ADD ipeer db backup cronjob

The old email cronjob template was moved from cronjob.yaml to
cronjob-email.yaml and the new db cronjob template is named
cronjob-backup.yaml.

This migrates the old manually created prod db backup cronjob to one
that's managed by the chart. The old cronjob was no longer working ever
since we started using replication since the db pod names were changed.

New config values were added for this feature under 'cronjob.backup'.
The most important is the ones specifying the nfs mount where we store
the backups, 'cronjob.backup.nfs.path' and 'cronjob.backup.nfs.server'
must be set properly in the env value files.

ipeer/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.1.9
+version: 0.1.11
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

ipeer/templates/cronjob-backup.yaml

@@ -0,0 +1,54 @@
+{{- if .Values.cronjob.backup.enabled }}
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: {{ include "ipeer.fullname" . }}-backup-cronjob
+spec:
+  schedule: {{ .Values.cronjob.backup.schedule | quote }}
+  jobTemplate:
+    spec:
+      template:
+        spec:
+          containers:
+          - name: {{ include "ipeer.fullname" . }}-backup-cronjob
+            image: "{{ .Values.db.image.repository }}:{{ .Values.db.image.tag }}"
+            args:
+            - /bin/sh
+            - -c
+            - |
+              set -e
+              echo "[$(date)] - Starts backing up ipeer database!"
+              CURRENT_YEAR=$(date +%Y)
+              MYSQLDMP_FILE=/db_archives/$CURRENT_YEAR/$IPEER_ENV_NAME-db-$(date +%F_%T).sql.gz
+              mkdir -p /db_archives/$CURRENT_YEAR
+              mysqldump -u"$IPEER_DB_USER" -p"$IPEER_DB_PASSWORD" -h"$IPEER_DB_HOST" ipeer --single-transaction --quick | gzip > $MYSQLDMP_FILE
+              zgrep "Dump completed" $MYSQLDMP_FILE
+            env:
+            - name: IPEER_ENV_NAME
+              value: {{ include "ipeer.fullname" . }}
+            - name: IPEER_DB_HOST
+              value: {{ template "ipeer.db.fullname" . }}
+            - name: IPEER_DB_PORT
+              value: {{ .Values.db.service.port | quote }}
+            - name: IPEER_DB_USER
+              value: {{ .Values.db.auth.username | quote }}
+            - name: IPEER_DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                {{- if .Values.db.disableExternal }}
+                  name: {{ template "ipeer.db.secretName" . }}
+                  key: mariadb-password
+                {{- else }}
+                  name: {{ template "ipeer.fullname" . }}
+                  key: db_password
+                {{- end }}
+            volumeMounts:
+            - mountPath: /db_archives
+              name: nfs-volume
+          restartPolicy: Never
+          volumes:
+          - name: nfs-volume
+            nfs:
+              path: {{ .Values.cronjob.backup.nfs.path | quote }}
+              server: {{ .Values.cronjob.backup.nfs.server | quote }}
+{{- end }}

ipeer/templates/cronjob.yaml → ipeer/templates/cronjob-email.yaml

@@ -1,4 +1,4 @@
-{{- if .Values.cronjob.enabled }}
+{{- if .Values.cronjob.email.enabled }}
 apiVersion: batch/v1
 kind: CronJob
 metadata:

ipeer/values.yaml

@@ -25,7 +25,14 @@ worker:
   enabled: false
 
 cronjob:
-  enabled: true
+  email:
+    enabled: true
+  backup:
+    enabled: false
+    schedule: "00 09 * * *"
+    nfs:
+      path: 'REPLACEME'
+      server: 'REPLACEME'
 
 imagePullSecrets: []
 nameOverride: ""