restic systemd config

restic-backup@.service

[Unit]
Description=Restic backup %I

[Service]
Type=oneshot
Environment="HOME=%h"
ExecStart=/usr/bin/restic backup $BACKUP_ARGS "${BACKUP_PATH}"
ExecStart=/usr/bin/restic forget --prune $FORGET_ARGS
ExecStart=/usr/bin/restic check

restic-backup@.timer

[Unit]
Description=Restic backup %I

[Timer]
OnCalendar=hourly
Persistent=true

[Install]
WantedBy=timers.target

Setup

Copy template files restic-backup@.service and restic-backup@.timer into /etc/systemd/system/.

Create a new scheduled backup

1. To create a backup called "foo" run the following command:

sudo systemctl edit restic-backup@foo.service

Insert the following configuration, adjusted to your needs:

[Service]
Environment="BACKUP_PATH=/test/source"
Environment='BACKUP_ARGS=\
--exclude "/test/source/file3" \
'
Environment='FORGET_ARGS=\
--keep-hourly 24 \
--keep-daily 30 \
--keep-monthly 12 \
'
Environment="RESTIC_REPOSITORY=/test/repo"
Environment="RESTIC_PASSWORD=my-pass"

2. Enable a timer for the new service:

sudo systemctl enable --now restic-backup@foo.timer