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Kubernetes/Upgrade/readme.md

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+# Recommendations Before Upgrading
+1. Snapshot / Backup your VMs!
+2. Backup data and volumes if necessary
+3. Drain nodes / scale down deployments
+
+# Upgrade Rancher
+```
+helm upgrade rancher rancher-latest/rancher \
+ --namespace cattle-system \
+ --set hostname=rancher.my.org \
+```
+# Upgrade RKE2 (Each node, not Admin!)
+```
+sudo curl -sfL https://get.rke2.io | INSTALL_RKE2_CHANNEL=latest sh -
+```
+then servers:
+```
+sudo systemctl restart rke2-server
+```
+or agents
+```
+sudo systemctl restart rke2-agent
+```
+# Upgrade K3S (Each node, not Admin!)
+```
+sudo curl -sfL https://get.k3s.io | INSTALL_K3S_CHANNEL=latest <EXISTING_K3S_ENV> sh -s - <EXISTING_K3S_ARGS>
+```
+then servers:
+```
+sudo systemctl restart k3s
+```
+or agents
+```
+sudo systemctl restart k3s-agent
+```
+
+# Upgrade Longhorn
+```
+kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v1.5.3/deploy/longhorn.yaml
+```
+
+# Upgrade Metallb
+1. Change version on the delete command to the version you are currently running (e.g., v0.13.11)
+2. Change version on the apply to the new version (e.g., v0.13.12)
+3. Ensure your Lbrange is still the one you want (check ipAddressPool.yaml)
+```
+kubectl delete -f https://raw.githubusercontent.com/metallb/metallb/v0.13.11/config/manifests/metallb-native.yaml
+kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.12/config/manifests/metallb-native.yaml
+kubectl apply -f ipAddressPool.yaml
+kubectl apply -f https://raw.githubusercontent.com/JamesTurland/JimsGarage/main/Kubernetes/RKE2/l2Advertisement.yaml
+```
+
+# Upgrade Kube-VIP
+1. Delete the daemonset in Rancher or use kubectl delete
+2. Redeploy the daemonset with updated values (check kube-vip file)
+```
+kubectl delete -f kube-vip
+kubectl apply -f kube-vip
+```