SRE文档

深浅模式

备份资源类型列表 ​

RESOURCES=(

"pods"

"services"

"deployments"

"configmaps"

"secrets"

"persistentvolumeclaims"

"statefulsets"

"daemonsets"

"replicasets")

bash
#!/bin/bash
###
 # @Description: 一键备份K8s集群YAML文件脚本
 # @Author: hanxiong
 # @Mail: nnaigos@gmail.com
 # @Date: 2024-05-27 10:54:24
 # @LastEditTime: 2024-05-27 10:54:24
 # @LastEditors: hanxiong
###

# 定时任务示例
# 0 0 */1 * * /usr/bin/bash /data/scritps/k8s-yaml-all-bak/k8s_yaml_backup.sh > /data/scritps/k8s-yaml-all-bak/yaml_bak.logs 2>&1

set -o nounset                              # Treat unset variables as an error
# 当前时间
DATE=$(date +%Y-%m-%d--%H-%M-%S)

# 备份路径
K8S_YAML_BACKUP_DIR="/data/backup/k8s_yaml_bak"

# 脚本存放目录
K8S_YAML_SHELL_DIR="/data/scritps/k8s-yaml-all-bak"

# 创建备份目录
if [ ! -d $K8S_YAML_BACKUP_DIR ];then
   mkdir -p $K8S_YAML_BACKUP_DIR
fi

# 资源类型列表
RESOURCES=("pods" "services" "deployments" "configmaps" "secrets" "persistentvolumeclaims" "statefulsets" "daemonsets" "replicasets")

# 每次备份单独创建一个家目录+时间
mkdir -p ${K8S_YAML_BACKUP_DIR}/k8s-${DATE}

# 获取家目录
GET_HOME_DIR=$(ls -l ${K8S_YAML_BACKUP_DIR} | tail -n 1 | awk '{print $9}')

echo "备份路径：$K8S_YAML_BACKUP_DIR/$GET_HOME_DIR"

# 获取k8s名称空间
NAMESPACE=$(kubectl get ns | awk '{print $1}' | tail -n +2)

DumpYaml(){
        # 遍历NS
        for NS in $NAMESPACE ;do
          # 创建NS备份目录
          mkdir -p ${K8S_YAML_BACKUP_DIR}/${GET_HOME_DIR}/${NS}

          # 过滤NS(kube-public、kube-system)
          if [[ $NS != "kube-public" && $NS != "kube-system" && $NS != "csdr" && $NS != "kube-node-lease" ]]; then
             # 遍历k8s资源
             for RESOURCE in ${RESOURCES[@]}; do
              # 创建资源目录
              mkdir -p ${K8S_YAML_BACKUP_DIR}/${GET_HOME_DIR}/${NS}/${RESOURCE}

              # 遍历对应资源名称
               for RESOURCE_NAME in $(kubectl get $RESOURCE -n $NS | awk '{print $1}' | tail -n +2);do
                  DATE_YAML=$(date +%Y-%m-%d--%H:%M:%S)
                  echo "${DATE_YAML} 导出YAML: ${NS} ${RESOURCE} ${RESOURCE_NAME} "
                  # 导出对应名称空间下对应资源的yaml
                  kubectl get ${RESOURCE} ${RESOURCE_NAME} -n ${NS} -o yaml > ${K8S_YAML_BACKUP_DIR}/${GET_HOME_DIR}/${NS}/${RESOURCE}/${RESOURCE_NAME}.yaml
                  echo ""
               done
             done
          fi
        done
}

DelYaml(){
        for DIR_NAME in $(find ${K8S_YAML_BACKUP_DIR} -type d -mtime +7);do
          DATE_YAML=$(date +%Y-%m-%d--%H:%M:%S)
          echo "${DATE_YAML} 删除：$DIR_NAME" > ${K8S_YAML_SHELL_DIR}/del-yaml.logs
          rm -rf ${DIR_NAME}  >> ${K8S_YAML_SHELL_DIR}/del-yaml.logs
          echo ""  >> ${K8S_YAML_SHELL_DIR}/del-yaml.logs
        done
}

DumpYaml
DelYaml
#!/bin/bash
###
 # @Description: 一键备份K8s集群YAML文件脚本
 # @Author: hanxiong
 # @Mail: nnaigos@gmail.com
 # @Date: 2024-05-27 10:54:24
 # @LastEditTime: 2024-05-27 10:54:24
 # @LastEditors: hanxiong
###

# 定时任务示例
# 0 0 */1 * * /usr/bin/bash /data/scritps/k8s-yaml-all-bak/k8s_yaml_backup.sh > /data/scritps/k8s-yaml-all-bak/yaml_bak.logs 2>&1

set -o nounset                              # Treat unset variables as an error
# 当前时间
DATE=$(date +%Y-%m-%d--%H-%M-%S)

# 备份路径
K8S_YAML_BACKUP_DIR="/data/backup/k8s_yaml_bak"

# 脚本存放目录
K8S_YAML_SHELL_DIR="/data/scritps/k8s-yaml-all-bak"

# 创建备份目录
if [ ! -d $K8S_YAML_BACKUP_DIR ];then
   mkdir -p $K8S_YAML_BACKUP_DIR
fi

# 资源类型列表
RESOURCES=("pods" "services" "deployments" "configmaps" "secrets" "persistentvolumeclaims" "statefulsets" "daemonsets" "replicasets")

# 每次备份单独创建一个家目录+时间
mkdir -p ${K8S_YAML_BACKUP_DIR}/k8s-${DATE}

# 获取家目录
GET_HOME_DIR=$(ls -l ${K8S_YAML_BACKUP_DIR} | tail -n 1 | awk '{print $9}')

echo "备份路径：$K8S_YAML_BACKUP_DIR/$GET_HOME_DIR"

# 获取k8s名称空间
NAMESPACE=$(kubectl get ns | awk '{print $1}' | tail -n +2)

DumpYaml(){
        # 遍历NS
        for NS in $NAMESPACE ;do
          # 创建NS备份目录
          mkdir -p ${K8S_YAML_BACKUP_DIR}/${GET_HOME_DIR}/${NS}

          # 过滤NS(kube-public、kube-system)
          if [[ $NS != "kube-public" && $NS != "kube-system" && $NS != "csdr" && $NS != "kube-node-lease" ]]; then
             # 遍历k8s资源
             for RESOURCE in ${RESOURCES[@]}; do
              # 创建资源目录
              mkdir -p ${K8S_YAML_BACKUP_DIR}/${GET_HOME_DIR}/${NS}/${RESOURCE}

              # 遍历对应资源名称
               for RESOURCE_NAME in $(kubectl get $RESOURCE -n $NS | awk '{print $1}' | tail -n +2);do
                  DATE_YAML=$(date +%Y-%m-%d--%H:%M:%S)
                  echo "${DATE_YAML} 导出YAML: ${NS} ${RESOURCE} ${RESOURCE_NAME} "
                  # 导出对应名称空间下对应资源的yaml
                  kubectl get ${RESOURCE} ${RESOURCE_NAME} -n ${NS} -o yaml > ${K8S_YAML_BACKUP_DIR}/${GET_HOME_DIR}/${NS}/${RESOURCE}/${RESOURCE_NAME}.yaml
                  echo ""
               done
             done
          fi
        done
}

DelYaml(){
        for DIR_NAME in $(find ${K8S_YAML_BACKUP_DIR} -type d -mtime +7);do
          DATE_YAML=$(date +%Y-%m-%d--%H:%M:%S)
          echo "${DATE_YAML} 删除：$DIR_NAME" > ${K8S_YAML_SHELL_DIR}/del-yaml.logs
          rm -rf ${DIR_NAME}  >> ${K8S_YAML_SHELL_DIR}/del-yaml.logs
          echo ""  >> ${K8S_YAML_SHELL_DIR}/del-yaml.logs
        done
}

DumpYaml
DelYaml