在KubeSphere中创建一个定时job以备份etcd

mrz001

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要在KubeSphere中创建一个job以备份etcd，您可以定义一个作业资源并指定用于备份etcd的命令。以下是一个简单的etcd备份作业的YAML示例：
apiVersion: batch.kubesphere.io/v1alpha1 kind: Job metadata: name: etcd-backup namespace: default spec: jobConfiguration: tasks: - name: backup-etcd image: bitnami/etcd:3.5.0 command: - /bin/bash - -ce - | ETCD_ENDPOINTS=$(echo "https://"$(kubectl get svc etcd-headless -n kube-system -o jsonpath='{.spec.clusterIP}'):2379) ETCD_CA_CERT=/opt/bitnami/etcd/certs/etcd-ca.crt ETCD_CERT=/opt/bitnami/etcd/certs/etcd.crt ETCD_KEY=/opt/bitnami/etcd/certs/etcd.key BACKUP_DIR=/backup mkdir -p $BACKUP_DIR /opt/bitnami/etcd/bin/etcdctl --endpoints=$ETCD_ENDPOINTS --cacert=$ETCD_CA_CERT --cert=$ETCD_CERT --key=$ETCD_KEY snapshot save $BACKUP_DIR/snapshot.db volumeMounts: - name: etcd-certs mountPath: /opt/bitnami/etcd/certs - name: backup-volume mountPath: /backup volumes: - name: etcd-certs configMap: name: etcd-certs - name: backup-volume hostPath: path: /path/to/your/backup/directory type: DirectoryOrCreate

请注意，您需要根据您的实际环境修改以下内容：

ETCD_ENDPOINTS: 修改为您的etcd服务的端点。

ETCD_CA_CERT, ETCD_CERT, ETCD_KEY: 确保这些路径指向包含etcd证书的正确路径。

backup-volume: 修改为指向您希望存储备份的主机路径的hostPath。

保存这个文件为etcd-backup-job.yaml，然后使用kubectl应用它：

kubectl apply -f etcd-backup-job.yaml
这将创建一个作业，该作业将在默认命名空间中运行并备份etcd数据库。您可以通过KubeSphere的作业页面监控备份作业的状态。

mrz001

apiVersion: batch.kubesphere.io/v1alpha1

kind: Job

metadata:

  name: etcd-backup

  namespace: default

spec:

  jobConfiguration:

    tasks:

    - name: backup-etcd

      image: bitnami/etcd:3.5.0

      command:

      - /bin/bash

      - -ce

- |

        ETCD_ENDPOINTS=$(echo "https://"$(kubectl get svc etcd-headless -n kube-system -o jsonpath='{.spec.clusterIP}'):2379)

        ETCD_CA_CERT=/opt/bitnami/etcd/certs/etcd-ca.crt

        ETCD_CERT=/opt/bitnami/etcd/certs/etcd.crt

        ETCD_KEY=/opt/bitnami/etcd/certs/etcd.key

        BACKUP_DIR=/backup

        mkdir -p $BACKUP_DIR

        /opt/bitnami/etcd/bin/etcdctl --endpoints=$ETCD_ENDPOINTS --cacert=$ETCD_CA_CERT --cert=$ETCD_CERT --key=$ETCD_KEY snapshot save $BACKUP_DIR/snapshot.db

      volumeMounts:

        - name: etcd-certs

          mountPath: /opt/bitnami/etcd/certs

        - name: backup-volume

          mountPath: /backup

  volumes:

    - name: etcd-certs

      configMap:

        name: etcd-certs

    - name: backup-volume

      hostPath:

        path: /path/to/your/backup/directory

        type: DirectoryOrCreate