** Bug watch added: Red Hat Bugzilla #1577947 https://bugzilla.redhat.com/show_bug.cgi?id=1577947
** Also affects: cloud-init (CentOS) via https://bugzilla.redhat.com/show_bug.cgi?id=1577947 Importance: Unknown Status: Unknown ** No longer affects: cloud-init (CentOS) -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/1736174 Title: update_hostname module fails on CentOS/RHEL with systemd Status in cloud-init: New Bug description: Cloud provider: OpenStack #cloud-config hostname: somehostname.somedomain fqdn: somehostname.somedomain __init__.py[INFO]: /var/lib/cloud/data/previous-hostname differs from /etc/hostname, assuming user maintained hostname. Error message is a little bit misleading, since when uses_systemd(), /etc/hostname isn't actually read, instead, the result of util.subp(['hostname']) is used. Also, this comparison/test will never succeed, because when uses_systemd() and filename.endswitch('/previous-hostname'), the return is stripped of cr/lf, however, the result of util.subp(['hostname']) will contain a lf, and it is not being stripped: (from rhel.py) if self.uses_systemd() and filename.endswith('/previous-hostname'): return util.load_file(filename).strip() elif self.uses_systemd(): (out, _err) = util.subp(['hostname']) if len(out): return out else: return default The simplest solution appears to be to add .strip() to return out; but this fix may have other implications. To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1736174/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp