Cache size used in named should be configurable

[Hari Prasad Killi]

Max cache size used by named should be configurable via contrail-dns config file.

This value will be used for the following:

max-cache-size defines the maximum amount of memory to use for the server's cache, in bytes (case insensitive shortforms of k or m are allowed). When the amount of data in the cache reaches this limit, the server will cause records to expire prematurely so that the limit is not exceeded. In a server with multiple views, the limit applies separately to the cache of each view. The default is unlimited, meaning that records are purged from the cache only when their TTLs expire. This statement may be used in view or a global options clause.

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/13718
Submitter: Hari Prasad Killi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/13718
Committed: http://github.org/Juniper/contrail-controller/commit/f43697f5abbacc331dc322da83f6f5fcb0ff9f8a
Submitter: Zuul
Branch: R2.20

commit f43697f5abbacc331dc322da83f6f5fcb0ff9f8a
Author: Hari <email address hidden>
Date: Wed Sep 9 23:40:39 2015 +0530

Take max cache size for named from the config file.

update this value in generated contrail-named.conf file.

Change-Id: I873adcc1ba8962dfe295b897195c03c50b2cc49c
closes-bug: 1493957

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/13797
Submitter: Hari Prasad Killi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/13918
Submitter: Hari Prasad Killi (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/13918
Committed: http://github.org/Juniper/contrail-controller/commit/359ef499055f7dac2e8ef16c19785d01a601804a
Submitter: Zuul
Branch: master

commit 359ef499055f7dac2e8ef16c19785d01a601804a
Author: Hari <email address hidden>
Date: Wed Sep 9 23:40:39 2015 +0530

Take max cache size for named from the config file.

update this value in generated contrail-named.conf file.

Change-Id: I873adcc1ba8962dfe295b897195c03c50b2cc49c
closes-bug: 1493957
(cherry picked from commit f43697f5abbacc331dc322da83f6f5fcb0ff9f8a)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/13797
Committed: http://github.org/Juniper/contrail-controller/commit/0e5967d6954b5c520f077db975f61b171a611b6b
Submitter: Zuul
Branch: R2.0

commit 0e5967d6954b5c520f077db975f61b171a611b6b
Author: Hari <email address hidden>
Date: Mon Sep 14 22:47:03 2015 +0530

Take max cache size for named from the config file.

update this value in generated contrail-named.conf file.

Change-Id: I3956690440fe2f82bcc07effb0d231f7f9cb3be6
closes-bug: 1493957