Backups are important and should obvioulsy not be stored on the same server. Sending a dump of my PostgreSQL database per e-mail once a day seemed like an easy and viable solution – as long as it does not get too big. Gmail accounts provide more than enough space for storing small backups which is why I set up an additional account in order to not pollute my main inbox.
This is the small script I wrote to do so:
#!/bin/bash EMAIL="email@example.com" DATABASE="my_database" DATE=$(date +"%Y-%m-%d") FILE="/tmp/pg_dump_$DATABASE_$DATE.sql.gz" pg_dump --inserts $DATABASE | gzip > $FILE mutt -s "PG Dump $DATABASE $DATE" -a $FILE -- $EMAIL < /dev/null
You might have to install and configure
mutt to be able to send e-mails with attachements. This tutorial shows how to do that.
Store the file somewhere, execute
chmod +x pg_bak.sh and schedule the script as a cronjob via
# m h dom mon dow command 0 4 * * * /path/to/script/pg_bak.sh
Now a backup of your database should be sent to the provided e-mail-address every day.