Re: How to Deal with files created dynamically
On Tue, Jul 27, 2010 at 3:26 PM, Chris Baines <cbaines8@gmail.com> wrote:
> On Wed, 2010-07-28 at 05:52 +1000, Matthew Palmer wrote:
>> On Tue, Jul 27, 2010 at 10:03:42AM -0500, Matt Zagrabelny wrote:
>> > On Tue, Jul 27, 2010 at 6:53 AM, Chris Baines <cbaines8@gmail.com> wrote:
>> > > Hello Mentors,
>> > >
>> > > I am looking at creating packages that involve programs that create
>> > > caches while running of images or other files. But I am a bit stumped at
>> > > what to do with the files they create, both where they are meant to go
>> > > and with what permissions.
>> >
>> > one of these two, I would wager:
>> >
>> > /var/cache/
>> > /var/lib
>>
>> Scratch /var/lib from that list. If the data can be recreated from another
>> source, then it's cache data and should *not* live in /var/lib.
>>
>> > As for the permissions
>> >
>> > root:root 644
>>
>> If the files are created by root-owned processes, sure. It kinda smells
>> like this is going to be done by a user-run process, which means you won't
>> be able to apply that ownership. You will probably have to revert to
>> per-user data stored in the homedir, unless you want to start stuffing
>> around with suid wrappers or some such.
>>
>> - Matt
>>
>
> Yes, the programs are run with user level permissions. While per user
> data would be a solution I don't want to use it just to make this
> easier. Are there any packages that deal with these problems?
You could create a group and then do something like:
addgroup newpackage
mkdir /var/cache/newpackage
chown root:newpackage /var/cache/newpackage
chmod 775 /var/cache/newpackage
New users who would use this package would need to be added to said group:
adduser joeuser newpackage
HTH,
-matt
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