Caddy Systemd

caddy.service

# This service file requires the following:
#
# 1) Group named caddy:
#      $ groupadd --system caddy
#
# 2) User named caddy, with a writeable home folder:
#      $ useradd --system \
#           --gid caddy \
#           --create-home \
#           --home-dir /var/lib/caddy \
#           --shell /usr/sbin/nologin \
#           --comment "Caddy web server" \
#           caddy
#
# 3) Caddyfile at /etc/caddy/Caddyfile that is
#    readable by the caddy user
#

[Unit]
Description=Caddy Web Server
Documentation=https://caddyserver.com/docs/
After=network.target

[Service]
Environment=CADDYPATH=/etc/ssl/caddy
User=caddy
Group=caddy
ExecStart=/usr/bin/caddy -log /var/log/caddy/caddy.log -agree=true -conf=/etc/caddy/Caddyfile -root=/var/tmp
ExecReload=/bin/kill -USR1 $MAINPID
TimeoutStopSec=5s
LimitNOFILE=1048576
LimitNPROC=512
PrivateTmp=true
ProtectSystem=full
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target

Caddyfile

test.hostmatic.site {
  gzip
  root /var/www/
  log /var/www/access.log
  errors /var/www/errors.log
}