add scripts to upgrade ubuntu nodes and upgrade k8s cluster [ci skip]

update_k8s.sh

@@ -1,11 +1,11 @@
 #!/usr/bin/env bash
 
 # run for all nodes using :
-# for n in $(kbn | grep 'k8s-node' | awk '{print $1}'); do echo $n; kb drain $n --ignore-daemonsets --delete-emptydir-data; s wizard@$n 'bash -s' <update_k8s_worker.sh; kb uncordon $n; done
+# for n in $(kbn | grep 'k8s-node' | awk '{print $1}'); do echo $n; kb drain $n --ignore-daemonsets --delete-emptydir-data; s wizard@$n 'bash -s' <update_k8s.sh; kb uncordon $n; done
 
 set -e
-export stable_version='1.28'  # change me
-export release="$stable_version.6"  # change me
+export stable_version='1.32'  # change me
+export release="$stable_version.4"  # change me
 
 echo "Upgrading to $stable_version"
 
@@ -15,10 +15,22 @@ curl -fsSL "https://pkgs.k8s.io/core:/stable:/v$stable_version/deb/Release.key"
 
 sudo apt-mark unhold kubeadm kubelet kubectl
 sudo apt-get update 
-sudo apt-get install -y kubeadm="$release-*" kubelet="$release-*" kubectl="$release-*"
+sudo apt-get install -y kubeadm="$release-*" 
+
+HOSTNAME=$(hostname)
+SEARCH_STR="master"
+
+if [[ "$HOSTNAME" == *"$SEARCH_STR"* ]]; then
+    echo "Upgrading master"
+    sudo kubeadm upgrade plan && sudo kubeadm upgrade apply v$release -y
+else
+    echo "Upgrading worker"
+    sudo kubeadm upgrade node 
+fi
+
+sudo apt-get install -y kubelet="$release-*" kubectl="$release-*"
 sudo apt-mark hold kubeadm kubelet kubectl
 
-sudo kubeadm upgrade node # Comment me out for master node; on master run kubeadm upgrade plan && kubeadm upgrade apply
 
 sudo systemctl daemon-reload
 sudo systemctl restart kubelet

update_node.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+# sudo apt update && sudo apt autoremove -y && sudo apt upgrade -y
+sudo do-release-upgrade
+sudo apt update && sudo apt autoremove -y && sudo apt upgrade -y
+
+
+

upgrade-k8s.sh

@@ -1,6 +0,0 @@
-#!/usr/bin/env bash
-
-VERSION=$1
-
-sudo apt update
-sudo apt upgrade kubeadm=$1