoscaler_iampolicy_json_content = file("./custom-iam-policies/cluster-autoscaler.json")

_examples/complete/variables.tf

@@ -129,4 +129,9 @@ variable "velero_extra_configs" {
 variable "new_relic_extra_configs" {
   type    = any
   default = {}
+}
+
+variable "kube_state_metrics_extra_configs" {
+  type    = any
+  default = {}
 }

addons/kube-state-metrics/README.md

@@ -0,0 +1,25 @@
+# Kube-State-Metrics Helm Chart
+
+kube-state-metrics (KSM) is a simple service that listens to the Kubernetes API server and generates metrics about the state of the objects. (See examples in the Metrics section below.) It is not focused on the health of the individual Kubernetes components, but rather on the health of the various objects inside, such as deployments, nodes and pods. Look into this [official Doc](https://github.com/kubernetes/kube-state-metrics) of Kube-State-Metrics for more further information.
+
+
+## Installation
+Below terraform script shows how to use External Secrets Terraform Addon, A complete example is also given [here](https://github.com/clouddrove/terraform-helm-eks-addons/blob/master/_examples/complete/main.tf).
+
+
+```hcl
+module "addons" {
+  source  = "clouddrove/eks-addons/aws"
+  version = "0.0.6"
+  
+  depends_on       = [module.eks]
+  eks_cluster_name = module.eks.cluster_name
+
+  kube_state_metrics              = true
+  kube_state_metrics_helm_config  = { values = [file("./config/override-kube-state-matrics.yaml")] }
+}
+```
+
+
+<!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
+<!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->