According to RFC-1123 only digits and letters can be the first character in
hostname.

On Aug 24, 2016 8:55 PM, "Launchpad Bug Tracker" <email address hidden>
wrote:

> You have assigned this bug to yourself for mitaka:
>
> Detailed bug description:
>  If end user changes node hostname (no matter what role it is assigned) to
>  something that is starting from digit [0-9] or dash [-]. Then dnsmasq
> fails
>  to start on Fuel master node with error message:
>
> [root@nailgun log]# pgrep dnsmasq
> [root@nailgun log]# dnsmasq -k
> dnsmasq: bad DHCP host name at line 50 of /etc/dnsmasq.conf (line
> [root@nailgun log]# sed -n '50 p' /etc/dnsmasq.conf
> dhcp-host=net:x86_64,64:26:f7:65:b6:91,3-edon.test.domain.local,10.109.0.5
>
> Since all target nodes use Fuel master node as name server before
> l23network
> reconfigures their /etc/resolv.conf, all further environment deployements
> will
> fail.
>
> Steps to reproduce:
>  1. Create env with 1 controller.
>  2. Change controllers hostname to 1-edon:
>     press gear button on the Nodes pane
>     press pencil button and enter 1-edon into text field
>     hit enter
>  3. Press 'Deploy changes' on the Dashboard pane
>
> Expected results:
>  Cluster gets successfully deployed or input text field validates
>  that hostname cannot start with digit or dash.
>
> Actual result:
>  dnsmasq process on master node stops. Deployment stops.
> root@3-edon:~# fgrep 'err):' /var/log/puppet.log
> 2016-05-26 09:22:55 +0000 Puppet (err): getaddrinfo: Name or service not
> known at /etc/puppet/modules/osnailyfacter/manifests/fuel_pkgs/setup_repositories.pp:21
> on node 3-edon.test.domain.local
> 2016-05-26 09:22:55 +0000 Puppet (err): getaddrinfo: Name or service not
> known at /etc/puppet/modules/osnailyfacter/manifests/fuel_pkgs/setup_repositories.pp:21
> on node 3-edon.test.domain.local
> 2016-05-26 09:23:27 +0000 Puppet (err): getaddrinfo: Name or service not
> known at /etc/puppet/modules/osnailyfacter/manifests/fuel_pkgs/setup_repositories.pp:21
> on node 3-edon.test.domain.local
> 2016-05-26 09:23:27 +0000 Puppet (err): getaddrinfo: Name or service not
> known at /etc/puppet/modules/osnailyfacter/manifests/fuel_pkgs/setup_repositories.pp:21
> on node 3-edon.test.domain.local
> 2016-05-26 09:24:01 +0000 Puppet (err): getaddrinfo: Name or service not
> known at /etc/puppet/modules/osnailyfacter/manifests/fuel_pkgs/setup_repositories.pp:21
> on node 3-edon.test.domain.local
> 2016-05-26 09:24:01 +0000 Puppet (err): getadd
>
> Reproducibility:
>  100%
>
> Workaround:
>  Change hostname to something that is valid for dnsmasq configuration.
>  Manually edit (remove entry) from /etc/dnsmasq.conf on master node and
>  restart dns server.
>
> Impact:
>  No more environments can be deployed with master node, because nodes need
>  to resolve dns names with package mirrors.
>
> Description of the environment:
>  Operation system:
>  Ubuntu 14.04
>
>  Versions of components:
>  Fuel 9.0 #397
>  fuel-plugin-vmware-dvs-3.0-3.0.0-1-475.noarch.rpm
>  vCenter 5.5
>
> Additional information:
>  I tried to deploy plugin with vCenter as hypervisor and used Fuel VMware
> DVS plugin
>  as network backend for Neutron, but I seriously doubt that issue
> described above
>  is plugin specific.
>
> ** Affects: fuel
>      Importance: Medium
>      Assignee: Dmitry Teselkin (teselkin-d)
>          Status: Confirmed
>
> ** Affects: fuel/mitaka
>      Importance: Medium
>      Assignee: Maksim Malchuk (mmalchuk)
>          Status: Won't Fix
>
>
> ** Tags: area-library
> --
> Changing target node hostname to '3-edon' stops dnsmasq on Fuel master and
> breaks deployment process
> https://bugs.launchpad.net/bugs/1585992
> You received this bug notification because you are a bug assignee.
>