Created and updated docs for 1.23-21 (#1992)

* Added directory docs/contents/releases/1-23/21

* Added file docs/contents/index.md

* Added file README.md

* fixed changelog

README.md

@@ -60,7 +60,7 @@ Source: https://github.com/cncf/artwork/tree/master/projects/kubernetes/certifie
 
 | Release | Manifest | Kubernetes Version |
 | --- | --- | --- |
-| 20 | [v1-23-eks-20](https://distro.eks.amazonaws.com/kubernetes-1-23/kubernetes-1-23-eks-20.yaml) | [v1.23.17](https://github.com/kubernetes/kubernetes/release/tag/v1.23.17) |
+| 21 | [v1-23-eks-21](https://distro.eks.amazonaws.com/kubernetes-1-23/kubernetes-1-23-eks-21.yaml) | [v1.23.17](https://github.com/kubernetes/kubernetes/release/tag/v1.23.17) |
 
 ### Kubernetes 1-22
 

docs/contents/index.md

@@ -159,6 +159,7 @@ if you are interested in the AL2 container runtime kernel version.
 * [v1-24-eks-1](releases/1-24/1/index.md) (October 10, 2022)
 
 #### EKS-D 1.23 Version Dependencies
+* [v1-23-eks-21](releases/1-23/21/index.md) (April 27, 2023)
 * [v1-23-eks-20](releases/1-23/20/index.md) (April 13, 2023)
 * [v1-23-eks-19](releases/1-23/19/index.md) (March 29, 2023)
 * [v1-23-eks-18](releases/1-23/18/index.md) (March 16, 2023)

docs/contents/releases/1-23/21/CHANGELOG-v1-23-eks-21.md

@@ -0,0 +1,15 @@
+# Changelog for v1-23-eks-21
+
+This changelog highlights the changes for [v1-23-eks-21](https://github.com/aws/eks-distro/tree/v1-23-eks-21).
+
+## Changes
+
+### Patches
+No changes since last release
+
+### Projects
+* Bump iam-authenticator version for 1.22-1.24 to v0.5.17 ([1958](https://github.com/aws/eks-distro/pull/1958))
+
+### Base Image
+No changes since last release
+

docs/contents/releases/1-23/21/index.md

@@ -0,0 +1,29 @@
+# EKS-D v1-23-eks-21 Release
+
+For additional information, see the [changelog](CHANGELOG-v1-23-eks-21.md) for this release.
+
+## Release Manifest
+
+Download the release manifest here: [kubernetes-1-23-eks-21.yaml](https://distro.eks.amazonaws.com/kubernetes-1-23/kubernetes-1-23-eks-21.yaml)
+
+| Name | Version | URI |
+|------|---------|-----|
+| aws-iam-authenticator | v0.5.17 | public.ecr.aws/eks-distro/kubernetes-sigs/aws-iam-authenticator:v0.5.17-eks-1-23-21 |
+| coredns | v1.8.7 | public.ecr.aws/eks-distro/coredns/coredns:v1.8.7-eks-1-23-21 |
+| csi-snapshotter | v6.2.1 | public.ecr.aws/eks-distro/kubernetes-csi/external-snapshotter/csi-snapshotter:v6.2.1-eks-1-23-21 |
+| etcd | v3.5.7 | public.ecr.aws/eks-distro/etcd-io/etcd:v3.5.7-eks-1-23-21 |
+| external-attacher | v4.2.0 | public.ecr.aws/eks-distro/kubernetes-csi/external-attacher:v4.2.0-eks-1-23-21 |
+| external-provisioner | v3.4.1 | public.ecr.aws/eks-distro/kubernetes-csi/external-provisioner:v3.4.1-eks-1-23-21 |
+| external-resizer | v1.7.0 | public.ecr.aws/eks-distro/kubernetes-csi/external-resizer:v1.7.0-eks-1-23-21 |
+| go-runner | v0.13.0 | public.ecr.aws/eks-distro/kubernetes/go-runner:v0.13.0-eks-1-23-21 |
+| kube-apiserver | v1.23.17 | public.ecr.aws/eks-distro/kubernetes/kube-apiserver:v1.23.17-eks-1-23-21 |
+| kube-controller-manager | v1.23.17 | public.ecr.aws/eks-distro/kubernetes/kube-controller-manager:v1.23.17-eks-1-23-21 |
+| kube-proxy | v1.23.17 | public.ecr.aws/eks-distro/kubernetes/kube-proxy:v1.23.17-eks-1-23-21 |
+| kube-proxy-base | v0.13.0 | public.ecr.aws/eks-distro/kubernetes/kube-proxy-base:v0.13.0-eks-1-23-21 |
+| kube-scheduler | v1.23.17 | public.ecr.aws/eks-distro/kubernetes/kube-scheduler:v1.23.17-eks-1-23-21 |
+| livenessprobe | v2.9.0 | public.ecr.aws/eks-distro/kubernetes-csi/livenessprobe:v2.9.0-eks-1-23-21 |
+| metrics-server | v0.6.3 | public.ecr.aws/eks-distro/kubernetes-sigs/metrics-server:v0.6.3-eks-1-23-21 |
+| node-driver-registrar | v2.7.0 | public.ecr.aws/eks-distro/kubernetes-csi/node-driver-registrar:v2.7.0-eks-1-23-21 |
+| pause | v1.23.17 | public.ecr.aws/eks-distro/kubernetes/pause:v1.23.17-eks-1-23-21 |
+| snapshot-controller | v6.2.1 | public.ecr.aws/eks-distro/kubernetes-csi/external-snapshotter/snapshot-controller:v6.2.1-eks-1-23-21 |
+| snapshot-validation-webhook | v6.2.1 | public.ecr.aws/eks-distro/kubernetes-csi/external-snapshotter/snapshot-validation-webhook:v6.2.1-eks-1-23-21 |

docs/contents/releases/1-23/21/release-announcement.txt

@@ -0,0 +1,2 @@
+Amazon EKS Distro v1-23-eks-21 is now available. Builds are available through ECR Public Gallery (https://gallery.ecr.aws/eks-distro). The changelog and release manifest are available on GitHub (https://github.com/aws/eks-distro/releases).
+