Makes template use stable coreos ami.
Makes template use stable coreos ami.

pachyderm/pfs,sambooo/pachyderm,kunthar/pachyderm,henrylee2cn/pachyderm,alexdebrie/pachyderm,phacops/pachyderm,pachyderm/pfs,sambooo/pachyderm,klucar/pachyderm,kunthar/pachyderm,henrylee2cn/pachyderm,wideioltd/pachyderm,pachyderm/pfs,wideioltd/pachyderm,ShengjieLuo/pachyderm,ShengjieLuo/pachyderm,klucar/pachyderm,alexdebrie/pachyderm,ShengjieLuo/pachyderm,sambooo/pachyderm,klucar/pachyderm,alexdebrie/pachyderm,phacops/pachyderm