From 14ab11b20ec4ba5e4635addc25448b075605af5f Mon Sep 17 00:00:00 2001
From: Fabio Rauber <fabiorauber@gmail.com>
Date: Mon, 4 Apr 2022 11:25:50 -0300
Subject: [PATCH] Add velero backup support to pdnsadmin

---
 .../templates/velero-schedule-weekdays.yaml   | 39 +++++++++++++++++++
 charts/pdnsadmin/v0.1.0/values.yaml           | 15 ++++++-
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 charts/pdnsadmin/v0.1.0/templates/velero-schedule-weekdays.yaml

diff --git a/charts/pdnsadmin/v0.1.0/templates/velero-schedule-weekdays.yaml b/charts/pdnsadmin/v0.1.0/templates/velero-schedule-weekdays.yaml
new file mode 100644
index 0000000..7be5938
--- /dev/null
+++ b/charts/pdnsadmin/v0.1.0/templates/velero-schedule-weekdays.yaml
@@ -0,0 +1,39 @@
+{{- if .Values.velero.backup.enabled }}
+apiVersion: velero.io/v1
+kind: Schedule
+metadata:
+  name: {{ include "pdnsadmin.fullname" . }}-weekdays
+  namespace: {{ .Values.velero.namespace }}
+spec:
+  # generate a random backup time between 1 and 5 AM on weekdays
+  schedule: {{ mod (randNumeric 2) 60 }} {{ mod (randNumeric 1) 6 }} * * 1-5
+  template:
+    includedNamespaces:
+    - {{ .Release.Namespace }}
+    {{- with .Values.velero.backup.excludedResources }}
+    excludedResources:
+      {{- toYaml . | nindent 8 }}
+    {{- end }}
+    snapshotVolumes: {{ .Values.velero.backup.snapshotVolumes }}
+    # every weekday backup is good for the next week (7 days)
+    ttl: 168h0m0s
+    defaultVolumesToRestic: {{ .Values.velero.backup.defaultVolumesToRestic }}
+    hooks:
+      resources:
+      - name: mysqldump
+        includedResources:
+          - pods
+        labelSelector:
+          matchLabels:
+              app.kubernetes.io/instance: {{ .Release.Name }}
+              app.kubernetes.io/name: mariadb
+        pre:
+          - exec:
+              command: 
+                - "/bin/bash"
+                - "-c"
+                - "/opt/bitnami/mariadb/bin/mysqldump {{ .Values.mariadb.auth.database }} -u {{ .Values.mariadb.auth.username }} -p$MARIADB_PASSWORD > /bitnami/mariadb/{{ .Values.mariadb.auth.database }}.dump"
+              timeout: 360s
+              onError: Continue
+  useOwnerReferencesInBackup: false
+{{- end }}
\ No newline at end of file
diff --git a/charts/pdnsadmin/v0.1.0/values.yaml b/charts/pdnsadmin/v0.1.0/values.yaml
index d770a0c..5e3f5d7 100644
--- a/charts/pdnsadmin/v0.1.0/values.yaml
+++ b/charts/pdnsadmin/v0.1.0/values.yaml
@@ -87,4 +87,17 @@ mariadb:
     database: pdnsadmin
     password: pdnsadminpw
     rootPassword: pdnsadminrootpw
-    username: pdnsadmin
\ No newline at end of file
+    username: pdnsadmin
+
+velero:
+  namespace: velero
+  backup:
+    enabled: true
+    snapshotVolumes: false
+    defaultVolumesToRestic: true
+    # cert-manager objects are usually blocked during backup
+    excludedResources: 
+      - certificates.cert-manager.io
+      - orders.acme.cert-manager.io
+      - certificaterequests.cert-manager.io
+      - challenges.acme.cert-manager.io
\ No newline at end of file