# sudo systemctl daemon-reload
# sudo systemctl restart greenlock-express
# sudo journalctl -xefu greenlock-express
[Unit]
Description=Greenlock Static Server
Documentation=https://git.coolaj86.com/coolaj86/greenlock-express.js/
After=network.target
Wants=network.target systemd-networkd-wait-online.service

[Service]
# Restart on crash (bad signal), 'clean' failure (error exit code), everything
# Allow up to 3 restarts within 10 seconds
# (it's unlikely that a user or properly-running script will do this)
Restart=always
StartLimitInterval=10
StartLimitBurst=3

# User and group the process will run as
# (git is the de facto standard on most systems)
User=ubuntu
Group=ubuntu

WorkingDirectory=/srv/www
# custom directory cannot be set and will be the place where gitea exists, not the working directory
ExecStart=/opt/node/bin/node /opt/greenlock-express.js/server.js /opt/greenlock-express.js/config.js

# Limit the number of file descriptors and processes; see `man systemd.exec` for more limit settings.
# greenlock is not expected to use more than this.
LimitNOFILE=1048576
LimitNPROC=64

# Use private /tmp and /var/tmp, which are discarded after gitea 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 /opt/greenlock-express.js/acme because we want a place for the database
# and /opt/greenlock-express.js/var because we want a place where logs can go.
# This merely retains r/w access rights, it does not add any new.
# Must still be writable on the host!
ReadWriteDirectories=/srv/www /opt/greenlock-express.js

# Note: in v231 and above ReadWritePaths has been renamed to ReadWriteDirectories
; ReadWritePaths=/opt/gitea /var/log/gitea

# The following additional security directives only work with systemd v229 or later.
# They further retrict privileges that can be gained by gitea.
# Note that you may have to add capabilities required by any plugins in use.
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE