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wintersolutions
Asked: 2014-01-12 17:26:03 +0800 CST

Starting MongoDB with SystemD by listening to a Socket

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I'd like to run MongoDB on my development machine whenever the Port 27017 requested but not before that. I already got parts of the file /usr/lib/systemd/system/mongodb.socket but now I'm stuck what else goes in there and I don't know if this is the right directory.

[Unit]
Description=High-performance, schema-free document-oriented database Socket

[Socket]
ListenStream=27017

[Install]
WantedBy=sockets.target

My question is basically: What else do I need to write in the file, where do I place this file and do I have to do more than run systemctl enable mongodb.socket after that?

mongodb

1 Answers

  1. Services need special support to work with systemd's socket activation. The connection is passed via file handles at startup and the service should check if environment variable LISTEN_FDS is set. At the moment mongodb does not support this kind of invocation. The path /usr/lib/systemd/system/mongodb.socket would be technically correct, but for custom unit files /etc/systemd/system/mongodb.socket should be preferred.

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