Using the upstream pump.io systemd unit

pump.io ships a systemd unit file which all administrators are strongly encouraged to use.

This has several benefits:

  1. You don’t have to write a systemd unit yourself
  2. Your node will automatically use production best practices, such as setting NODE_ENV to production in the environment
  3. You automatically get an improved setup when we change the service file to e.g. take advantage of systemd security features

To start using the systemd unit shipped with pump.io, install a symlink in systemd’s unit file directory:

Warning

You should double-check that these paths are the correct paths for your system before running this command. In particular, some npm setups may install pump.io to /usr/local/lib/node_modules instead of /usr/lib/node_modules.

$ sudo ln -s /usr/lib/node_modules/pump.io/pump.io@.service /lib/systemd/system/

Now that you’ve got your unit installed, you need to figure out the name of your unit. The pump.io systemd unit is parameterized so that you can specify the systemd service name of your Databank driver. The unit will arrange to have pump.io depend on the driver service being available. (See the “Specifiers” section of systemd.unit(8) for more details on how this works.)

For example, if your Databank driver is MongoDB, your pump.io unit name would be pump.io@mongodb.service. This will cause mongodb.service to be started before pump.io.

To actually enable the unit, try systemctl:

$ sudo systemctl enable pump.io@mongodb

If that command works, great! You’re done. However, if you received Failed to execute operation: No such file or directory or something similar, you are likely affected by systemd bug #3010, so you’ll need to manually enable the service. This is easy enough with ln:

$ sudo ln -s /lib/systemd/system/pump.io@.service /etc/systemd/system/multi-user.target.wants/pump.io@mongodb.service

pump.io will now automatically start at boot. To start it immediately:

$ sudo systemctl daemon-reload
$ sudo systemctl start pump.io@mongodb

Congratulations! You’re now using the systemd unit file shipped with pump.io.