备份所有的K8S资源（Backup all k8s resources yaml）

backup-k8s.sh

#!/usr/bin/env bash

ROOT=$PWD


# Backup global resources

while read -r resource
do
    echo "  scanning resource '${resource}'"
    while read -r item x
    do
        mkdir -p "${ROOT}/non-namespaced/${resource}"
        echo "    exporting item '${item}'"
        kubectl get "$resource" "$item" -o yaml > "${ROOT}/non-namespaced/${resource}/$item.yaml" &
    done < <(kubectl get  "$resource" --all-namespaces 2>&1  | tail -n +2)
done < <(kubectl api-resources --namespaced=false 2>/dev/null | grep -vE "componentstatuses|nodes|mutatingwebhookconfigurations|validatingwebhookconfigurations|apiservices|tokenreviews|.*subject.*|certificatesigningrequests|runtimeclasses|csi.*|volumeattachments" | tail -n +2 | awk '{print $1}' | sort | uniq)

wait


# Backup namespeced resources

while read -r resource
do
    echo "  scanning resource '${resource}'"
    while read -r namespace item x
    do
        mkdir -p "${ROOT}/${namespace}/${resource}"
        echo "    exporting item '${namespace} ${item}'"
        kubectl get "$resource" -n "$namespace" "$item" -o yaml > "${ROOT}/${namespace}/${resource}/$item.yaml" &
    done < <(kubectl get "$resource" --all-namespaces 2>&1  | tail -n +2)
done < <(kubectl api-resources --namespaced=true 2>/dev/null | grep -vE "events|controllerrevisions|endpoints|replicasets|pods" | tail -n +2 | awk '{print $1}')

wait