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- [Unit]
- Description=Caddy HTTP/2 web server
- Documentation=https://caddyserver.com/docs
- After=network-online.target
- Wants=network-online.target systemd-networkd-wait-online.service
- [Service]
- ;Restart=on-failure
- StartLimitInterval=86400
- StartLimitBurst=5
- ; User and group the process will run as.
- User=www-data
- Group=www-data
- ; Letsencrypt-issued certificates will be written to this directory.
- Environment=CADDYPATH=/etc/ssl/caddy
- ; Always set "-root" to something safe in case it gets forgotten in the Caddyfile.
- ExecStart=/usr/local/bin/caddy -log stdout -agree=true -conf=/etc/caddy/Caddyfile -root=/var/tmp
- ExecReload=/bin/kill -USR1 $MAINPID
- ; Limit the number of file descriptors; see `man systemd.exec` for more limit settings.
- LimitNOFILE=1048576
- ; Unmodified caddy is not expected to use more than that.
- LimitNPROC=64
- ; Use private /tmp and /var/tmp, which are discarded after caddy stops.
- PrivateTmp=true
- ; Use a minimal /dev
- PrivateDevices=true
- ; Hide /home, /root, and /run/user. Nobody will steal your SSH-keys.
- ;ProtectHome=true
- ; Make /usr, /boot, /etc and possibly some more folders read-only.
- ;ProtectSystem=full
- ; … except /etc/ssl/caddy, because we want Letsencrypt-certificates there.
- ; This merely retains r/w access rights, it does not add any new. Must still be writable on the host!
- ReadWriteDirectories=/etc/ssl/caddy
- ; The following additional security directives only work with systemd v229 or later.
- ; They further retrict privileges that can be gained by caddy. Uncomment if you like.
- ; Note that you may have to add capabilities required by any plugins in use.
- ;CapabilityBoundingSet=CAP_NET_BIND_SERVICE
- ;AmbientCapabilities=CAP_NET_BIND_SERVICE
- ;NoNewPrivileges=true
- [Install]
- WantedBy=multi-user.target
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