songtianlun
6d2acdcd1e
- Create a new namespace for the backup system - Implement a cron job for scheduled backups - Add a daemon set to handle backup tasks across nodes - Introduce necessary service accounts, roles, and role bindings - Include environment variable handling and configuration via secrets and config maps - Ensure triggering and execution workflow for backups is efficient This commit establishes a new backup system that utilizes both a cron job and a daemon set to automate backups. It organizes the configurations and credentials needed for S3-compatible storage, allowing for seamless backup management across the specified nodes in the Kubernetes cluster.
141 lines
3.6 KiB
YAML
141 lines
3.6 KiB
YAML
---
|
|
apiVersion: apps/v1
|
|
kind: DaemonSet
|
|
metadata:
|
|
name: node-backup-daemon
|
|
namespace: backup-system
|
|
spec:
|
|
selector:
|
|
matchLabels:
|
|
app: node-backup
|
|
template:
|
|
metadata:
|
|
labels:
|
|
app: node-backup
|
|
spec:
|
|
nodeSelector:
|
|
kubernetes.io/hostname: "vkvm-us1"
|
|
containers:
|
|
- name: backup-container
|
|
image: minio/mc:latest
|
|
imagePullPolicy: IfNotPresent
|
|
command:
|
|
- /bin/sh
|
|
- -c
|
|
- |
|
|
# 添加依赖的工具
|
|
apk add --no-cache jq bash findutils tar curl
|
|
|
|
# 等待触发备份
|
|
while true; do
|
|
if [ "$(curl -s -H "Authorization: Bearer $(cat /var/run/secrets/kubernetes.io/serviceaccount/token)" \
|
|
https://kubernetes.default.svc/apis/apps/v1/namespaces/backup-system/daemonsets/node-backup-daemon \
|
|
--cacert /var/run/secrets/kubernetes.io/serviceaccount/ca.crt \
|
|
-X GET | jq -r '.metadata.labels["trigger-backup"]')" = "true" ]; then
|
|
echo "备份触发，执行备份脚本..."
|
|
bash /scripts/backup.sh
|
|
echo "备份完成"
|
|
fi
|
|
date
|
|
# 每分钟检查一次
|
|
sleep 60
|
|
done
|
|
env:
|
|
- name: MINIO_ENDPOINT
|
|
valueFrom:
|
|
secretKeyRef:
|
|
name: minio-credentials
|
|
key: endpoint
|
|
- name: MINIO_ACCESS_KEY
|
|
valueFrom:
|
|
secretKeyRef:
|
|
name: minio-credentials
|
|
key: access-key
|
|
- name: MINIO_SECRET_KEY
|
|
valueFrom:
|
|
secretKeyRef:
|
|
name: minio-credentials
|
|
key: secret-key
|
|
- name: MINIO_BUCKET
|
|
valueFrom:
|
|
secretKeyRef:
|
|
name: minio-credentials
|
|
key: bucket
|
|
- name: MINIO_SUBPATH
|
|
valueFrom:
|
|
configMapKeyRef:
|
|
name: backup-config
|
|
key: subpath
|
|
optional: true
|
|
- name: BACKUPS_TO_KEEP
|
|
valueFrom:
|
|
configMapKeyRef:
|
|
name: backup-config
|
|
key: backups-to-keep
|
|
optional: true
|
|
volumeMounts:
|
|
- name: host-data
|
|
mountPath: /data
|
|
- name: scripts
|
|
mountPath: /scripts
|
|
volumes:
|
|
- name: host-data
|
|
hostPath:
|
|
path: /data
|
|
- name: scripts
|
|
configMap:
|
|
name: backup-script
|
|
defaultMode: 0755
|
|
---
|
|
apiVersion: v1
|
|
kind: Secret
|
|
metadata:
|
|
name: minio-credentials
|
|
namespace: backup-system
|
|
type: Opaque
|
|
data:
|
|
# 这些值需要使用base64编码替换
|
|
endpoint: aHR0cHM6Ly9hcGkubWluaW8uc2t5Ynl0ZS5tZQ== # https://api.minio.skybyte.me
|
|
access-key: RVZuWFViR2xld2t0dFF0em9XUWs= # EVnXUbGlewkttQtzoWQk
|
|
secret-key: THNxVFRmc0VEVzBFY3Buc09aOUxyTnhwc21zajdIMGxlR2R0WHBwRg== # LsqTTfsEDW0EcpnsOZ9LrNxpsmsj7H0leGdtXppF
|
|
bucket: YmFja3Vwcw== # backups
|
|
---
|
|
apiVersion: v1
|
|
kind: ConfigMap
|
|
metadata:
|
|
name: backup-config
|
|
namespace: backup-system
|
|
data:
|
|
subpath: "backups"
|
|
backups-to-keep: "3"
|
|
---
|
|
apiVersion: v1
|
|
kind: ServiceAccount
|
|
metadata:
|
|
name: backup-service-account
|
|
namespace: backup-system
|
|
---
|
|
apiVersion: rbac.authorization.k8s.io/v1
|
|
kind: Role
|
|
metadata:
|
|
name: backup-role
|
|
namespace: backup-system
|
|
rules:
|
|
- apiGroups: ["apps"]
|
|
resources: ["daemonsets"]
|
|
verbs: ["get", "patch", "update"]
|
|
---
|
|
apiVersion: rbac.authorization.k8s.io/v1
|
|
kind: RoleBinding
|
|
metadata:
|
|
name: backup-role-binding
|
|
namespace: backup-system
|
|
subjects:
|
|
- kind: ServiceAccount
|
|
name: backup-service-account
|
|
namespace: backup-system
|
|
roleRef:
|
|
kind: Role
|
|
name: backup-role
|
|
apiGroup: rbac.authorization.k8s.io
|