I am running both my staging and production environments on the same DigitalOcean Ubuntu box. I have everything working so that each environment can be deployed to its own directory, run a separate unicorn process with separate pid files, and nginx is configured with separate sites-enabled files to associate each of those unicorn instances with its proper environment.
My deploy process properly (re)starts unicorn for the matching environment. The problem is when I need to restart the box itself, in which my /etc/init.d/unicorn is only configured to launch for production. I'm not sure what I need to do to make both production and staging launch at startup, shy of creating secondary /etc/init.d/unicorn-staging and /etc/default/unicorn-staging files.
Here are my existing files for reference.
/etc/init.d/unicorn
#!/bin/sh
### BEGIN INIT INFO
# Provides: unicorn
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: unicorn initscript
# Description: unicorn
### END INIT INFO
set -e
NAME=unicorn
DESC="Unicorn web server"
. /lib/lsb/init-functions
if [ -f /etc/default/unicorn ]; then
. /etc/default/unicorn
fi
PID=${PID-/run/unicorn.pid}
run_by_init() {
([ "${previous-}" ] && [ "${runlevel-}" ]) || [ "${runlevel-}" = S ]
}
exit_with_message() {
if ! run_by_init; then
log_action_msg "$1 Not starting."
fi
exit 0
}
check_config() {
if [ $CONFIGURED != "yes" ]; then
exit_with_message "Unicorn is not configured (see /etc/default/unicorn)."
fi
}
check_app_root() {
if ! [ -d $APP_ROOT ]; then
exit_with_message "Application directory $APP_ROOT is not exist."
fi
}
set -u
case "$1" in
start)
check_config
check_app_root
log_daemon_msg "Starting $DESC" $NAME || true
if start-stop-daemon --start --quiet --oknodo --pidfile $PID --exec $DAEMON -- $UNICORN_OPTS; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
stop)
log_daemon_msg "Stopping $DESC" $NAME || true
if start-stop-daemon --stop --signal QUIT --quiet --oknodo --pidfile $PID; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
force-stop)
log_daemon_msg "Forcing stop of $DESC" $NAME || true
if start-stop-daemon --stop --quiet --oknodo --pidfile $PID; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
restart|force-reload)
log_daemon_msg "Restarting $DESC" $NAME || true
start-stop-daemon --stop --quiet --oknodo --pidfile $PID
sleep 1
if start-stop-daemon --start --quiet --oknodo --pidfile $PID --exec $DAEMON -- $UNICORN_OPTS; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
reload)
log_daemon_msg "Reloading $DESC" $NAME || true
if start-stop-daemon --stop --signal HUP --quiet --oknodo --pidfile $PID; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
reopen-logs)
log_daemon_msg "Relopening log files of $DESC" $NAME || true
if start-stop-daemon --stop --signal USR1 --quiet --oknodo --pidfile $PID; then
log_end_msg 0 || true
else
log_end_msg 1 || true
fi
;;
status)
status_of_proc -p $PID $DAEMON $NAME && exit 0 || exit $?
;;
*)
log_action_msg "Usage: $0 <start|stop|restart|force-reload|reload|force-stop|reopen-logs|status>" || true
exit 1
;;
esac
/etc/default/unicorn
# Change paramentres below to appropriate values and set CONFIGURED to yes.
CONFIGURED=yes
# Default timeout until child process is killed during server upgrade,
# it has *no* relation to option "timeout" in server's config.rb.
TIMEOUT=60
# Path to your web application, sh'ld be also set in server's config.rb,
# option "working_directory". Rack's config.ru is located here.
APP_ROOT=/var/www/example.com/current
# Server's config.rb, it's not a rack's config.ru
CONFIG_RB=/var/www/example.com/current/config/unicorn.rb
# Where to store PID, sh'ld be also set in server's config.rb, option "pid".
PID=/var/www/coderfit.com/shared/tmp/pids/unicorn.pid
UNICORN_OPTS="-D -c $CONFIG_RB -E production"
PATH=/usr/local/rvm/rubies/ruby-2.2.0/bin:/var/www/example.com/shared/bundle/ruby/2.2.0/bin:/usr/local/sbin:/usr/bin:/bin:/sbin:$
export GEM_HOME=/usr/local/rvm/gems/ruby-2.2.0@example
export GEM_PATH=/var/www/example.com/shared/bundle/ruby/2.2.0:/usr/local/rvm/gems/ruby-2.2.0@example:/usr/local/rvm/gems/ruby-2.2.0@global
DAEMON=/var/www/example.com/shared/bundle/ruby/2.2.0/bin/unicorn
