Add documentation

docs/add-ons/external-secrets.md

@@ -0,0 +1,37 @@
+
+# External Secrets Operator
+
+[External Secrets Operator](https://external-secrets.io/latest) is a Kubernetes operator that integrates external secret management systems like AWS Secrets Manager, HashiCorp Vault, Google Secrets Manager, Azure Key Vault and many more. The operator reads information from external APIs and automatically injects the values into a Kubernetes Secret.
+
+## Usage
+
+The External Secrets Operator can be deployed by enabling the add-on via the following.
+
+```hcl
+enable_external_secrets = true
+```
+
+You can optionally customize the Helm chart that deploys the operator via the following configuration.
+
+```hcl
+  enable_external_secrets = true
+  external_secrets_helm_config = {
+    name                       = "external-secrets"
+    chart                      = "external-secrets"
+    repository                 = "https://charts.external-secrets.io/"
+    version                    = "0.5.6"
+    namespace                  = "external-secrets"
+  }
+```
+
+###  GitOps Configuration
+
+The following properties are made available for use when managing the add-on via GitOps.
+
+Refer to [locals.tf](modules/kubernetes-addons/external-secrets/locals.tf) for latest config. GitOps with ArgoCD Add-on repo is located [here](https://github.com/aws-samples/eks-blueprints-add-ons/blob/main/chart/values.yaml).
+
+```hcl
+  argocd_gitops_config = {
+    enable = true
+  }
+```

docs/add-ons/index.md

@@ -17,6 +17,7 @@ The framework currently provides support for the following add-ons:
 | [Cluster Autoscaler](cluster-autoscaler.md) | Deploys the standard cluster autoscaler into an EKS cluster. |
 | [Crossplane](crossplane.md) | Deploys Crossplane into an EKS cluster. |
 | [ExternalDNS](external-dns.md) | Deploys External DNS into an EKS cluster. |
+| [External Secrets Operator](external-secrets.md) | Deploys External Secrets Operator into an EKS cluster. |
 | [Fargate Fluent Bit](fargate-fluent-bit.md) | Adds Fluent Bit support for EKS Fargate |
 | [Karpenter](karpenter.md) | Deploys Karpenter into an EKS cluster. |
 | [Keda](keda.md) | Deploys Keda into an EKS cluster. |