feat: migration

.gitignore

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+dockerBuildAndPush.sh

BackupSideCar.Dockerfile

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+FROM alpine:3.17
+
+# Setup correct TZ
+RUN apk add alpine-conf
+RUN /sbin/setup-timezone -z UTC
+
+RUN apk add restic curl
+
+WORKDIR /app
+
+COPY ./src/entry.sh /app/
+COPY ./src/backup.sh /app/
+
+CMD [ "/bin/sh", "entry.sh" ]

src/backup.sh

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+#!/bin/sh
+
+GOTIFYURL="$GOTIFYHOST/message?token=$GOTIFYTOKEN"
+
+echo "$(date +"%Y-%m-%dT%T") - Starting backup"
+
+restic backup           \
+    --verbose		\
+    $SOURCEDIR
+
+RESTIC_BACKUP_RETURN=$?
+
+if [ $RESTIC_BACKUP_RETURN -eq 0 ]; then
+    MSG_BACKUP_SUCCESS="Backup successful"
+    echo "$(date +"%Y-%m-%dT%T") - $MSG_BACKUP_SUCCESS"
+    curl -s -X POST "$GOTIFYURL" -F "title=$GOTIFYTOPIC" -F "message=$MSG_BACKUP_SUCCESS"
+else
+    MSG_BACKUP_ERR="Backup failed with error code $RESTIC_BACKUP_RETURN"
+    echo "$(date +"%Y-%m-%dT%T") - MSG_BACKUP_ERR"
+    curl -s -X POST "$GOTIFYURL" -F "title=$GOTIFYTOPIC" -F "message=$MSG_BACKUP_ERR"
+    exit $RESTIC_BACKUP_RETURN
+fi
+
+
+MSG_PURGE_START="$(date +"%Y-%m-%dT%T") - Removing old backups"
+echo $MSG_PURGE_START
+
+restic forget --keep-last $KEEPLAST --prune
+RESTIC_PURGE_RETURN=$?
+
+if [ $RESTIC_PURGE_RETURN -eq 0 ]; then
+    echo "$(date +"%Y-%m-%dT%T") - Purge successful"
+else
+    MSG_PURGE_ERR="Purge failed with error code $MSG_PURGE_ERR"
+    echo "$(date +"%Y-%m-%dT%T") - $MSG_PURGE_ERR"
+    curl -s -X POST "$GOTIFYURL" -F "title=$GOTIFYTOPIC" -F "message=$MSG_PURGE_ERR"
+    exit $RESTIC_PURGE_RETURN
+fi
+
+echo "$(date +"%Y-%m-%dT%T") - Going back to sleep..."

src/entry.sh

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+#!/bin/sh
+
+mkdir /etc/cron.d
+touch /etc/cron.d/backup
+echo "$INTERVAL /bin/sh /app/backup.sh" > /etc/cron.d/backup
+
+# change ownership and make the cron known to crontab
+chmod 0644 /etc/cron.d/backup && crontab /etc/cron.d/backup
+
+
+if [ $RUNONSTART = 'true' ]; then
+    echo $(date +"%Y-%m-%dT%T") "- Running initial backup"
+    /bin/sh /app/backup.sh
+fi
+
+# Wait until infinity
+echo $(date +"%Y-%m-%dT%T") "- Starting cron"
+crond -f