Select a database by adding it to ENABLED_SERVICE like the other
services. This greatly simplifies using the lib/* functions in
places other than stack.sh
Backward-compatibility is maintained or now (into havana at least).
Change-Id: I967e44603b4d69d5d70e1a75a9938172ca434025
Do not require every script that sources stackrc to also
source lib/databases.
* Move use_databases() to functions
* Set DATABASE_TYPE in stackrc
* Allow setting DATABASE_TYPE in localrc to work
(use_database() essentially just sets DATABASE_TYPE at this stage
so continuing to use it is equivalent)
* Validate DATABASE_TYPE in stack.sh.
* Change sudo to postgresql user to go through root to eliminate
password prompt
* fix use_database error condition
Change-Id: Ibb080c76e6cd7c6eebbb641a894d54b1dde78ca6
This patch adds an interface for supporting multiple database backend
types and implemnts support for PostgreSQL. It also adds a function,
use_exclusive_service, which serves as a base for enabling a service
that conflicts with other services. The use_database function uses it,
and it might also be useful for selecting messaging backends.
MySQL is still selected by default. Tested on Fedora 17 and Ubuntu
12.04 with MySQL and PostgreSQL. Implements blueprint postgresql-support
Change-Id: I4b1373e25676fd9a9809fe70cb4a6450a2479174
