Manage Puma server with SystemD and rbenv

puma.service

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

[Service]
Type=simple
User=deploy
WorkingDirectory=/srv/app/current

# Helpful for debugging socket activation, etc.
# Environment=PUMA_DEBUG=1
Environment=RAILS_ENV=production
Environment=PORT=9292

ExecStart=/home/deploy/.rbenv/shims/bundle exec --keep-file-descriptors puma -C /srv/app/current/config/puma.rb

# Variant: Specify directives inline.
# ExecStart=/<FULLPATH>/puma -b tcp://0.0.0.0:9292 -b ssl://0.0.0.0:9293?key=key.pem&cert=cert.pem

Restart=always

[Install]
WantedBy=multi-user.target