thin install - systemD support #184

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strelec commented Jul 4, 2013

As discussed on google groups, many modern linux systems have migrated from old SystemVinit to SystemD, which makes our install script outdated

This is the commit that autodetects which one of them is in use and make the change appropriately.

p.s.: I have tried to conform to the existing coding style.

pothibo commented Aug 22, 2013

Are you your service is working fine? I tried your service file and it didn't work. I'm currently investigating.


macournoyer commented Sep 9, 2013

@pothibo did you get it working? If you got a working config, I'll integrate it into Thin.

pothibo commented Sep 9, 2013

Sorry I forgot about it. The issue with systemd and ruby is that there are tools like rvm, rbenv and such that handles ruby version. This is what was going on with my system.

I'm not sure what the best approach would be. Maybe you can give me some idea?

Right now, here's the service I'm using.

[Unit] Thin instance

ExecStart=/home/marmite/.gem/ruby/2.0.0/bin/thin start --ssl -R /srv/http/ -e production


pirj commented Dec 3, 2013

I would prefer starting thin in userspace, e.g. systemctl enable --user thin-marmite. This will allow running several thin servers on a single machine under different users, and there's no chance a security flaw in Rails or whatever will allow it taking the control over all the machine or even get to other app's data.

pothibo commented Dec 3, 2013

@pirj it was my understanding that setting a user & group would run the service as the specified user/group.

pirj commented Dec 4, 2013

@pothibo Makes sense

pirj commented Dec 4, 2013

I suggest file format strongly depends on how gems are bundled and is rvm installed.
I don't see any need in rvm in production, and install gems in the following way:

gem install bundler
bundle install --path ~/.gem

The following webapp.service works fine (start, stop, restart):

Description=Web application server

ExecStart=/home/app/.gem/ruby/2.0.0/bin/thin -d --user app -e production --chdir /home/app/app --socket /home/app/webapp.sock --pid /home/app/ --log /home/app/log/webapp.log start
ExecReload=/bin/kill -HUP $MAINPID
ExecStop=/bin/kill -QUIT $MAINPID


If I set Type=simple, it just doesn't start.

Should it listen to unix socket or port by default? Can we do both? Or is it a good idea to insist on socket usage?
What to do with people passionate about rvm on production? No idea here.

pothibo commented Dec 4, 2013

Honestly, I have no idea, I meant to submit a PR here for a long time, but there's two things that are bothering me.

ExecStart needs to include absolute path.
User/Group should be set to the user/group your web service runs on

Maybe it should try to find the correct paths and ask for the user for a confirmation?
And then ask the user for user/group?

I guess @macournoyer would be better positionned to answer those questions though.

@pothibo If you're using with rvm, rather than handling with 'thin install', you should follow this guide - .

FYI this systemd service works perfectly for me:

Description=A fast and very simple Ruby web server

ExecStart=/usr/local/bin/thin start --all /etc/thin/
ExecReload=/user/local/bin/thin restart --all /etc/thin/
ExecStop=/usr/local/bin/thin stop --all /etc/thin

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