280 new k8s el repos (#281)

* Added new K8s repo changes to kubernetes.md.

* Housekeeping for unused alert templates.

* Adding placeholder for k8s repo change blog post.

* Adding quick blog post on updating SLATE clusters.

* Updated capitalization in 2023-09-11-k8s-community-repos.md.

_docs/cluster/manual/kubernetes.md

@@ -17,20 +17,18 @@ The SLATE platform uses Kubernetes as its container orchestration system. This s
 The Kubernetes repository can be added to the node in the usual way:
 
 ```shell
-cat <<EOF > /etc/yum.repos.d/kubernetes.repo
+export KUBE_VERSION=1.24 && \
+cat <<EOF | tee /etc/yum.repos.d/kubernetes.repo
 [kubernetes]
 name=Kubernetes
-baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
+baseurl=https://pkgs.k8s.io/core:/stable:/v${KUBE_VERSION}/rpm/
 enabled=1
 gpgcheck=1
-repo_gpgcheck=0
-gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
+gpgkey=https://pkgs.k8s.io/core:/stable:/v${KUBE_VERSION}/rpm/repodata/repomd.xml.key
 EOF
 ```
 {:data-add-copy-button='true'}
 
-{% include alert/note.html content="To understand why `repo_gpgcheck=0`, see Google's [Known Issues](https://cloud.google.com/compute/docs/troubleshooting/known-issues#keyexpired) page." %}
-
 The Kubernetes install includes a few different pieces: `kubeadm`, `kubectl`, and `kubelet`.
 
 * `kubeadm` is a tool used to bootstrap Kubernetes clusters
@@ -40,8 +38,7 @@ The Kubernetes install includes a few different pieces: `kubeadm`, `kubectl`, an
 Install and enable these components:
 
 ```shell
-KUBE_VERSION=1.24.* && \
-yum install -y kubeadm-${KUBE_VERSION} kubectl-${KUBE_VERSION} kubelet-${KUBE_VERSION} --disableexcludes=kubernetes
+yum install -y kubeadm kubectl kubelet
 ```
 {:data-add-copy-button='true'}
 

_posts/2023-09-11-k8s-community-repos.md

@@ -0,0 +1,43 @@
+---
+title: "Kubernetes Repo Changes"
+overview: Kubernetes Community Changes Package Repositories
+published: true
+permalink: blog/2023-09-11-k8s-community-repos.html
+attribution: Adam Griffith
+layout: post
+type: markdown
+---
+
+The Kubernetes community has changed to community-owned package repositories. Learn how to update your SLATE Clusters in this blog.
+
+<!--end_excerpt-->
+
+## What Changed?
+
+* [Kubernetes Legacy Package Repositories Will Be Frozen On September 13, 2023](https://kubernetes.io/blog/2023/08/31/legacy-package-repository-deprecation/)
+* [pkgs.k8s.io: Introducing Kubernetes Community-Owned Package Repositories](https://kubernetes.io/blog/2023/08/15/pkgs-k8s-io-introduction/)
+
+## How does this affect us as SLATE Administrators?
+
+The amount of work to change over to the new package repositories is relatively small.
+
+1. SSH to your SLATE Cluster master node.
+
+2. Execute the following to update the package repository file for Kubernetes `1.24.x`.
+
+   ```shell
+   export KUBE_VERSION=1.24 && \
+   cat <<EOF | tee /etc/yum.repos.d/kubernetes.repo
+   [kubernetes]
+   name=Kubernetes
+   baseurl=https://pkgs.k8s.io/core:/stable:/v${KUBE_VERSION}/rpm/
+   enabled=1
+   gpgcheck=1
+   gpgkey=https://pkgs.k8s.io/core:/stable:/v${KUBE_VERSION}/rpm/repodata/repomd.xml.key
+   EOF
+   ```
+   {:data-add-copy-button='true'}
+
+3. Close the connection and repeat the previous command on each of your worker nodes.
+
+4. Continue to update patch versions of the various Kubernetes `1.24.x` packages normally through commands like `yum update ...` or `dnf update ...`.