borgmatic/sample/systemd/borgmatic.service
Vladimir Timofeenko 6df6176f3a
Added more strict ProtectHome to systemd unit
This commit changes the comment in sample systemd service.

Using a combination of 'ProtectHome' and 'BindPaths' it's possible to
hide the irrelevant paths inside /root from borgmatic service when it is
run.

ReadWritePaths are suggested to be used only for paths that contain borg
repositories and the backup sources can be specified as ReadOnlyPaths.
2021-08-30 11:20:34 -07:00

63 lines
2.4 KiB
Desktop File

[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
[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
# Restrict write access
# Change to 'ProtectSystem=strict' and uncomment 'ProtectHome' to make the whole file
# system read-only be default and uncomment 'ReadWritePaths' for the required write access.
# Add local repositroy paths to the list of 'ReadWritePaths' like '-/mnt/my_backup_drive'.
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
# 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" /root/.local/bin/borgmatic --verbosity -1 --syslog-verbosity 1