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Backup and restore

DB backup script: utils/backup-postgres.sh. Defaults: 30-day retention, 500 MB total cap under <repo>/backups/. Override with BACKUP_DIR, RETENTION_DAYS, MAX_TOTAL_MB.

Container logs are rotated at 10 MB × 3 files per service (see dockers/compose.yaml).

Scheduled backups

systemd timer (recommended)

Installs units with @REPO_ROOT@ resolved to this clone; output goes to journald:

sudo ./utils/install-backup-timer.sh

Check status:

systemctl status gsad-backup-postgres.timer

View logs:

journalctl -t gsad-backup

After changing compose logging options, recreate containers so limits apply:

./utils/gsad-compose.sh up -d --force-recreate

Verify

docker inspect "$(./utils/gsad-compose.sh ps -q backend | head -1)" \
  --format '{{.HostConfig.LogConfig}}'
# expect: map[max-file:3 max-size:10m]

Restore

Warning

Restore during a maintenance window — stop the backend or pause writes first.

gunzip -c backups/gsad_YYYYMMDD_HHMMSS.sql.gz | ./utils/gsad-compose.sh exec -T postgres psql -U gsad gsad