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safer systemd example (unprivileged user + NAT for port 80 / 443)

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ed 2022-04-30 23:28:51 +02:00
parent 59d596b222
commit ccae9efdf0
1 changed files with 21 additions and 3 deletions
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24
contrib/systemd/copyparty.service
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@ -8,9 +8,12 @@
# firewall-cmd --reload
#
# you may want to:
# change "User=cpp" and "/home/cpp/" to another user
# remove the nft lines to only listen on port 3923
# and in the ExecStart= line:
# change '/usr/bin/python3' to another interpreter
# change '/mnt::rw' to another location or permission-set
# remove '-p 80,443,3923' to only listen on port 3923
# add '-q' to disable logging on busy servers
# add '-i 127.0.0.1' to only allow local connections
# add '-e2dsa' to enable filesystem scanning + indexing
# add '-e2ts' to enable metadata indexing
@ -35,8 +38,23 @@ Type=notify
SyslogIdentifier=copyparty
Environment=PYTHONUNBUFFERED=x
ExecReload=/bin/kill -s USR1 $MAINPID
ExecStartPre=/bin/bash -c 'mkdir -p /run/tmpfiles.d/ && echo "x /tmp/pe-copyparty*" > /run/tmpfiles.d/copyparty.conf'
ExecStart=/usr/bin/python3 /usr/local/bin/copyparty-sfx.py -q -p 80,443,3923 -e2d -v /mnt::rw
# user to run as + where the TLS certificate is (if any)
User=cpp
Environment=XDG_CONFIG_HOME=/home/cpp/.config
# setup forwarding from ports 80 and 443 to port 3923
ExecStartPre=+/bin/bash -c 'nft -n -a list table nat | awk "/ to :3923 /{print\$NF}" | xargs -rL1 nft delete rule nat prerouting handle; true'
ExecStartPre=+nft add table ip nat
ExecStartPre=+nft -- add chain ip nat prerouting { type nat hook prerouting priority -100 \; }
ExecStartPre=+nft add rule ip nat prerouting tcp dport 80 redirect to :3923
ExecStartPre=+nft add rule ip nat prerouting tcp dport 443 redirect to :3923
# stop systemd-tmpfiles-clean.timer from deleting copyparty while it's running
ExecStartPre=+/bin/bash -c 'mkdir -p /run/tmpfiles.d/ && echo "x /tmp/pe-copyparty*" > /run/tmpfiles.d/copyparty.conf'
# copyparty settings
ExecStart=/usr/bin/python3 /usr/local/bin/copyparty-sfx.py -e2d -v /mnt::rw
[Install]
WantedBy=multi-user.target