[one-users] Using CloudInit for contextualization

Javier Fontan jfontan at opennebula.org
Thu Feb 6 09:28:20 PST 2014


If I remember correctly the file is /var/lib/cloud/instance/user-data.
I've been also checking the log files but there's nothing interesting
to me.

In case you want to run cloud-init manually you can use:

# cloud-init -d init --local


On Thu, Feb 6, 2014 at 5:26 PM, Wilma Hermann <wilma.hermann at gmail.com> wrote:
> Good to hear that the problem is reproducible. I was really about to doubt
> myself. Can't be so hard to get a config file right ;)
>
> Where is that user data file stored in the VM? Maybe you could tell me,
> where you would continue to debug. Maybe I can help you out.
>
> Greetings
> Wilma
>
>
> 2014-02-06 Javier Fontan <jfontan at opennebula.org>:
>
>> I've been trying the image and I could not make the user data work.
>> Cloud-init is able to get networking options and configures the
>> network but it doesn't restart it so the changes make any effect. It
>> is also able to get the user data and writes it to the user data file
>> used later for configuration but it does nothing with it. It could be
>> a problem with the cloud-init configuration in that machine.
>>
>> I'll do more debugging as soon as I get some time.
>>
>> On Tue, Feb 4, 2014 at 1:19 PM, Javier Fontan <jfontan at opennebula.org>
>> wrote:
>> > I'll try to test that image and will let you know what I can find.
>> >
>> > On Tue, Feb 4, 2014 at 1:18 PM, Wilma Hermann <wilma.hermann at gmail.com>
>> > wrote:
>> >> No, I never touched that file. It's current setting is
>> >>
>> >> DISK     = [ driver = "raw" , cache = "none"]
>> >>
>> >> I also tried converting the Ubuntu Image to qcow and raw using qemu-img
>> >> to
>> >> make sure it is no problem with the image format. That also didn't
>> >> change
>> >> anything.
>> >>
>> >>
>> >> 2014-02-04 Javier Fontan <jfontan at opennebula.org>:
>> >>>
>> >>> It's a long shot but do you have the default image set to qcow2? In
>> >>> '/etc/one/vmm_exec/vmm_exec_kvm.conf':
>> >>>
>> >>> DISK     = [ driver = "qcow2" ]
>> >>>
>> >>> If this is the case change it to raw, restart oned and try again. The
>> >>> image already has the driver set to qcow2 so it should work.
>> >>>
>> >>> On Tue, Feb 4, 2014 at 11:48 AM, Wilma Hermann
>> >>> <wilma.hermann at gmail.com>
>> >>> wrote:
>> >>> > I also tried it with the current Alpha 2 of Ubuntu 14.04 which
>> >>> > includes
>> >>> > cloud-init 0.7.5, but it does not work either. You can find the
>> >>> > output
>> >>> > of
>> >>> > onevm and oneimage attached.
>> >>> >
>> >>> > Thanks in advance
>> >>> > Wilma
>> >>> >
>> >>> > 2014-02-04 Javier Fontan <jfontan at opennebula.org>:
>> >>> >
>> >>> >> It should be working. Can you send us the output of "onevm show -x
>> >>> >> <vmid>" of one of those machines?
>> >>> >>
>> >>> >> On Mon, Feb 3, 2014 at 6:17 PM, Wilma Hermann
>> >>> >> <wilma.hermann at gmail.com>
>> >>> >> wrote:
>> >>> >> > Hi,
>> >>> >> >
>> >>> >> > I'm using the release image from yesterday (02-Feb-2014 03:39)
>> >>> >> > [1].
>> >>> >> > And
>> >>> >> > the
>> >>> >> > machine uses cloud-init 0.7.3:
>> >>> >> >
>> >>> >> > # virt-cat one-42 /var/log/cloud-init.log | grep running
>> >>> >> > 2014-02-03 15:18:56,873 - util.py[DEBUG]: Cloud-init v. 0.7.3
>> >>> >> > running
>> >>> >> > 'init-local' at Mon, 03 Feb 2014 15:18:56 +0000. Up 4.48 seconds.
>> >>> >> >
>> >>> >> > [1]: http://cloud-images.ubuntu.com/releases/13.10/release/
>> >>> >> >
>> >>> >> > Thanks in advance
>> >>> >> > Wilma
>> >>> >> >
>> >>> >> > 2014-02-03 Javier Fontan <jfontan at opennebula.org>:
>> >>> >> >
>> >>> >> >> 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
>> >>> >> >
>> >>> >> >
>> >>> >>
>> >>> >>
>> >>> >>
>> >>> >> --
>> >>> >> 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
>> >>
>> >>
>> >
>> >
>> >
>> > --
>> > 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
>
>



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



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