I can confirm this bug. If you place the previous-hostname file manually it stops changing the hostname on every reboot. As a workaround i installed cloud-init-0.7.5-6.el7 (epel).
I can confirm this bug. If you place the previous-hostname file manually it stops changing the hostname on every reboot. As a workaround i installed cloud-init- 0.7.5-6. el7 (epel).