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Added a kube-empty-namespace helper

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Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>
This commit is contained in:
Marcus Noble 2024-09-19 09:54:39 +01:00
parent aab2b2a52f
commit 74888271aa
Signed by: AverageMarcus
GPG Key ID: B8F2DB8A7AEBAF78
2 changed files with 105 additions and 4 deletions
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94
home/.bin/kube-empty-namespace Executable file
View File

@ -0,0 +1,94 @@
#!/usr/bin/env bash
source .utils
set -e
NAMESPACE=""
CONTEXT="$(kubectl config current-context)"
print_usage() {
blue "kube-empty-namespace - Force delete all resources in the provided namespace"
echo " "
underline "Usage:"
echo "kube-empty-namespace"
echo " "
underline "Options:"
echo "-h, --help show this help text"
echo " --context sets the context from the kubeconfig to use"
echo "-n, --namespace the namespace the resources are in (required)"
}
YOLO="0"
POS_ARGS=()
while test $# -gt 0; do
case "$1" in
-n|--namespace)
shift
NAMESPACE=$1
shift
;;
-h|--help)
print_usage
exit 0
;;
--context)
shift
CONTEXT="$1"
shift
;;
--yolo)
YOLO="1"
shift
;;
*)
POS_ARGS+=(`echo $1 | tr '/' ' '`)
shift
;;
esac
done
if [[ "${NAMESPACE}" == "" ]]; then
echo "Please provide the namespace to empty"
exit 1
fi
function deleteResource() {
RES="${1//.v1/}"
kubectl --context "${CONTEXT}" patch -p '{"metadata":{"finalizers":null}}' --type=merge -n ${NAMESPACE} ${RES} 1>/dev/null || printf ""
kubectl --context "${CONTEXT}" delete -n ${NAMESPACE} ${RES} 2>/dev/null || printf ""
}
printf "⚠️ This could leave cloud resources undeleted if finalizers aren't honoured ⚠️\n\n"
RESOURCES=()
if [[ "${YOLO}" == 0 ]]; then
printf "Are you sure you want to force delete all resources in '${NAMESPACE}'? (y/n): "
read CONFIRM
else
echo ""
echo ""
orange "YOLO MODE!!! (What could go wrong?!)"
CONFIRM="y"
fi
if [ "${CONFIRM}" = "y" ]; then
echo ""
echo "💣 OK, I hope you know what you're doing..."
echo "Deleting all resources in namespace '${NAMESPACE}'"
echo ""
NAMES="$(kubectl --context "${CONTEXT}" api-resources --namespaced --verbs list -o name 2>/dev/null | tr '\n' ,)"
RESOURCES=$(kubectl --context "${CONTEXT}" get "${NAMES::${#NAMES}-1}" --ignore-not-found -n ${NAMESPACE} -o go-template='{{range.items}}{{.kind}}.{{.apiVersion}}/{{.metadata.name}}{{"\n"}}{{end}}' 2>/dev/null | tr '[:upper:]' '[:lower:]' | sed -r "s|/(v.+)/|/|g")
IFS='
'
for RESOURCE in ${RESOURCES}
do
deleteResource ${RESOURCE}
done
else
echo "Aborting..."
exit 1
fi

15
home/.bin/kube-force-delete
View File

@ -6,6 +6,7 @@ NAMESPACE="$(kubectl config view --minify --output 'jsonpath={..namespace}' &>/d
set -e
NAMESPACE=${NAMESPACE:-default}
SELECTOR=""
CONTEXT="$(kubectl config current-context)"
print_usage() {
blue "kube-force-delete - Force delete resources, even those with finalizers"
@ -15,6 +16,7 @@ print_usage() {
echo " "
underline "Options:"
echo "-h, --help show this help text"
echo " --context sets the context from the kubeconfig to use"
echo "-n, --namespace the namespace the resource is in (default: current namespace)"
}
@ -37,6 +39,11 @@ while test $# -gt 0; do
print_usage
exit 0
;;
--context)
shift
CONTEXT="$1"
shift
;;
--yolo)
YOLO="1"
shift
@ -60,8 +67,8 @@ fi
function deleteResource() {
RES="${1//.v1/}"
echo "Deleting ${RES}"
kubectl patch -p '{"metadata":{"finalizers":null}}' --type=merge -n ${NAMESPACE} ${RES} 1>/dev/null|| printf ""
kubectl delete -n ${NAMESPACE} ${RES} 2>/dev/null || printf ""
kubectl --context "${CONTEXT}" patch -p '{"metadata":{"finalizers":null}}' --type=merge -n ${NAMESPACE} ${RES} 1>/dev/null|| printf ""
kubectl --context "${CONTEXT}" delete -n ${NAMESPACE} ${RES} 2>/dev/null || printf ""
}
printf "⚠️ This could leave cloud resources undeleted if finalizers aren't honoured ⚠️\n\n"
@ -90,8 +97,8 @@ if [ "${CONFIRM}" = "y" ]; then
if [[ "${SELECTOR}" != "" ]]; then
SELECTOR="-l ${SELECTOR}"
NAMES="$(kubectl api-resources --verbs list -o name 2>/dev/null | tr '\n' ,)"
RESOURCES=$(kubectl get "${NAMES::${#NAMES}-1}" --ignore-not-found ${SELECTOR} -n ${NAMESPACE} -o go-template='{{range.items}}{{.kind}}.{{.apiVersion}}/{{.metadata.name}}{{"\n"}}{{end}}' 2>/dev/null | tr '[:upper:]' '[:lower:]' | sed -r "s|/(v.+)/|/|g")
NAMES="$(kubectl --context "${CONTEXT}" api-resources --verbs list -o name 2>/dev/null | tr '\n' ,)"
RESOURCES=$(kubectl --context "${CONTEXT}" get "${NAMES::${#NAMES}-1}" --ignore-not-found ${SELECTOR} -n ${NAMESPACE} -o go-template='{{range.items}}{{.kind}}.{{.apiVersion}}/{{.metadata.name}}{{"\n"}}{{end}}' 2>/dev/null | tr '[:upper:]' '[:lower:]' | sed -r "s|/(v.+)/|/|g")
fi
IFS='