add auto upgrade docs

README.md

@@ -24,6 +24,10 @@ A project to store container-based hosting stuff.
     - [Jellyfin](#jellyfin)
     - [Iperf3](#iperf3)
   - [Upgrading](#upgrading)
+    - [Nodes](#nodes)
+    - [K3S](#k3s)
+      - [Automated Upgrades](#automated-upgrades)
+      - [Manual Upgrades](#manual-upgrades)
   - [Create a Userspace](#create-a-userspace)
     - [Quickstart](#quickstart)
     - [Userspace](#userspace)
@@ -625,11 +629,32 @@ helm upgrade --install \
 
 ## Upgrading
 
+### Nodes
+
+```bash
+kubectl drain node1 --ignore-daemonsets --delete-emptydir-data
+watch -n 3 kubectl get pod --all-namespaces -w
+```
+
+### K3S
+
+#### Automated Upgrades
+
+<https://docs.k3s.io/upgrades/automated>
+
+```bash
+kubectl apply -f https://github.com/rancher/system-upgrade-controller/releases/latest/download/system-upgrade-controller.yaml
+kubectl apply -f upgrade-plan.yaml
+kubectl get pod -w -n system-upgrade
+```
+
+#### Manual Upgrades
+
 <https://docs.k3s.io/upgrades/manual#manually-upgrade-k3s-using-the-binary>
 
 ```bash
 sudo su -
-wget https://github.com/k3s-io/k3s/releases/download/v1.28.2%2Bk3s1/k3s
+wget https://github.com/k3s-io/k3s/releases/download/v1.28.3%2Bk3s1/k3s
 systemctl stop k3s
 chmod +x k3s
 mv k3s /usr/local/bin/k3s