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Puppet module for postgresql

Basic usage

To install the client software

class {'postgresql':  }

To specify a particular version

class {'postgresql':
    version => '9.1',
}

To install the server

class {'postgresql::server': }

By default, the system-wide locale is assumed to be en_US.UTF-8. If the locale is not installed or available, you can specify an alternative:

class { 'postgresql::server':
    locale => 'es_ES.UTF-8',
}

Again, a particular version

class {'postgresql::server':
	version => '9.1',
}

Listen on a specific post / IP address

class {'postgresql::server':
	listen => ['192.168.0.1', ],
	port   => 5432,
}

To allow a remote host to connect to the server, now that you are listening on the Internet.

class {'postgresql::server':
    listen => ['192.168.0.1', ],
    port   => 5432,
    acl    => ['host all all 192.168.0.2/32 md5', ],
}

Refer to the pg_hba.conf docs for the specifics of what each possible ACL field can be set to. In some situations you made need to insert the ACL in front of any existing one. The variable preacl exists for this purpose.

To create a database owned by a user

postgresql::db { 'myuser':
    password => 'mypassword',
}

This will create myuser and then create a database called myuser which will owned by myuser. You can override the default locale and encoding and, if required, specify a different owner. For example:

postgresql::db { 'mydatabase':
    owner    => 'myuser',
    password => 'mypassword',
    locale   => 'en_AU.UTF-8',
    encoding => 'C',
}

A common scenario is installing PostGIS, and then having a database created with those features enabled. Postgresql does this with the concept of database templates. By default template0 is used as that allows us to override the locale and encoding if required. To create a database from a different template:

postgresql::db { 'mynextdb':
    owner    => 'anotheruser',
    password => 'anotherpass',
    template => 'template_postgis',
}

Read on, if your specific setup does not fall within this (admittedly simple) framework.

Create a user

This creates a role in the database cluster, by default the user is able to login and will inherit the permissions of any groups it is a member of.

pg_user {'pguser':
	ensure   => present,
	password => 'pgpassword',
}

To create users without passwords (such as for peer/ident authentication), simply leave off the 'password' key.

You can also modify other attributes like whether the user can create databases (createdb), create other roles (createrole) or is the superuser (superuser).

For example:

pg_user {'mighty_pguser':
    ensure     => present,
    password   => 'themightyone',
    createdb   => true,
    createrole => true,
}

Create a database

This creates a database and adds a dependancy relationship to the user

pg_database {'pgdb':
	ensure   => present,
	owner    => 'pguser',
	require  => Pg_user['pguser'],
}

The default is UTF-8 and en_US.UTF-8 for English. If required, you can also specify both the locale and encoding of a database.

As well, you can specify the base template

pg_database {'pgdb':
	ensure   => present,
	owner    => 'pguser',
	encoding => 'UTF8',
	locale   => 'de_DE.UTF-8',
	require  => Pg_user['pguser'],
	template => 'template1',
}

SSL Notes

SSL support is disabled by default. If you enable it, ensure that you have the appropriate server and root certificates, keys and revocations files already in place otherwise Postgresql will not start.

Additionally note that only Postgresql 9.2 (and later) allow you to configure the SSL files that the server will look for. Prior versions have hardcoded defaults.

Notes

This module will not (yet) update either the user or database once they have been initially created. i.e. changing the login permission of a user does not work. Nor does changing the locale of an existing database.

With Puppet version less than 3.0, you must enable pluginsync, so that the custom types are sent to each client.

Contributors

Copyright and License

Copyright 2012 Linuxpeak Pty Ltd.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.