[backups] Added staggered backups
This PS adds staggered backups possibility by adding anti-affinity rules to backups cronjobs that can be followed across several namespaces to decrease load on remote backup destination server making sure that at every moment in time there is only one backup upload is in progress. Change-Id: I320c6ce6370b45c602114189819a4225e479f680
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@ -15,4 +15,4 @@
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apiVersion: v1
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description: A chart for a DaemonSet-based etcd deployment.
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name: etcd
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version: 0.1.2
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version: 0.1.3
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@ -16,7 +16,10 @@ limitations under the License.
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{{- if .Values.manifests.cron_etcd_backup }}
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{{- $envAll := . }}
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{{- $serviceAccountName := "etcd-backup" }}
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{{- $applicationName := "etcd-backup" }}
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# Strip off "etcd" from service name to get the application name
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# Note that application can either be kubernetes or calico for now
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# and may expand in scope in the future
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{{- $applicationName := .Values.service.name | replace "-etcd" "" }}
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: Role
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@ -74,7 +77,7 @@ spec:
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jobTemplate:
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metadata:
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labels:
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{{ tuple $envAll $applicationName "etcd-anchor" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
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{{ tuple $envAll $applicationName "etcd-backup" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
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annotations:
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{{ dict "envAll" $envAll "podName" "etcd-backup" "containerNames" (list "etcd-backup") | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
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spec:
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@ -83,6 +86,12 @@ spec:
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{{ dict "envAll" $envAll "application" "etcd-backup" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 10 }}
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serviceAccountName: {{ .Values.service.name }}-{{ $serviceAccountName }}
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restartPolicy: OnFailure
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{{- if .Values.pod.etcd_backup }}
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{{- if .Values.pod.etcd_backup.affinity }}
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affinity:
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{{ index .Values.pod.etcd_backup "affinity" | toYaml | indent 12}}
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{{- end }}
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{{- end }}
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nodeSelector:
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{{ .Values.labels.anchor.node_selector_key }}: {{ .Values.labels.anchor.node_selector_value }}
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containers:
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25
charts/etcd/values_override/staggered-backups.yaml
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25
charts/etcd/values_override/staggered-backups.yaml
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@ -0,0 +1,25 @@
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---
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pod:
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labels:
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etcd-backup:
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staggered-backups: enabled
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etcd_backup:
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affinity:
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podAntiAffinity:
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requiredDuringSchedulingIgnoredDuringExecution:
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- labelSelector:
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matchExpressions:
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- key: status.phase
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operator: NotIn
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values:
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- Running
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- key: staggered-backups
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operator: In
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values:
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- enabled
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namespaces:
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- openstack
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- kube-system
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- osh-infra
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topologyKey: kubernetes.io/os
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...
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