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[Unit]
Description=Restic REST Server
After=syslog.target
After=network.target
Requires=restic-rest-server.socket
After=restic-rest-server.socket

[Service]
Type=simple
# You may prefer to use a different user or group on your system.
User=restic-rest-server
Group=restic-rest-server
ExecStart=/usr/bin/rest-server --path /var/lib/restic-rest-server
Restart=always
RestartSec=5

# The following options are available (in systemd v247) to restrict the
# actions of the rest-server.

# As a whole, the purpose of these are to provide an additional layer of
# security by mitigating any unknown security vulnerabilities which may exist
# in rest-server or in the libraries, tools and operating system components
# which it relies upon.

# IMPORTANT!
# The following line must be customised to your individual requirements.
ReadWritePaths=/var/lib/restic-rest-server

# Makes created files group-readable, but inaccessible by others
UMask=027

# If your system doesn't support all of the features below (e.g. because of
# the use of an older version of systemd), you may wish to comment-out
# some of the lines below as appropriate.
CapabilityBoundingSet=
LockPersonality=true
MemoryDenyWriteExecute=true
NoNewPrivileges=yes

# As the listen socket is created by systemd via the rest-server.socket unit, it is
# no longer necessary for rest-server to have access to the host network namespace.
PrivateNetwork=yes

PrivateTmp=yes
PrivateDevices=true
PrivateUsers=true
ProtectSystem=strict
ProtectHome=yes
ProtectClock=true
ProtectControlGroups=true
ProtectKernelLogs=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectProc=invisible
ProtectHostname=true
RemoveIPC=true
RestrictNamespaces=true
RestrictAddressFamilies=none
RestrictSUIDSGID=true
RestrictRealtime=true
# if your service crashes with "code=killed, status=31/SYS", you probably tried to run linux_i386 (32bit) binary on a amd64 host
SystemCallArchitectures=native
SystemCallFilter=@system-service

# Additionally, you may wish to use some of the systemd options documented in
# systemd.resource-control(5) to limit the CPU, memory, file-system I/O and
# network I/O that the rest-server is permitted to consume according to the
# individual requirements of your installation.
#CPUQuota=25%
#MemoryHigh=bytes
#MemoryMax=bytes
#MemorySwapMax=bytes
#TasksMax=N
#IOReadBandwidthMax=device bytes
#IOWriteBandwidthMax=device bytes
#IOReadIOPSMax=device IOPS, IOWriteIOPSMax=device IOPS
#IPAccounting=true
#IPAddressAllow=

[Install]
WantedBy=multi-user.target