174 lines
4.5 KiB
YAML
174 lines
4.5 KiB
YAML
apiVersion: v1
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kind: Namespace
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metadata:
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name: backup-system
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---
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apiVersion: batch/v1
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kind: CronJob
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metadata:
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name: node-backup-job
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namespace: backup-system
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spec:
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# 每天凌晨2点运行
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schedule: "0 2 * * *"
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concurrencyPolicy: Forbid
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jobTemplate:
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spec:
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ttlSecondsAfterFinished: 86400 # 1天后删除已完成的任务
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template:
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spec:
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serviceAccountName: backup-service-account
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nodeSelector:
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kubernetes.io/hostname: "vkvm-us1"
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containers:
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- name: backup-trigger
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image: bitnami/kubectl:latest
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command:
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- /bin/sh
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- -c
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- |
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kubectl label daemonset/node-backup-daemon trigger-backup=true --overwrite -n backup-system && \
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sleep 60 && \
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kubectl label daemonset/node-backup-daemon trigger-backup- -n backup-system
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restartPolicy: OnFailure
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---
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: node-backup-daemon
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namespace: backup-system
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spec:
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selector:
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matchLabels:
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app: node-backup
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template:
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metadata:
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labels:
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app: node-backup
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spec:
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nodeSelector:
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kubernetes.io/hostname: "vkvm-us1"
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containers:
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- name: backup-container
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image: minio/mc:latest
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imagePullPolicy: IfNotPresent
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command:
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- /bin/sh
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- -c
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- |
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# 添加依赖的工具
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apk add --no-cache jq bash findutils tar curl
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# 等待触发备份
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while true; do
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if [ "$(curl -s -H "Authorization: Bearer $(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" \
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https://kubernetes.default.svc/apis/apps/v1/namespaces/backup-system/daemonsets/node-backup-daemon \
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--cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt \
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-X GET | jq -r '.metadata.labels["trigger-backup"]')" = "true" ]; then
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echo "备份触发，执行备份脚本..."
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bash /scripts/backup.sh
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echo "备份完成"
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fi
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# 每分钟检查一次
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sleep 60
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done
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env:
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- name: MINIO_ENDPOINT
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valueFrom:
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secretKeyRef:
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name: minio-credentials
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key: endpoint
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- name: MINIO_ACCESS_KEY
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valueFrom:
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secretKeyRef:
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name: minio-credentials
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key: access-key
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- name: MINIO_SECRET_KEY
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valueFrom:
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secretKeyRef:
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name: minio-credentials
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key: secret-key
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- name: MINIO_BUCKET
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valueFrom:
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secretKeyRef:
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name: minio-credentials
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key: bucket
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- name: MINIO_SUBPATH
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valueFrom:
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configMapKeyRef:
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name: backup-config
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key: subpath
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optional: true
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- name: BACKUPS_TO_KEEP
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valueFrom:
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configMapKeyRef:
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name: backup-config
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key: backups-to-keep
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optional: true
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volumeMounts:
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- name: host-data
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mountPath: /data
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- name: scripts
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mountPath: /scripts
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volumes:
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- name: host-data
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hostPath:
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path: /data
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- name: scripts
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configMap:
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name: backup-script
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defaultMode: 0755
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---
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apiVersion: v1
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kind: Secret
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metadata:
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name: minio-credentials
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namespace: backup-system
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type: Opaque
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data:
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# 这些值需要使用base64编码替换
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endpoint: aHR0cHM6Ly9hcGkubWluaW8uc2t5Ynl0ZS5tZQ== # https://api.minio.skybyte.me
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access-key: RVZuWFViR2xld2t0dFF0em9XUWs= # EVnXUbGlewkttQtzoWQk
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secret-key: THNxVFRmc0VEVzBFY3Buc09aOUxyTnhwc21zajdIMGxlR2R0WHBwRg== # LsqTTfsEDW0EcpnsOZ9LrNxpsmsj7H0leGdtXppF
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bucket: YmFja3Vwcw== # backups
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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: backup-config
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namespace: backup-system
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data:
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subpath: "backups"
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backups-to-keep: "3"
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: backup-service-account
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namespace: backup-system
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: Role
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metadata:
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name: backup-role
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namespace: backup-system
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rules:
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- apiGroups: ["apps"]
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resources: ["daemonsets"]
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verbs: ["get", "patch", "update"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: RoleBinding
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metadata:
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name: backup-role-binding
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namespace: backup-system
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subjects:
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- kind: ServiceAccount
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name: backup-service-account
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namespace: backup-system
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roleRef:
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kind: Role
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name: backup-role
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apiGroup: rbac.authorization.k8s.io
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