# Create Automatic Backup Job

This recipe creates a daily backup job using Restic and systemd.

## Create Backup Script

```bash
sudo nano /usr/local/bin/restic-backup.sh
```

Contents:

```bash
#!/usr/bin/env bash
set -e

source /etc/restic.env

restic backup <PATH>

restic forget --keep-daily 7 --keep-weekly 4 --keep-monthly 12 --keep-yearly 3 --prune
```

Replace:

- `<PATH>` with the folder path you want to backup (e.g. `/srv/samba`)

## Make Script Executable

```bash
sudo chmod +x /usr/local/bin/restic-backup.sh
```

## Load Environment

```bash
source <(sudo cat /etc/restic.env)
```

## Test Backup

```bash
sudo /usr/local/bin/restic-backup.sh
```

## Verify Snapshot

```bash
restic snapshots
```

Expected output:

```text
ID        Time                 Host
----------------------------------------
xxxxxxxx  YYYY-MM-DD HH:MM     hostname
```

## Automate with Cron

Edit root crontab.

```bash
sudo crontab -e
```

Add:

```cron
0 2 * * * /usr/local/bin/restic-backup.sh
```

## Verify Cron

```bash
sudo crontab -l
```

Expected output should contain:

```cron
0 2 * * * /usr/local/bin/restic-backup.sh
```

## Troubleshooting

### Repository not found

Verify:

```bash
echo $RESTIC_REPOSITORY
```

### Authentication failed

Verify the configured S3 credentials.

```bash
echo $AWS_ACCESS_KEY_ID
```

```bash
echo $AWS_SECRET_ACCESS_KEY
```

### Wrong password

Verify:

```bash
echo $RESTIC_PASSWORD
```