BIND 10 #1842: Integrate the b10-dbutil into system start

[BIND 10 Development]

#1842: Integrate the b10-dbutil into system start
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            Reporter:  vorner        |                        Owner:
                Type:  task          |                       Status:  new
            Priority:  medium        |                    Milestone:  New
           Component:  Unclassified  |  Tasks
           Sensitive:  0             |                     Keywords:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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 Currently, if the database schema is old, the system starts, but will
 complain about the problem somewhere in the middle of logs. That is too
 late.

 We should integrate a call to `b10-dbutil --check` into the startup,
 before anything that would provide service is attempted and if it fails,
 don't attempt to start it. This task will probably need to be split into
 smaller ones:
  * Support for „synchronous“ commands in the boss (currently, a component
 is forked off and we don't care much any more until it fails, but this
 should start it and wait for the process to terminate, either successfully
 or fail).
  * Add support to dbutil to read the list of databases from configuration
 through the message queue.
  * Include the dbutil invocation in the guide how to enable and start
 auth.

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Ticket URL: <http://bind10.isc.org/ticket/1842>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development