[CalendarServer-users] Adding a new "role" to the Calendar Server DB?

Scott Cherf cherf at ambient-light.com
Mon Sep 16 12:24:05 PDT 2013


For the record too, this release of caldavd (4.2) has been working flawlessly on MacOS 10.6.8 running on a Mac Mini serving 6 clients for the past 3 months and may very well have saved my marriage :)

For anyone interested in a simple way to autostart the daemon on a MacOS client machine (not MacOS Server), I gave up on trying to use launchctl and just wrote a simple shell script I run as a "login item" from an account that's configured for auto-login on the server:

#!/bin/sh

cd ~matinee/CalendarServer/tags/release/4.2/
./run -nd

Brut force, but it works fine if you have an auto-login configured. In my case the machine is my home theater media server and it's configured to boot into Front Row using a restricted account named "matinee" that doesn't have permission to do anything. When I talked about running with different "permissions" this is what I meant. The original install was done from an admin level account, which is why I wanted to move it.

Scott.

On Sep 16, 2013, at 11:50 AM, Andre LaBranche wrote:

> Forgot to cc the list on the resolution.
> 
> -dre
> 
> On Sep 16, 2013, at 10:47 AM, Andre LaBranche <dre at apple.com> wrote:
> 
>> 
>> On Sep 14, 2013, at 9:41 PM, Scott Cherf <cherf at ambient-light.com> wrote:
>> 
>>> Hi Andre -
>>> 
>>> Thanks for the step by step guide, it all makes sense and like you I don't have postgres installed systemwide either. In my install it's in the directory above the CalendarServer (version 4.2) in CalendarServer/tags/release. Using the commands from that location gives me an error:
>>> 
>>> psql: could not connect to server: No such file or directory
>>> 	Is the server running locally and accepting
>>> 	connections on Unix domain socket "/tmp/.s.PGSQL.5432"? 
>>> 
>>> 
>>> The CalendarServer is running and so is postgres but the socket mentioned in the error doesn't exist. Is there a way from me to tell psql how to connect to the DB?
>> 
>> Yep; that /tmp location is the default for postgres, but we stash it someplace a bit more unique. Start the service, then get a list of running postgres processes:
>> 
>> ps auxww | grep -i postgres
>> 
>> You should see one something like this:
>> 
>> ... /Volumes/whatever/Users/andre/work/icalserver/trunk/postgresql-9.2.4/_root/bin/postgres -c listen_addresses= -k /tmp/ccs_postgres_6c305e5a2a6852bf7f384e044de707ec -c shared_buffers=49 -c max_connections=33 -c standard_conforming_strings=on
>> 
>> The value after the -k switch is the path to our postgres socket file, which you can use as the value for the -h option of postgres command line tools. For example:
>> 
>> andre at xomg[postgresql-9.2.4/_root]./bin/psql -U caldav -h /tmp/ccs_postgres_6c305e5a2a6852bf7f384e044de707ec --list
>>                                List of databases
>>    Name    | Owner  | Encoding |   Collate   |    Ctype    | Access privileges 
>> -----------+--------+----------+-------------+-------------+-------------------
>>  caldav    | caldav | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
>>  postgres  | caldav | UTF8     | en_US.UTF-8 | en_US.UTF-8 | 
>>  template0 | caldav | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/caldav        +
>>            |        |          |             |             | caldav=CTc/caldav
>>  template1 | caldav | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/caldav        +
>>            |        |          |             |             | caldav=CTc/caldav
>> (4 rows)
>> 
>> HTH,
>> -dre
>> 
>> 
>>> 
>>> This is a MacOS 10.6.8 installation.
>>> 
>>> Regards,
>>> Scott.
>>> 
>>> On Sep 13, 2013, at 11:30 AM, Andre LaBranche wrote:
>>> 
>>>> 
>>>> On Sep 13, 2013, at 8:26 AM, Scott Cherf <cherf at ambient-light.com> wrote:
>>>> 
>>>>> Does anyone have a cheap trick for adding a "role" to the postgres DB CalendarServer uses? I installed the server under one user ID and wanted to move it to another but had to export the data, reinstall then import so I could run it with different permissions. There must be a simple way to just add a new role to the DB but it wasn't obvious?
>>>> 
>>>> Official docs are here: http://www.postgresql.org/docs/9.2
>>>> 
>>>> It’s hard for me to predict what your exact steps would need to be, but one simple approach would be:
>>>> 
>>>> * create the new user (role) in postgres
>>>> * grant the new user the same rights as the existing user
>>>> 
>>>> Example below. Note that in this example, I don’t have postgres installed system-wide (it’s installed to ~/pg), which is why I’m saying ./bin/psql instead of just psql. YMMV. I’m also not setting any passwords for the new role; if your postgres service can be reached over the network, you may want passwords.
>>>> 
>>>> # First, list the current roles.
>>>> 
>>>> {38} admin at linuxbuilder [~/pg] % ./bin/psql template1 -c '\du'
>>>>                              List of roles
>>>>  Role name |                   Attributes                   | Member of 
>>>> -----------+------------------------------------------------+-----------
>>>>  admin     | Superuser, Create role, Create DB, Replication | {}
>>>>  caldav    | Superuser, Create role, Create DB              | {}
>>>> 
>>>> Let’s assume caldav is the ‘old’ account.
>>>> 
>>>> 
>>>> # Create a new role, validate it
>>>> 
>>>> {39} admin at linuxbuilder [~/pg] % ./bin/createuser newman      
>>>> {40} admin at linuxbuilder [~/pg] % ./bin/psql template1 -c '\du'
>>>>                              List of roles
>>>>  Role name |                   Attributes                   | Member of 
>>>> -----------+------------------------------------------------+-----------
>>>>  admin     | Superuser, Create role, Create DB, Replication | {}
>>>>  caldav    | Superuser, Create role, Create DB              | {}
>>>>  newman    |                                                | {}
>>>> 
>>>> 
>>>> # Give newman the same access as caldav, validate it.
>>>> 
>>>> {41} admin at linuxbuilder [~/pg] % ./bin/psql template1 -c 'grant caldav to newman'
>>>> GRANT ROLE
>>>> {42} admin at linuxbuilder [~/pg] % ./bin/psql template1 -c '\du'                   
>>>>                              List of roles
>>>>  Role name |                   Attributes                   | Member of 
>>>> -----------+------------------------------------------------+-----------
>>>>  admin     | Superuser, Create role, Create DB, Replication | {}
>>>>  caldav    | Superuser, Create role, Create DB              | {}
>>>>  newman    |                                                | {caldav}
>>>> 
>>>> Note that newman is now shown as a member of caldav. This means newman is allowed to do all the things that the caldav role can do. You don’t need to delete the caldav role.
>>>> 
>>>> Also, be advised that postgres roles and permissions are not at all related to filesystem permissions or system user accounts; except that if you don’t supply a postgres username when connecting, it will pick your current system user account name as the default.
>>>> 
>>>> HTH,
>>>> -dre
>>> 
>>> Regards,
>>> Scott Cherf
>>> 
>>> Villa Montagne Equestrian B&B
>>> 
>>> 28495 Big Basin Way,
>>> Boulder Creek, CA
>>> 95006
>>> 
>>> www.villamontagne.us.com
>>> 
>> 
> 
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