60 lines
1.5 KiB
Plaintext
60 lines
1.5 KiB
Plaintext
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#!/usr/bin/env bash
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set -e
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NAMESPACE="$(kubectl config view --minify --output 'jsonpath={..namespace}')"
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LABEL=""
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ALL_NAMESPACES=false
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print_usage() {
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echo "kube-clean-replicasets - Remove all olf ReplicaSets with 0 desired pods"
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echo " "
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echo "kube-clean-replicasets [options]"
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echo " "
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echo "Options:"
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echo "-h, --help show this help text"
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echo "-n, --namespace the namespace the to search in"
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echo "-l, --selector the label selector to match on"
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echo "-A, --all-namespaces match resources in all namespaces (default: false)"
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}
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while test $# -gt 0; do
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case "$1" in
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-n|--namespace)
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shift
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NAMESPACE=$1
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shift
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;;
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-l|--selector)
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shift
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LABEL=$1
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shift
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;;
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-A|--all-namespaces)
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ALL_NAMESPACES=true
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shift
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;;
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-h|--help)
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print_usage
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exit 0
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;;
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*)
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break
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;;
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esac
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done
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if [[ "${LABEL}" != "" ]]; then
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LABEL="-l ${LABEL}"
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fi
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if [ $ALL_NAMESPACES ]; then
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kubectl get replicasets --all-namespaces $LABEL -o jsonpath='{range .items[?(@.status.replicas==0)]}--namespace {@.metadata.namespace} {@.metadata.name};{end}' | \
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tr ";" "\n" | \
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xargs -I {} sh -c "kubectl delete rs {}"
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else
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kubectl get replicasets --namespace $NAMESPACE $LABEL -o jsonpath='{range .items[?(@.status.replicas==0)]}--namespace {@.metadata.namespace} {@.metadata.name};{end}' | \
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tr ";" "\n" | \
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xargs -I {} sh -c "kubectl delete rs {}"
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fi
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