Eduardo Gonzalez 029de18d0b Add ssh-keyscan to unblock kolla-ansible gate
As a change to remove puppet from infra nodepool,
ssh-keyscan is needed for each node.[0]

Host key checking was disabled by default by jenkins
user. [1]

Refs:
[0] http://lists.openstack.org/pipermail/openstack-dev/2017-April/116036.html
[1] https://review.openstack.org/#/c/460731/
Change-Id: I0f4000f18b7a2b3266c95c3f7a5109e3603c94a7
2017-04-28 13:16:20 +00:00
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