feat(backup): add backup support (#26)

---------

Co-authored-by: antoninguyot <[email protected]>

templates/backup.yml

@@ -0,0 +1,51 @@
+{{- if .Values.backup.enabled  | default false -}}
+---
+apiVersion: {{ include "common.capabilities.cronjob.apiVersion" . }}
+kind: CronJob
+metadata:
+  name: {{ template "common.names.fullname" . }}
+  labels: {{- include "horizon.labels.standard" . | nindent 4 }}
+  {{- if .Values.commonLabels }}
+  {{- include "common.tplvalues.render" ( dict "value" .Values.commonLabels "context" $ ) | nindent 4 }}
+  {{- end }}
+  {{- if .Values.backup.labels }}
+  {{- include "common.tplvalues.render" ( dict "value" .Values.backup.labels "context" $ ) | nindent 4 }}
+  {{- end }}
+  {{- if or .Values.commonAnnotations .Values.backup.annotations }}
+  annotations: 
+  {{- if .Values.backup.annotations }}
+  {{- include "common.tplvalues.render" ( dict "value" .Values.backup.annotations "context" $ ) | nindent 4 }}
+  {{- end }}
+  {{- if .Values.commonAnnotations }}
+  {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
+  {{- end }}
+  {{- end }}
+spec:
+  schedule: {{ .Values.backup.schedule | quote }}
+  suspend: {{ .Values.backup.suspended }}
+  concurrencyPolicy: Forbid
+  successfulJobsHistoryLimit: {{ .Values.backup.successfulJobsHistoryLimit }}
+  failedJobsHistoryLimit: {{ .Values.backup.failedJobsHistoryLimit }}
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          containers:
+          - name: backup
+            image: {{ include "common.images.image" (dict "imageRoot" .Values.backup.image "global" .Values.global) }}
+            imagePullPolicy: {{ .Values.backup.imagePullPolicy | default "IfNotPresent" | quote }}
+            command:
+              - backup
+            env:
+              - name: MONGODB_URI
+              {{- include "horizon.mongodbUri" (dict "context" .) | nindent 16 }}
+            {{- with .Values.backup.environment }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
+            {{- with .Values.backup.envFrom }}
+            envFrom: 
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
+            resources: {{- toYaml .Values.backup.resources | nindent 14 }}
+      backoffLimit: {{ .Values.backup.backoffLimit }}
+{{- end -}}

values.yaml

@@ -686,6 +686,53 @@ upgrade:
   ##
   to: ""
 
+## @section Backup parameters
+backup:
+  ## @param backup.enabled Whether to enable backup
+  enabled: false
+  ## @param backup.annotations Extra annotations to add to the backup job
+  annotations: {}
+  ## @param backup.labels Extra labels to add to the backup job
+  labels: {}
+  ## @param backup.suspended Whether to suspend backup scheduling
+  suspended: false
+  ## @param backup.schedule Cron expression for the backup job
+  schedule: "0 * * * *"
+  ## @param backup.schedule Cron expression for the backup job
+  successfulJobsHistoryLimit: 1
+  ##@ param backup.failedJobsHistoryLimit Cron expression for the backup job
+  failedJobsHistoryLimit: 3
+  ## @param backup.backoffLimit Cron expression for the backup job
+  backoffLimit: 3
+  ## @param backup.image.repository toolbox image repository
+  ## @param backup.image.tag toolbox image tag (immutable tags are recommended)
+  ## @param backup.image.pullPolicy toolbox image pull policy
+  ## @param backup.image.pullSecrets toolbox image pull secrets
+  image:
+    registry: quay.io/evertrust
+    repository: toolbox
+    tag: v0.1.0
+    pullPolicy: IfNotPresent
+    pullSecrets: []
+  ## backup container resource requests and limits
+  ## ref: https://kubernetes.io/docs/user-guide/compute-resources/
+  ## @param backup.resources.limits [object] The resources limits for the backup container
+  ## @param backup.resources.requests [object] The requested resources for the backup container
+  resources:
+    limits:
+      memory: 126Mi
+      cpu: 500m
+    requests: {}
+  ## Configure environment variable injections into the backup pods.
+  ## This is the way you should inject secrets into the app if you wish
+  ## to use the Kubernetes secrets implementation.
+  ##
+  ## ref: https://kubernetes.io/docs/tasks/inject-data-application/define-environment-variable-container/
+  ## @param environment [array] Extra env vars passed to the backup pods
+  environment: []
+  ## @param envFrom [array] Extra env vars passed to the backup pods
+  envFrom: []
+
 ## Configuration for an Horizon external database
 ## Refer to the Horizon installation guide to configure the installation correctly
 ##