borg backup

.gitignore

@@ -33,6 +33,7 @@ coverage
 
 # Local data
 secrets.py
+*/.env_borg
 *.log
 
 # Virtualenv

shell/.env_borg_example

@@ -0,0 +1,3 @@
+BORG_PASSPHRASE='CHANGE_ME'
+BORG_REPO='USER@SERVER:PATH'
+BACKUP_FILE='PATH'

shell/backup_db

@@ -1,9 +1,14 @@
 #!/bin/bash
+export $(cat .env_borg | xargs)
+
 # Create temporary backups directory
 mkdir -p /tmp/note-backups
-date=$(date +%Y-%m-%d)
-# Backup database and save it as tar archive
-sudo -u postgres pg_dump -F t note_db > "/tmp/note-backups/$date.sql"
-# Compress backup as gzip
-gzip "/tmp/note-backups/$date.sql"
-scp "/tmp/note-backups/$date.sql.gz" "club-bde@zamok.crans.org:backup/$date.sql.gz"
+
+# Backup database
+sudo -u postgres pg_dump -F t note_db > $BACKUP_FILE
+
+# Keep the last 30 backups
+borg prune --keep-last 30
+
+# Save backup
+borg create --compression lz4 ::backup-{now} $BACKUP_FILE