Back up MAAS

MAAS uses standard command-line utilities for simple, familiar backups. The options described here allow you to back up either a proof-of-concept test database or a complete production MAAS installation.

Back up a POC database

In many proof-of-concept (POC) environments, the maas_test_db ends up serving as the foundation for production. Backing it up protects the effort you’ve already invested in setup and configuration. Fortunately, the procedure is a simple one-line command:

pg_dump maasdb -U maas -h /var/snap/maas-test-db/common/postgres/sockets > dump.sql

Be sure to use a memorable label for the dump file.

Clean reset production backup

The method uses pg_dumpall the entire database and make a complete snapshot of MAAS.

Back up procedure

1. Find the PostgreSQL service:

   sudo systemctl list-units --type=service | grep postgres
   

2. Create backup directory:

   mkdir -p <backup-path>/$(date +%s)
   

3. Dump database:

   sudo -u postgres pg_dumpall -c > "<backup-path>/$(date +%s)_dump.sql"
   

4. Stop MAAS:

   sudo snap stop maas
   

5. (Optional) Stop PostgreSQL:

   sudo systemctl stop postgresql.service
   

6. Snap backup:

   sudo snap save maas
   

7. Export snapshot:

   sudo snap export-snapshot <snapshot-id> <backup-path>/$(date +%s)_snapshot
   

8. Restart services:

   sudo systemctl start postgresql.service
   sudo snap restart maas
   

Restore

1. Stop MAAS & remove instance:

   sudo snap stop maas && sudo snap remove maas
   

2. Restore database:

   sudo -u postgres psql -f <backup-path>/<dump.sql> postgres
   

3. Import & restore snapshot:

   sudo snap import-snapshot <backup-path>/<snapshot>
   sudo snap restore <snapshot-id>
   

4. Restart services:

   sudo systemctl start postgresql.service
   sudo snap restart maas