How should I maintain my Puma application server? - ruby-on-rails

Question

I can successfully run a rails application on my server using Puma as the application server. I start Puma like this:
bundle exec puma -e production -b unix:///var/run/my_app.sock
That is a unix command that starts puma in production mode at the specified location. However, if I need to reboot my vps, I'll need to go through all of my apps and run that command over and over to start the Puma server for each app.
What's the best way to go about doing this? I'm a bit of an Ubuntu noob, but would the best way to be this:
Every time I install a new rails application on my vps, I
sudo vi /etc/rc.local
and append rc.local with the command? So that rc.local looks like this after a while:
#!/bin/sh -e
#
# rc.local
#
bundle exec puma -e production -b unix:///var/run/app_1.sock
bundle exec puma -e production -b unix:///var/run/app_2.sock
bundle exec puma -e production -b unix:///var/run/app_3.sock
bundle exec puma -e production -b unix:///var/run/app_4.sock
bundle exec puma -e production -b unix:///var/run/app_5.sock
exit 0

Answer 1

Ubuntu uses upstart to manage services. Puma actually provides upstart scripts that make it incredibly easy to do what you want. Have a look at the scripts in their repo:
https://github.com/puma/puma/tree/master/tools/jungle/upstart

Answer 2

Ubuntu makes this very difficult. The simplest solution I've seen so far is with OpenBSD. To make sure your apps start on reboot, add this to your /etc/rc.conf.local:
pkg_scripts="myapp myapp2 myapp3"
Each app would need a startup script like this (/etc/rc.d/myapp):
#!/bin/sh
# OPENBSD PUMA STARTUP SCRIPT
# Remember to `chmod +x` this file
# http://www.openbsd.org/cgi-bin/cvsweb/ports/infrastructure/templates/rc.template?rev=1.5
puma="/usr/local/bin/puma"
pumactl="/usr/local/bin/pumactl"
puma_state="-S /home/myapp/tmp/puma.state"
puma_config="-C /home/myapp/config/puma.rb"
. /etc/rc.d/rc.subr
rc_start() {
${rcexec} "${pumactl} ${puma_state} start ${puma_config}"
}
rc_reload() {
${rcexec} "${pumactl} ${puma_state} restart ${puma_config}"
}
rc_stop() {
${rcexec} "${pumactl} ${puma_state} stop"
}
rc_check() {
${rcexec} "${pumactl} ${puma_state} status"
}
rc_cmd $1
Then do like:
% /etc/rc.d/myapp start
% /etc/rc.d/myapp reload
% /etc/rc.d/myapp stop
% /etc/rc.d/myapp status