noschedule_on_edge.sh

#!/bin/bash

NodeSelectorPatchJson='{"spec":{"template":{"spec":{"nodeSelector":{"node-role.kubernetes.io/master": "","node-role.kubernetes.io/worker": ""}}}}}'

NoShedulePatchJson='{"spec":{"template":{"spec":{"affinity":{"nodeAffinity":{"requiredDuringSchedulingIgnoredDuringExecution":{"nodeSelectorTerms":[{"matchExpressions":[{"key":"node-role.kubernetes.io/edge","operator":"DoesNotExist"}]}]}}}}}}}'

for((i=2;i<6;i++));
do
        edgenode="kubesphere-$i"

        namespaces=($(kubectl get pods -A -o wide |egrep -i $edgenode | awk '{print $1}' ))
        pods=($(kubectl get pods -A -o wide |egrep -i $edgenode | awk '{print $2}' ))
        length=${#namespaces[@]}


        for((i=0;i<$length;i++));
        do
                ns=${namespaces[$i]}
                pod=${pods[$i]}
                resources=$(kubectl -n $ns describe pod $pod | grep "Controlled By" |awk '{print $3}')
                echo "Patching for ns:"${namespaces[$i]}",resources:"$resources
                kubectl -n $ns patch $resources --type merge --patch "$NoShedulePatchJson"
                sleep 1
        done
done