[one-users] Using CloudInit for contextualization

Javier Fontan jfontan at opennebula.org
Mon Feb 3 09:08:22 PST 2014


Are you using a recent version of those images? OpenNebula support was
added in cloud-init 0.7.3 and the current images come with that
version. User data can be specified with USER_DATA or USERDATA
parameters so your configuration seems to be OK.

On Mon, Feb 3, 2014 at 5:54 PM, Wilma Hermann <wilma.hermann at gmail.com> wrote:
> Hi,
>
> Well, the core of the problem sounds logical to me. Nevertheless, I have to
> wait 2 minutes for the network initialization to time-out until I can reboot
> the machine using the CtrlAltDel-Button in VNC... That's not comfortable,
> but bearable.
>
> However, I cannot get that USER_DATA variable to work. Whatever I enter
> there, it is obviously ignored. I tried it with the exact code from the
> documentation you mentioned, but also with something like
>
> CONTEXT=[NETWORK="YES",SSH_PUBLIC_KEY="$USER[SSH_PUBLIC_KEY]",
>   USER_DATA="#cloud-config
> bootcmd:
>  - echo HelloWorld > /etc/issue
> " ]
>
> just to get a visual feedback that the USER_DATA is being used by
> cloud-init. None of it worked out.
>
> Is there a special trick with USER_DATA?
>
> Just in case that's important: I'm using OpenNebula 4.4 with libvirt/KVM.
>
> Thanks in advance
> Wilma
>
> 2014-01-30 Javier Fontan <jfontan at opennebula.org>:
>
>> Unfortunately the current version of cloud-init does not load new
>> network parameters after they are configured in some distributions.
>> There is a ticket to track that problem [1]
>>
>> The documentation gives some ideas on how to overcome this [2]:
>>
>> --8<------
>> The current version of cloud-init configures the network before
>> running cloud-init configuration. This makes the network configuration
>> not reliable. Until a new version that fixes this is released you can
>> add OpenNebula context packages or this user data to reboot the
>> machine so the network is properly configured.
>> ------>8--
>>
>> [1] https://bugs.launchpad.net/cloud-init/+bug/1225922
>> [2]
>> http://docs.opennebula.org/stable/user/virtual_machine_setup/cloud-init.html
>>
>> On Tue, Jan 28, 2014 at 1:56 PM, Wilma Hermann <wilma.hermann at gmail.com>
>> wrote:
>> > Hi,
>> >
>> > I'm trying to get a Ubuntu 13.10 guest to work, which uses a official
>> > Cloud-image (http://cloud-images.ubuntu.com/saucy/) as disk. However,
>> > the VM
>> > is not integrating into the virtual network. I've double checked the
>> > virtual
>> > network settings with CentOS-VMs, the network works correctly.
>> >
>> > I've found out that CloudInit writes a correct /etc/network/interfaces
>> > file
>> > with a static address, however, the machine somehow ignores this file
>> > and
>> > keeps sending DHCP requests without getting an answer (which is intended
>> > since we don't use DHCP in the VM's network).
>> >
>> > # virt-cat one-42 /etc/network/interfaces
>> > auto lo
>> > iface lo inet loopback
>> >
>> > auto eth0
>> > iface eth0 inet static
>> >   address 192.168.129.4
>> >   network 192.168.128.0
>> >   netmask 255.255.254.0
>> >   gateway 192.168.128.1
>> >
>> > # virt-cat one-42 /var/log/syslog | tail -6
>> > Jan 28 12:42:44 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
>> > port 67 interval 21 (xid=0x1080a577)
>> > Jan 28 12:43:05 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
>> > port 67 interval 13 (xid=0x1080a577)
>> > Jan 28 12:43:18 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
>> > port 67 interval 20 (xid=0x1080a577)
>> > Jan 28 12:43:38 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255
>> > port 67 interval 1 (xid=0x1080a577)
>> > Jan 28 12:43:39 ubuntu dhclient: No DHCPOFFERS received.
>> > Jan 28 12:43:39 ubuntu dhclient: No working leases in persistent
>> > database -
>> > sleeping.
>> >
>> > Does anybody know how the VM template needs to be configured in order to
>> > get
>> > it working?
>> >
>> > Thanks in advance
>> > Wilma
>> >
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users at lists.opennebula.org
>> > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>> >
>>
>>
>>
>> --
>> Javier Fontán Muiños
>> Developer
>> OpenNebula - The Open Source Toolkit for Data Center Virtualization
>> www.OpenNebula.org | @OpenNebula | github.com/jfontan
>
>



-- 
Javier Fontán Muiños
Developer
OpenNebula - The Open Source Toolkit for Data Center Virtualization
www.OpenNebula.org | @OpenNebula | github.com/jfontan


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