Mongodb upstart script

[Tom]

Thanks Even.

I will read through the cookbook and hopefully it will indeed answer
my questions.

About the su command, I read that this was the only way to run a
process as an unprivileged user with upstart here:
http://superuser.com/questions/213416/running-upstart-jobs-as-unprivileged-users

"A future release of Upstart will have native support for that, but
for now, you can use something like:

exec su -s /bin/sh -c 'exec "$0" "$@"' username -- /path/to/command
[parameters...]"

Is there a better way of doing this nowadays?

Tom

2012/3/17 Evan Huus <eapache at gmail.com>:
> Hi Tom,
>
> As per the upstart cookbook [1], you'll likely need a few extra stanzas.
>
> According to the 'expect' section [2] you'll probably need to add 'expect
> daemon' to allow upstart to track the proper process ID when mongodb forks
> in order to daemonize.
>
> Also, I'm not sure what you're trying to do with the "su -s /bin/sh -c
> exec". If you're trying to change users [3] you probably shouldn't be using
> su. If you need the program to be run in a shell environment for some
> reason, you can simply use 'script' [4] instead of exec. If you're simply
> using it to fork so that it daemonizes properly instead of only forking
> once, you can change 'expect daemon' to 'expect fork' and upstart will track
> the process ID correctly.
>
> There are a lot of good resources in the cookbook [1], so hopefully it will
> answer any other questions you might have.
>
> Cheers,
> Evan
>
> [1] http://upstart.ubuntu.com/cookbook/
> [2] http://upstart.ubuntu.com/cookbook/#expect
> [3] http://upstart.ubuntu.com/cookbook/#changing-user
> [4] http://upstart.ubuntu.com/cookbook/#script
>
> On Sat, Mar 17, 2012 at 7:32 AM, Tom <tommedema at gmail.com> wrote:
>>
>> Hi folks,
>>
>> I'm trying to run mongod as a deamon using upstart under the
>> unprivileged mongouser account.
>>
>> The following appears to work great:
>>
>> # Mongodb Ubuntu upstart file at /etc/init/mongodb.conf
>>
>> description "MongoDB deamon"
>>
>> pre-start script
>>    mkdir -p /home/mongouser/data/db
>>    mkdir -p /home/mongouser/data/logs
>> end script
>>
>> start on runlevel [2345]
>> stop on runlevel [06]
>>
>> exec su -s /bin/sh -c 'exec "$0" "$@"' mongouser --
>> /home/mongouser/Applications/mongodb/bin/mongod --fork --journal
>> --nohttpinterface --dbpath /home/mongouser/data/db --logpath
>> /home/mongouser/data/logs/mongodb.log --logappend --port 30000
>>
>> ------------
>>
>> When I reboot the system mongod indeed starts properly. However, here
>> are the issues:
>> 1. when I do sudo status mongodb I get "stop/waiting" even though it is
>> running
>> 2. when I do sudo start mongodb it starts the deamon again, even
>> though mongod is already running.
>>
>> Can anyone tell me what is going wrong here?
>>
>> --
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>
>