62 lines
2.1 KiB
Bash
Executable File
62 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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source .utils
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set -e
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WEBHOOK_TYPE="mutating"
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print_usage() {
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blue "kube-disable-webhook - Disabled a webhook by modifying the namespace selector"
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echo " "
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underline "Usage:"
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echo "kube-disable-webhook [options] NAME"
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echo " "
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underline "Options:"
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echo "-h, --help show this help text"
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echo "-t, --type the type of webhook [mutating (default), validating]"
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}
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while test $# -gt 0; do
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case "$1" in
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-t|--type)
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shift
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WEBHOOK_TYPE=$1
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shift
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;;
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-h|--help)
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print_usage
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exit 0
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;;
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*)
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break
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;;
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esac
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done
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NAME=${1}
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FAKE_SELECTOR='"namespaceSelector":{"matchExpressions":[{"key":"disabled","operator":"In","values":["webhook"]}]}'
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if [[ "${WEBHOOK_TYPE}" == "mutating" ]]; then
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printf "🚫 Disabling mutating webhook ${NAME}..."
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kubectl annotate mutatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} previous-state="$(kubectl get mutatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} -o json)" &>/dev/null
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HOOKS=$(kubectl get mutatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} -o go-template='{{range .webhooks}}{{.name}}{{"\n"}}{{end}}')
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for HOOK in ${HOOKS}
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do
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kubectl patch mutatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} -p '{"webhooks": [{"name": "'${HOOK}'", '${FAKE_SELECTOR}'}]}' 1>/dev/null
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done
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printf " ✅ Done"
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elif [[ "${WEBHOOK_TYPE}" == "validating" ]]; then
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printf "🚫 Disabling validating webhook ${NAME}..."
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kubectl annotate validatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} previous-state="$(kubectl get validatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} -o json)" &>/dev/null
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HOOKS=$(kubectl get validatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} -o go-template='{{range .webhooks}}{{.name}}{{"\n"}}{{end}}')
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for HOOK in ${HOOKS}
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do
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kubectl patch validatingwebhookconfigurations.admissionregistration.k8s.io ${NAME} -p '{"webhooks": [{"name": "'${HOOK}'", '${FAKE_SELECTOR}'}]}' 1>/dev/null
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done
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printf " ✅ Done"
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else
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echo "Unknown webhook type"
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exit 1
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fi
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