Borgmatic service timer configuration file at /lib/systemd/system/borgmatic.service

borgmatic.service

[Unit]
Description=borgmatic backup
Wants=network-online.target
After=network-online.target
# Prevent borgmatic from running unless the machine is plugged into power. Remove this line if you
# want to allow borgmatic to run anytime.
ConditionACPower=true
ConditionFileNotEmpty=/etc/borgmatic/config.yaml
Documentation=https://torsion.org/borgmatic/

[Service]
Type=oneshot

# Security settings for systemd running as root, optional but recommended to improve security. You
# can disable individual settings if they cause problems for your use case. For more details, see
# the systemd manual: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
LockPersonality=true
# Certain borgmatic features like Healthchecks integration need MemoryDenyWriteExecute to be off.
# But you can try setting it to "yes" for improved security if you don't use those features.
MemoryDenyWriteExecute=no
NoNewPrivileges=yes
PrivateDevices=yes
PrivateTmp=yes
ProtectClock=yes
ProtectControlGroups=yes
ProtectHostname=yes
ProtectKernelLogs=yes
ProtectKernelModules=yes
ProtectKernelTunables=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
RestrictNamespaces=yes
RestrictRealtime=yes
RestrictSUIDSGID=yes
SystemCallArchitectures=native
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
# To restrict write access further, change "ProtectSystem" to "strict" and uncomment
# "ReadWritePaths", "ReadOnlyPaths", "ProtectHome", and "BindPaths". Then add any local repository
# paths to the list of "ReadWritePaths" and local backup source paths to "ReadOnlyPaths". This
# leaves most of the filesystem read-only to borgmatic.
ProtectSystem=full
# ReadWritePaths=-/mnt/my_backup_drive
# ReadOnlyPaths=-/var/lib/my_backup_source
# This will mount a tmpfs on top of /root and pass through needed paths
# ProtectHome=tmpfs
# BindPaths=-/root/.cache/borg -/root/.cache/borg -/root/.borgmatic

CapabilityBoundingSet=CAP_DAC_READ_SEARCH CAP_NET_RAW

# Lower CPU and I/O priority.
Nice=19
CPUSchedulingPolicy=batch
IOSchedulingClass=best-effort
IOSchedulingPriority=7
IOWeight=100

Restart=no
# Prevent rate limiting of borgmatic log events. If you are using an older version of systemd that
# doesn't support this (pre-240 or so), you may have to remove this option.
LogRateLimitIntervalSec=0

User=root

# Delay start to prevent backups running during boot. Note that systemd-inhibit requires dbus and
# dbus-user-session to be installed.
ExecStartPre=sleep 1m
ExecStart=systemd-inhibit --who="borgmatic" --why="Prevent interrupting scheduled backup" /usr/bin/borgmatic --verbosity -1 --syslog-verbosity 1
# ExecStop=Do what you want to do after backup