Yolanda Robla 740b9fb254 Use sudo to write dhcp hosts
The directory is created with root ownership, but then the files
are added by bifrost user. This causes to fail with permission denied.
Adding become: yes to execute this task with sudo powers.

Change-Id: Ia792033eef3553e05ca2d5df4b25cb64c7a009cb
2015-12-16 15:18:41 +01:00
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