[ovirt-users] yaml cloud-init custom scripts

[Nathanaël Blanchet]

Le 02/06/2014 13:25, Shahar Havivi a écrit :
> On 02.06.14 13:07, Nathanaël Blanchet wrote:
>> Le 01/06/2014 20:00, Shahar Havivi a écrit :
>>> On 01.06.14 11:20, Omer Frenkel wrote:
>>>> ----- Original Message -----
>>>>> From: "Nathanaël Blanchet" <blanchet at abes.fr>
>>>>> To: "users" <users at ovirt.org>
>>>>> Sent: Friday, May 30, 2014 6:49:34 PM
>>>>> Subject: [ovirt-users] yaml  cloud-init custom scripts
>>>>>
>>>>> Hello,
>>>>>
>>>>> I've been unsuccessfully trying to make work a custom yalm script with the
>>>>> cloud-init option in 3.4.1.
>>>>> All other native UI parameters are correctly configured (hostname...)
>>>>>
>>>>> My goal is to change the keyboard layout:
>>>>> write_files:
>>>>> - content: |
>>>>> # My new /etc/sysconfig/keyboard file
>>>>> KEYTABLE="fr"
>>>>> MODEL="pc105"
>>>>> LAYOUT="fr"
>>>>> KEYBOARDTYPE="pc"
>>>>> path: /etc/sysconfig/keyboard
>>>>> permissions: '0644'
>>>>>
>>>>> I can't see what is wrong and there is nothing into cloud-init logs on the
>>>>> guest (/var/log/clou-init-output.log).
>>>> isn't it in /var/log/cloud-init.log ?
>>>>
>>>>> Is it possible to see the whole yalm file generated by the engine somewhere?
>>>>>
>>>> the cloud init data is attached to the vm as a cd-rom
>>>> you can mount it locally and look inside the drive name is config-2 (look for it with blkid)
>>>> for me on fedora 19 it always appear in /dev/sr1
>>> First look at the mounted content as Omer suggested and take a look if the YAML
>>> output as you expected.
>>> You can also try to set the data that is written in the "custom script"
>>> commit:
>>> http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=commit;h=d46ebd8712f369b924e199b82197e59568a686ff
>>> see if adding this content is working for your setup:
>>> write_files:
>>> -   content: |
>>>          # some file content
>>>      path: /root/myfile
>>>
>>> This sample was tested and worked under RHEL 6 and Fedora 19.
>>> Please note that you need to add a tab/4 spaces as shown above.
>>>
>>> What OS and what version of cloud-init you are using?
>> that's it, I finally managed to make it work after many an many tests, that
>> wasn't so trivial.
>> First I followed your advices and I successfully tested the sample script
>> you suggested without modify it. Then each time I attempted to add a line to
>> the same file, it wasn't executed anymore. I read the file with cat -T
>> /media/openstack/latest/user_data and then noticed that the lines weren't
>> uniformly formated : some were with tab and other ones with 8 spaces.
>> Following "Please note that you need to add a tab/4 spaces as shown above" I
>> added tab on every lines related to content of the file, but it didn't work.
>> I began again with only 8 spaces and then it ran.
>> Seems YAML to be very format sensitive and it is not clear enough when
>> begining this kind of job, so that I hope my leak will help many other ones.
>> I think the custom script field in the UI is not helpful because it is
>> impossible to insert a line, when doing a CR it leads to the end of file,
>> and it is a behaviour which easily leads to format error. It could be a good
>> idea to refuse validating OK if any tab is detected there.
>> Can I have your feeling about this?
> The problem was the CR at the end of the "custom script" field, or any CR?
any CR in the field leads to the end on the script
>>>>> --
>>>>> Nathanaël Blanchet
>>>>>
>>>>> Supervision réseau
>>>>> Pôle exploitation et maintenance
>>>>> Département des systèmes d'information
>>>>> 227 avenue Professeur-Jean-Louis-Viala
>>>>> 34193 MONTPELLIER CEDEX 5
>>>>> Tél. 33 (0)4 67 54 84 55
>>>>> Fax  33 (0)4 67 54 84 14 blanchet at abes.fr
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at ovirt.org
>>>> http://lists.ovirt.org/mailman/listinfo/users
>> -- 
>> Nathanaël Blanchet
>>
>> Supervision réseau
>> Pôle exploitation et maintenance
>> Département des systèmes d'information
>> 227 avenue Professeur-Jean-Louis-Viala
>> 34193 MONTPELLIER CEDEX 5 	
>> Tél. 33 (0)4 67 54 84 55
>> Fax  33 (0)4 67 54 84 14
>> blanchet at abes.fr
>>

-- 
Nathanaël Blanchet

Supervision réseau
Pôle exploitation et maintenance
Département des systèmes d'information
227 avenue Professeur-Jean-Louis-Viala
34193 MONTPELLIER CEDEX 5 	
Tél. 33 (0)4 67 54 84 55
Fax  33 (0)4 67 54 84 14
blanchet at abes.fr