Description of problem:

Sahara database migration is creating sahara-server.db in /var/lib/sahara. As the sahara directory have sahara.sahara owner/group, the database file have root.root as an owner set by sahara-db-manage.
Due to this, any write (INSERT) attempt to the database ends with error like:

OperationalError: (OperationalError) attempt to write a readonly database u'INSERT INTO node_group_templates (created_at, updated_at, id, name, description, tenant_id, flavor_id, image_id, plugin_name, hadoop_version, node_processes, node_configs, volumes_per_node, volumes_size, volume_mount_prefix, floating_ip_pool) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)' ('2014-05-27 11:32:26.741107', None, u'a7591a2a-de8b-4d1f-9909-c66a1e885e16', u'node-group-template', u'', u'6809bd3836de4440a06a6c89a865cdc4', u'1', None, u'vanilla', u'1.2.1', '["namenode", "datanode", "secondarynamenode", "oozie", "tasktracker", "jobtracker", "hiveserver"]', '{"HDFS": {}, "JobFlow": {}, "MapReduce": {}, "Hive": {}}', 0, 0, '/volumes/disk', None)

Version-Release number of selected component (if applicable):
openstack-sahara.noarch-2014.1.0-13.fc20

How reproducible:
100%

Steps to Reproduce:
1. configure sahara to use sqlite
2. create/migrate database with sahara-db-manage --config-file /etc/sahara/sahara.conf upgrade head
3. # ls -la /var/lib/sahara/sahara-server.db -rw-r--r--. 1 root root 46080 May 22 10:26 /var/lib/sahara/sahara-server.db

Actual results:
database with bad owner/group is in read-only mode for sahara daemon

Expected results:
database file should have sahara.sahara owner