From 64e3d5809acf46c93e7a0b2725dc9185f1c67afa Mon Sep 17 00:00:00 2001
From: John Hsu <ionparticle@gmail.com>
Date: Tue, 5 Mar 2024 09:06:20 -0800
Subject: [PATCH] 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                              |  2 +-
 ipeer/templates/cronjob-backup.yaml           | 54 +++++++++++++++++++
 .../{cronjob.yaml => cronjob-email.yaml}      |  2 +-
 ipeer/values.yaml                             |  9 +++-
 4 files changed, 64 insertions(+), 3 deletions(-)
 create mode 100644 ipeer/templates/cronjob-backup.yaml
 rename ipeer/templates/{cronjob.yaml => cronjob-email.yaml} (98%)

diff --git a/ipeer/Chart.yaml b/ipeer/Chart.yaml
index 33b7276..d4c7f02 100644
--- a/ipeer/Chart.yaml
+++ b/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
diff --git a/ipeer/templates/cronjob-backup.yaml b/ipeer/templates/cronjob-backup.yaml
new file mode 100644
index 0000000..df7a65b
--- /dev/null
+++ b/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 }}
diff --git a/ipeer/templates/cronjob.yaml b/ipeer/templates/cronjob-email.yaml
similarity index 98%
rename from ipeer/templates/cronjob.yaml
rename to ipeer/templates/cronjob-email.yaml
index 5970d06..eaf26f7 100644
--- a/ipeer/templates/cronjob.yaml
+++ b/ipeer/templates/cronjob-email.yaml
@@ -1,4 +1,4 @@
-{{- if .Values.cronjob.enabled }}
+{{- if .Values.cronjob.email.enabled }}
 apiVersion: batch/v1
 kind: CronJob
 metadata:
diff --git a/ipeer/values.yaml b/ipeer/values.yaml
index 6d65949..40cf3c0 100644
--- a/ipeer/values.yaml
+++ b/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: ""