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Add cleanup scripts.
Signed-off-by: Kurt Garloff <kurt@garloff.de>
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Lines changed: 81 additions & 12 deletions

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‎16-cleanup-cluster.sh‎

Lines changed: 79 additions & 4 deletions
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#!/bin/bash
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set -e
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# Create 16-cleanup-cluster.sh script
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echo "Cleaning cluster not yet implemented."
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echo "Hint: Please delete Loadbalancers and persistent volumes before deleting cluster."
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# Cleaning up inside cluster
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# We need to remove the LB and Storage resources
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if test -n "$1"; then
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SET="$1"
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else
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if test -e cluster-settings.env; then SET=cluster-settings.env;
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else echo "You need to pass a cluster-settings.env file as parameter"; exit 1
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fi
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fi
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# Read settings -- make sure you can trust it
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source "$SET"
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kubectl get cluster -A
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KCFG=~/.kube/$CS_NAMESPACE.$CL_NAME
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export KUBECONFIG=$KCFG
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# This is from KaaS v1, thanks for Roman, Matej, ...
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echo "Cleaning cluster -n $CS_NAMESPACE $CL_NAME"
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# We could prevent the creation of new pods and PVs
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# Cordoning all nodes
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echo "Note: NOT cordoning all nodes ..."
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#kubectl get nodes -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl cordon '}{.metadata.name}{'\n'}{end}" | bash
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# Delete storage classes (prevents creation of new PVs)
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echo "Note: NOT deleting storage classes ..."
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#kubectl get storageclasses -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete storageclass '}{.metadata.name}{' --ignore-not-found=true\n'}{end}" | bash
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# Delete nginx ingress
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INPODS=$(kubectl --namespace ingress-nginx get pods)
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if echo "$INPODS" | grep nginx >/dev/null 2>&1; then
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echo -en " Delete ingress \n "
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timeout 150 kubectl delete -f ~/${CLUSTER_NAME}/deployed-manifests.d/nginx-ingress.yaml
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fi
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# Delete deployments with persistent volume claims
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echo "Deleting deployments with persistent volume claims ..."
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kubectl get deployments --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[?(@.spec.template.spec.volumes[*].persistentVolumeClaim.claimName)]}{'kubectl delete deployment '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete daemonsets with persistent volume claims
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echo "Deleting daemonsets with persistent volume claims ..."
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kubectl get daemonsets --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[?(@.spec.template.spec.volumes[*].persistentVolumeClaim.claimName)]}{'kubectl delete daemonset '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete statefulsets with persistent volume claims
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echo "Deleting statefulsets with persistent volume claims ..."
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kubectl get statefulsets --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[?(@.spec.template.spec.volumes[*].persistentVolumeClaim.claimName)]}{'kubectl delete statefulset '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete all CronJobs
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echo "Deleting all CronJobs ..."
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kubectl get cronjobs --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete cronjob '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --force\n'}{end}" | bash
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# Delete all Jobs
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echo "Deleting all Jobs ..."
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kubectl get jobs --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl $KCONTEXT delete job '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --force\n'}{end}" | bash
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# Delete pods with persistent volume claims
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echo "Deleting pods with persistent volume claims ..."
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kubectl get pods --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[?(@.spec.volumes[*].persistentVolumeClaim.claimName)]}{'kubectl $KCONTEXT delete pod '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete persistent volume claims
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echo "Delete persistent volume claims"
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kubectl get pvc --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete pvc '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true --wait\n'}{end}" | bash
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# Delete Persistent Volumes
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echo "Deleting all Persistent Volumes..."
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kubectl get pv -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl $KCONTEXT delete pv '}{.metadata.name}{' --grace-period=0 --ignore-not-found=true --wait\n'}{end}" | bash
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# Delete all Ingress
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echo "Deleting all Ingress ..."
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kubectl get ingress --all-namespaces -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete ingress '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete all deployments
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echo "Deleting all deployments (but kube-system) ..."
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kubectl get deployments --all-namespaces --field-selector metadata.namespace!=kube-system -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete deployment '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete all daemonsets - avoid hitting OCCM, CSI
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echo "Deleting all daemonsets (but kube-system) ..."
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kubectl get daemonsets --all-namespaces --field-selector metadata.namespace!=kube-system -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete daemonset '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete all statefulsets - avoid hitting OCCM, CSI
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echo "Deleting all statefulsets (but kube-system) ..."
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kubectl get statefulsets --all-namespaces --field-selector metadata.namespace!=kube-system -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl $KCONTEXT delete statefulset '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete all Services (except `kubernetes` service in `default` namespace)
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echo "Deleting all Services (but kube-system, kubernetes) ..."
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kubectl get services --all-namespaces --field-selector metadata.namespace!=kube-system,metadata.name!=kubernetes -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl delete service '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# Delete workload pods
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echo "Deleting pods (but kube-system) ..."
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kubectl get pods --all-namespaces --field-selector metadata.namespace!=kube-system -o=jsonpath="{'set -x\n'}{range .items[*]}{'kubectl $KCONTEXT delete pod '}{.metadata.name}{' -n '}{.metadata.namespace}{' --grace-period=0 --ignore-not-found=true\n'}{end}" | bash
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# TODO:
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# - Delete ingress-nginx config map and secret and ingressclass
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# - Delete helm release secret
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echo "# Note: You may need to delete a helm secret to be able to install ingress-nginx via helm again"
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kubectl get secrets -A
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# DONE
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echo "Cluster should be empty now and ready for deletion"
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kubectl get pods -A

‎17-delete-cluster.sh‎

Lines changed: 2 additions & 8 deletions
Original file line numberDiff line numberDiff line change
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#!/bin/bash
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set -e
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# We need settings
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unset KUBECONFIG
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if test -n "$1"; then
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SET="$1"
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else
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# Read settings -- make sure you can trust it
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source "$SET"
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# Sanity checks
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if test -z "$CS_MAINVER"; then echo "Configure CS_MAINVER"; exit 2; fi
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if test -z "$CS_VERSION"; then echo "Configure CS_VERSION"; exit 3; fi
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if test -z "$CL_PATCHVER"; then echo "Configure CL_PATCHVER"; exit 4; fi
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if test -z "$CS_NAMESPACE"; then echo "Configure CS_NAMESPACE"; exit 2; fi
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if test -z "$CL_NAME"; then echo "Configure CL_NAME"; exit 5; fi
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if test -z "$CL_PODCIDR"; then echo "Configure CL_PODCIDR"; exit 6; fi
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if test -z "$CL_SVCCIDR"; then echo "Configure CL_SVCCIDR"; exit 7; fi
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if test -z "$CL_CTRLNODES"; then echo "Configure CL_CTRLNODES"; exit 8; fi
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if test -z "$CL_WRKRNODES"; then echo "Configure CL_WRKRNODES"; exit 9; fi
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# Delete Cluster
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kubectl delete -n "$CS_NAMESPACE" cluster "$CL_NAME"

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