Lovelace Engine FreeBSD Service Configuration

engine

#!/bin/sh

# PROVIDE: engine
# REQUIRE: DAEMON
# AFTER: LOGIN
# KEYWORD: nojail shutdown

. /etc/rc.subr

# When managing the service using "service engine (start|stop)"
# the PATH doesn't include executables in /usr/local/bin
export PATH=/usr/local/bin:$PATH

# Engine installation directory
engine_dir=/usr/home/freebsd/lovelace-engine/

# Specify the name of the service
name="engine"
rcvar="engine_enable"

# Gunicorn master process PID
pidfile="/var/run/${name}.pid"

# Fail on Engine start-up if these files are missing
required_files="${engine_dir}"

# Gunicorn's master process reloads on SIGHUP
sig_reload="HUP"

# Specify functions to call on service start and stop
start_precmd="${name}_prestart"
start_cmd="${name}_start"
stop_cmd="${name}_stop"
#stop_postcmd="${name}_poststop"

# Use default rc.d behaviour for "reload" and "status"
# and specify custom "setup" command
extra_commands="reload status setup"

# Specify functions to call for custom commands
setup_cmd="${name}_setup"

engine_prestart()
{
	# We want to make sure the virtual environment is set up
	# Assume that if the python executable exists, we're good to go
	if [ ! -e $engine_dir/env/bin/python ]
	then
		make -C $engine_dir prepare-venv
	fi
}

engine_start()
{
	make -C $engine_dir start-engine
}

engine_stop()
{
	make -C $engine_dir stop-engine
}

#engine_poststop()
#{
#	make -C $engine_dir clean
#}

engine_setup()
{
	make -C $engine_dir clean
	make -C $engine_dir prepare-venv	
}

# By default, the Engine should enabled (i.e, start on boot)
load_rc_config $name
: ${engine_enable:="yes"}

# Let rc.d handle the request
run_rc_command "$1"