[Unit]
Description=Varnish a high-perfomance HTTP accelerator
After=syslog.target network.target

[Service]

#
# If you want to make changes to this file, please copy it to 
# /etc/systemd/system/varnish and make your changes there.
# This will override the file kept at /lib/systemd/system/varnish
#

#
# systemd specific configuration
#

# Maximum number of open files (for ulimit -n)
LimitNOFILE=131072

# Locked shared memory (for ulimit -l)
# Default log size is 82MB + header
LimitMEMLOCK=82000

# Maximum size of the corefile. 
LimitCORE=infinity

#
# End of systemd specific configuration
#

# Varnish environment configuration description. This was derived from
# the old style sysconfig/defaults settings
#
# DO NOT enter configuration within the comments here. Use the
# Environment= section below. For better readability, the single line
# Environment= is chopped with escaped newlines, that is single lines
# ending with a '\'. The following environment variables may be used:
#
# Set this to 1 to make systemd reload try to switch vcl without restart. 
# RELOAD_VCL
#
# Main configuration file. You probably want to change it.
# VARNISH_VCL_CONF
#
# Default address and port to bind to. Blank address means all IPv4
# and IPv6 interfaces, otherwise specify a host name, an IPv4 dotted
# quad, or an IPv6 address in brackets.
# VARNISH_LISTEN_ADDRESS
# VARNISH_LISTEN_PORT
#
# Admin interface listen address and port
# VARNISH_ADMIN_LISTEN_ADDRESS
# VARNISH_ADMIN_LISTEN_PORT
#
# Shared secret file for admin interface
# VARNISH_SECRET_FILE
#
# The minimum number of worker threads to start
# VARNISH_MIN_THREADS
#
# The Maximum number of worker threads to start
# VARNISH_MAX_THREADS
#
# Idle timeout for worker threads
# VARNISH_THREAD_TIMEOUT
#
# Backend storage specification, see Storage Types in the varnishd(5)
# man page for details.
# VARNISH_STORAGE
#
# Default TTL used when the backend does not specify one
# VARNISH_TTL
#
# End of varnish environment descriptiton
#
 
Environment=                                \
  RELOAD_VCL=1                              \
  VARNISH_VCL_CONF=/etc/varnish/default.vcl \
  VARNISH_PID_FILE=/var/run/varnish.pid     \
  VARNISH_USER=varnish                      \
  VARNISH_GROUP=varnish                     \
  VARNISH_LISTEN_PORT=6081                  \
  VARNISH_ADMIN_LISTEN_ADDRESS=127.0.0.1    \
  VARNISH_ADMIN_LISTEN_PORT=6082            \
  VARNISH_SECRET_FILE=/etc/varnish/secret   \
  VARNISH_MIN_THREADS=1                     \
  VARNISH_MAX_THREADS=1000                  \
  VARNISH_THREAD_TIMEOUT=120                \
  VARNISH_TTL=120                           \
  VARNISH_STORAGE="file,/var/lib/varnish/varnish_storage.bin,1G"

Type=forking
PIDFile=/var/run/varnish.pid
ExecStart=/usr/sbin/varnishd \
	-P /var/run/varnish.pid \
	-f $VARNISH_VCL_CONF \
	-a ${VARNISH_LISTEN_ADDRESS}:${VARNISH_LISTEN_PORT} \
	-T ${VARNISH_ADMIN_LISTEN_ADDRESS}:${VARNISH_ADMIN_LISTEN_PORT} \
	-t $VARNISH_TTL \
	-w ${VARNISH_MIN_THREADS},${VARNISH_MAX_THREADS},${VARNISH_THREAD_TIMEOUT} \
	-u $VARNISH_USER \
	-g $VARNISH_GROUP \
	-S $VARNISH_SECRET_FILE \
	-s $VARNISH_STORAGE \
	$DAEMON_OPTS

ExecReload=/usr/bin/varnish_reload_vcl

[Install]
WantedBy=multi-user.target