[RFE] doing AXFR based on TSIG for internal, external view

[hamza]

The designate allow

* adding TSIG keys to a zone like tsig-key1, tsig-key1
* response to zone transfer AXFR coming with tsig-key1, tsig-key2

but it has no ability to do internal, external views based on the tsig-keys of AXFR

for example if AXFR request with tsig-external the designate mdns will return the external view
and if tsig-internal the designate mdns will return the internal view

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/748285

[hamza (alqtaishat)]

there was multiple patches to achieve this
[split view in AXFR]
https://review.opendev.org/#/c/748285/

[PDNS adding TASIG through pool.yaml]
https://review.opendev.org/755361

[signed notifications]
https://review.opendev.org/755379

[tempest test]
https://review.opendev.org/755876

[documentation]
https://review.opendev.org/#/c/754226/

[OpenStack Infra (hudson-openstack)]

Change abandoned by "Erik Olof Gunnar Andersson <email address hidden>" on branch: master
Review: https://review.opendev.org/c/openstack/designate/+/748285