Comment 2 for bug 1246485

I am facing the exact same issue on CentOS 6.5 and RHEL 6.5 on AWS with cloud-init-7.4.2-2.el6.noarch from EPEL.

Before booting:

  [root@testcase6 ~]# hostname
  testcase6
  [root@testcase6 ~]# hostname -s
  testcase6
  [root@testcase6 ~]# hostname -f
  testcase6.deltaforce.io

After booting:

  [root@testcase6 ~]# hostname
  testcase6.deltaforce.io
  [root@testcase6 ~]# hostname -s
  testcase6
  [root@testcase6 ~]# hostname -f
  testcase6.deltaforce.io

Note the difference in the first hostname commands.

I will try/merge the submitted patch and see if that works for me.

( IMO hostname consitency before/after booting is important. In my situation this generates issues with tools like puppet/mcollective/etc. )