autostart puma through systemd

puma_autostart_autoreload

1. create file in /etc/systemd/system/<your-puma>.service

[Unit]
Description=Puma HTTP Server Everbot
After=network.target

[Service]
# Foreground process (do not use --daemon in ExecStart or config.rb)
Type=simple

# Preferably configure a non-privileged user
User=deployer
Group=deployer

# Specify the path to your puma application root
WorkingDirectory=/home/deployer/apps/everbot

# Helpful for debugging socket activation, etc.
Environment=PUMA_DEBUG=1
# EnvironmentFile=/var/www/my-website.com/.env

# The command to start Puma
ExecStart=/home/deployer/.rvm/wrappers/ruby-2.6.0/bundle exec puma -C /home/deployer/apps/everbot/config/puma.rb

PIDFile=/home/deployer/apps/everbot/tmp/pids/puma.pid

ExecStop=/bin/kill -s QUIT $MAINPID

Restart=always

[Install]
WantedBy=multi-user.target