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etcd-backup-restore.yaml
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etcd-backup-restore.yaml
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---
apiVersion: v1
kind: ConfigMap
metadata:
name: ${CLUSTER_NAME}-etcd-backup-restore-addon
data:
etcd-backup-restore-statefulset.yaml: |
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: etcd-backup
namespace: kube-system
spec:
selector:
matchLabels:
app.kubernetes.io/name: etcd
updateStrategy:
type: RollingUpdate
template:
metadata:
labels:
app.kubernetes.io/name: etcd
spec:
initContainers:
- name: create-creds-file
image: busybox
command:
- ash
- -c
- |
cat << EOF > /data/credentials-file
{
"accessKeyID": "$${AWS_ACCESS_KEY_ID}",
"secretAccessKey": "$${AWS_SECRET_ACCESS_KEY}",
"region": "$${AWS_REGION}",
"endpoint": "$${AWS_ENDPOINT#*$$BUCKET_NAME.}",
"sseCustomerKey": "$${AWS_SSE_CUSTOMER_KEY}",
"sseCustomerAlgorithm": "AES256"
}
EOF
volumeMounts:
- name: data-volume
mountPath: /data
env:
- name: "AWS_REGION"
valueFrom:
secretKeyRef:
name: etcd-backup
key: "bucket_region"
- name: "BUCKET_NAME"
valueFrom:
secretKeyRef:
name: etcd-backup
key: "bucket_name"
- name: "AWS_ENDPOINT"
valueFrom:
secretKeyRef:
name: etcd-backup
key: "bucket_endpoint"
- name: "AWS_ACCESS_KEY_ID"
valueFrom:
secretKeyRef:
name: etcd-backup
key: "access_key_rw"
- name: "AWS_SECRET_ACCESS_KEY"
valueFrom:
secretKeyRef:
name: etcd-backup
key: "secret_key_rw"
- name: "AWS_SSE_CUSTOMER_KEY"
valueFrom:
secretKeyRef:
name: sse-key
key: sse-key
containers:
- name: backup-restore
command:
- /etcdbrctl
- snapshot
- --schedule=${ETCD_BACKUP_SCHEDULE:=0 0 * * *}
- --garbage-collection-period=1m
- --storage-provider=S3
- --store-prefix=etcd-backup
- --insecure-transport=true
- --insecure-skip-tls-verify=true
- --endpoints=https://127.0.0.1:2379
- --defragmentation-schedule=0 0 */3 * *
- --etcd-connection-timeout=30s
- --delta-snapshot-period=60s
- --delta-snapshot-memory-limit=104857600
- --compress-snapshots=true
- --compression-policy=gzip
- --cacert=${CERTPATH}/etcd/${CACERTFILE}
- --cert=${CERTPATH}/etcd/${CERTFILE}
- --key=${CERTPATH}/etcd/${KEYFILE}
image: ${ETCDBR_IMAGE:-europe-docker.pkg.dev/gardener-project/releases/gardener/etcdbrctl:v0.28.0}
securityContext:
allowPrivilegeEscalation: false
runAsUser: 0
imagePullPolicy: Always
ports:
- containerPort: 8080
name: server
protocol: TCP
resources:
limits:
cpu: 100m
memory: 1Gi
requests:
cpu: 23m
memory: 128Mi
env:
- name: AWS_APPLICATION_CREDENTIALS_JSON
value: /home/.aws/credentials-file
- name: STORAGE_CONTAINER
valueFrom:
secretKeyRef:
name: etcd-backup
key: "bucket_name"
volumeMounts:
- mountPath: ${CERTPATH}
name: k8s-certs
readOnly: true
- name: data-volume
mountPath: /home/.aws/
readOnly: true
hostNetwork: true
volumes:
- hostPath:
path: ${CERTPATH}
type: DirectoryOrCreate
name: k8s-certs
- name: data-volume
emptyDir: {}
tolerations:
- key: node-role.kubernetes.io/control-plane
effect: NoSchedule
---
apiVersion: addons.cluster.x-k8s.io/v1beta1
kind: ClusterResourceSet
metadata:
name: ${CLUSTER_NAME}-etcd-backup-restore
spec:
clusterSelector:
matchLabels:
etcd-backup: "true"
cluster: ${CLUSTER_NAME}
resources:
- kind: ConfigMap
name: ${CLUSTER_NAME}-etcd-backup-restore-addon
strategy: ApplyOnce