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Cluster Upgrades:
=================
primary master:
---------------
VERSION=1.23.1
apt-get update
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubeadm.pref
apt-get install -y "kubeadm=$VERSION-00"
kubeadm version
kubeadm upgrade plan
kubectl drain $(hostname) --ignore-daemonsets --delete-emptydir-data
kubeadm upgrade apply "v$VERSION"
sed "s/^kubernetesVersion: .*$/kubernetesVersion: $VERSION/" -i /etc/kubernetes/kubeadm.config
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubelet.pref
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubectl.pref
apt-get update && apt-get install -y "kubelet=$VERSION-00" "kubectl=$VERSION-00"
// security updates + reboot ?
kubectl uncordon $(hostname)
secondary master:
-----------------
VERSION=1.23.1
apt-get update
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubeadm.pref
apt-get install -y --allow-change-held-packages "kubeadm=$VERSION-00"
kubectl drain $(hostname) --ignore-daemonsets --delete-emptydir-data
kubeadm upgrade node
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubelet.pref
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubectl.pref
apt-get update && apt-get install -y kubelet="$VERSION-00" "kubectl=$VERSION-00"
// security updates + reboot ?
kubectl uncordon $(hostname)
worker nodes:
-------------
VERSION=1.23.1
apt-get update
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubeadm.pref
apt-get install -y "kubeadm=$VERSION-00"
@primary master: kubectl drain <node> --ignore-daemonsets --delete-emptydir-data
kubeadm upgrade node
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubelet.pref
sed "s/^Pin: version .*$/Pin: version $VERSION-00/" -i /etc/apt/preferences.d/kubectl.pref
apt-get update && apt-get install -y kubelet="$VERSION-00" "kubectl=$VERSION-00"
// security updates + reboot ?
@primary master: kubectl uncordon <node>
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