dokku postgres (and volume folders) backup cronjob (using https://github.com/dokku/dokku-postgres)

dokku-pg-backup.sh

#! /bin/bash

MAILTO=$(whoami)
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# directory to save backups in, must be rwx by dokku user
BASE_DIR="/var/lib/dokku/data/storage/backups/postgres"
YMD=$(date "+%Y-%m-%d")
DIR="$BASE_DIR/$YMD"
mkdir -p $DIR
cd $DIR

# make database backup
dokku postgres:export $1 | gzip -9 > "$DIR/$1_db.dump.gz"

# delete backup files older than 30 days
OLD=$(find $BASE_DIR -type d -mtime +30)
if [ -n "$OLD" ] ; then
        echo deleting old backup files: $OLD
        echo $OLD | xargs rm -rfv
fi

dokku-volume-backup.sh

#! /bin/bash

MAILTO=$(whoami)
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

# directory to save backups in, must be rwx by dokku user
BASE_DIR="/var/lib/dokku/data/storage/backups/volumes/volume-$1"
YMD=$(date "+%Y-%m-%d")
DIR="$BASE_DIR/$YMD"
mkdir -p $DIR
cd $DIR

# backup target folder
cd /var/www
tar -czf "$DIR/$1_volume.tar.gz" $1

# delete backup files older than 30 days
OLD=$(find $BASE_DIR -type d -mtime +30)
if [ -n "$OLD" ] ; then
        echo deleting old backup files: $OLD
        echo $OLD | xargs rm -rfv
fi

Requirements

Don't forget to chmod +x dokku-pg-backup.sh dokku-volume-backup.sh.

PostGres Backup

Use it like dokku-pg-backup.sh your-pg-db.

To set it up as CRON:

# create backup folder and give permission to dokku on it
sudo mkdir /var/backups/postgres
sudo chown -R dokku:dokku /var/backups/postgres

# set up crontab as dokku user
sudo su dokku
crontab -e

And edit crontab as follow (for a backup every day at 2:15am):

15 2 * * * PATH_TO_THE_SCRIPT NAME_OF_YOUR_DB

Volume Backup

Use it like dokku-volume-backup.sh your-app-volume-folder where your app's volume folder(s) lives in /var/www/ (e.g. /var/www/your-app-volume-folder/lots_of_directories_and_files).

To set it up as CRON:

# create backup folder and give permission to dokku on it
sudo mkdir /var/backups/volumes
sudo chown -R dokku:dokku /var/backups/volumes

# set up crontab as dokku user
sudo su dokku
crontab -e

And edit crontab as follow (for a backup every day at 2:45am):

45 2 * * * PATH_TO_THE_SCRIPT NAME_OF_YOUR_FOLDER