mirror of https://github.com/linkerd/linkerd2.git
97 lines
4.1 KiB
Bash
Executable File
97 lines
4.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eu
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k8s_context=${1:-""}
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populate_array() {
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[ $# -ge 3 ] || {
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echo "function ${FUNCNAME[0]} expects 3 mandatory inparameters but got $#
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Usage: ${FUNCNAME[0]} TARGET_ARRAY RESOURCE_TYPE LINKERD_LABEL (FRIENDLY_NAME)" >&2
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return
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}
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# We are using the variable i even if shellsheck does not see it
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# shellcheck disable=SC2034
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local i=0
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unset -v "$1"
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while IFS= read -r "$1[i++]"; do :; done <<< "$(kubectl --context="$k8s_context" get -A "$2" -oname -l "linkerd.io/$3")"
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# ensure that the last element isn't empty
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eval "[[ \${$1[--i]} ]]" || unset "$1[i]" # ensures last element isn't empty
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# inform user if no results were returned from command
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[ -z "$(eval "[[ \${$1[0]} ]]")" ] && echo "no ${4:-$2} found" >&2
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}
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# Initialize empty arrays
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namespaces_controlplane=()
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namespaces_helm=()
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namespaces_cni=()
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namespaces_dataplane=()
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clusterrolebindings=()
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clusterrolebindings_helm=()
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clusterroles=()
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webhookconfigs=()
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validatingconfigs=()
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podsecuritypolicies=()
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customresourcedefinitions=()
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apiservices=()
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rolebindings=()
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echo "cleaning up control-plane namespaces in k8s-context [${k8s_context}]"
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populate_array namespaces_controlplane ns is-control-plane 'control-plane namespaces'
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populate_array namespaces_helm ns is-test-helm 'helm namespaces'
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echo "cleaning up CNI namespaces in k8s-context [${k8s_context}]"
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populate_array namespaces_cni ns cni-resource 'CNI namespaces'
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echo "cleaning up data-plane namespaces in k8s-context [${k8s_context}]"
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populate_array namespaces_dataplane ns is-test-data-plane 'data-plane namespaces'
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populate_array clusterrolebindings clusterrolebindings control-plane-ns
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populate_array clusterrolebindings_helm clusterrolebindings is-test-helm 'helm clusterrolebindings'
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populate_array clusterroles clusterroles control-plane-ns
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populate_array webhookconfigs mutatingwebhookconfigurations control-plane-ns
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populate_array validatingconfigs validatingwebhookconfigurations control-plane-ns
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populate_array podsecuritypolicies podsecuritypolicies control-plane-ns
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populate_array customresourcedefinitions customresourcedefinitions control-plane-ns
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populate_array apiservices apiservices control-plane-ns
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# No action if all arrays are empty
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if [[ ${namespaces_controlplane[*]} || \
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${namespaces_cni[*]} || \
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${namespaces_helm[*]} || \
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${namespaces_dataplane[*]} || \
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${clusterrolebindings[*]} || \
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${clusterrolebindings_helm[*]} || \
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${clusterroles[*]} || \
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${webhookconfigs[*]} || \
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${validatingconfigs[*]} || \
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${podsecuritypolicies[*]} || \
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${customresourcedefinitions[*]} || \
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${apiservices[*]} ]]; then
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kubectl --context="$k8s_context" delete \
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${namespaces_controlplane:+"${namespaces_controlplane[@]}"} \
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${namespaces_cni:+"${namespaces_cni[@]}"} \
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${namespaces_helm:+"${namespaces_helm[@]}"} \
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${namespaces_dataplane:+"${namespaces_dataplane[@]}"} \
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${clusterrolebindings:+"${clusterrolebindings[@]}"} \
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${clusterrolebindings_helm:+"${clusterrolebindings_helm[@]}"} \
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${clusterroles:+"${clusterroles[@]}"} \
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${webhookconfigs:+"${webhookconfigs[@]}"} \
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${validatingconfigs:+"${validatingconfigs[@]}"} \
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${podsecuritypolicies:+"${podsecuritypolicies[@]}"} \
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${customresourcedefinitions:+"${customresourcedefinitions[@]}"} \
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${apiservices:+"${apiservices[@]}"}
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fi
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echo "cleaning up rolebindings in kube-system namespace in k8s-context [${k8s_context}]"
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populate_array rolebindings rolebindings control-plane-ns
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# No action if array is empty
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if [[ ${rolebindings[*]} ]]; then
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kubectl --context="$k8s_context" delete "${rolebindings[@]}" -n kube-system
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fi
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