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From Nux! <...@li.nux.ro>
Subject Re: AW: AW: AW: AW: cloud-init and user-data/meta-data
Date Fri, 11 Mar 2016 11:32:14 GMT
Yes indeed.
Put a script in /var/lib/cloud/scripts/per-boot, it will be executed at every boot (hopefully
after networking is up).
In it you could inspect /var/lib/dhcp/blah for the full hostname or domain name and amend
/etc/hosts as you need.

HTH
Lucian

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

----- Original Message -----
> From: "S. Brüseke - proIO GmbH" <s.brueseke@proio.com>
> To: users@cloudstack.apache.org
> Sent: Friday, 11 March, 2016 10:59:58
> Subject: AW: AW: AW: AW: cloud-init and user-data/meta-data

> But DHCP will not alter /etc/hosts as far as I know.
> 
> By per-boot hack you mean to write a script and run it via cloud-init at boot
> time?
> 
> Mit freundlichen Grüßen / With kind regards,
> 
> Swen
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: Nux! [mailto:nux@li.nux.ro]
> Gesendet: Freitag, 11. März 2016 11:54
> An: users@cloudstack.apache.org; S. Brüseke - proIO GmbH
> Betreff: Re: AW: AW: AW: cloud-init and user-data/meta-data
> 
> I am using cloud-init in the templates, but as I said I have not looked that
> much into it. I just let DHCP do its job.
> I would look at the per-boot scripts hack. :)
> 
> --
> Sent from the Delta quadrant using Borg technology!
> 
> Nux!
> www.nux.ro
> 
> ----- Original Message -----
>> From: "S. Brüseke - proIO GmbH" <s.brueseke@proio.com>
>> To: users@cloudstack.apache.org
>> Sent: Friday, 11 March, 2016 10:50:04
>> Subject: AW: AW: AW: cloud-init and user-data/meta-data
> 
>> To me it looks like CS needs to extend the user-data/meta-data with "hostname".
>> 
>> Are you using cloud-init in your templates? How to you edit /etc/hosts
>> with correct values?
>> 
>> Mit freundlichen Grüßen / With kind regards,
>> 
>> Swen
>> 
>> 
>> -----Ursprüngliche Nachricht-----
>> Von: Nux! [mailto:nux@li.nux.ro]
>> Gesendet: Freitag, 11. März 2016 11:38
>> An: users@cloudstack.apache.org; S. Brüseke - proIO GmbH
>> Betreff: Re: AW: AW: cloud-init and user-data/meta-data
>> 
>> Swen,
>> 
>> I am not very familiar with it, but unless they have a proper module
>> in place to deal with DHCP as they do with the hosts file, you can
>> always add a script in /var/lib/cloud/scripts/per-boot to check the
>> dhcp info in /var/lib/dhcp and perform stuff based on it.
>> Not exactly kosher, but hey ..
>> 
>> --
>> Sent from the Delta quadrant using Borg technology!
>> 
>> Nux!
>> www.nux.ro
>> 
>> ----- Original Message -----
>>> From: "S. Brüseke - proIO GmbH" <s.brueseke@proio.com>
>>> To: users@cloudstack.apache.org
>>> Sent: Friday, 11 March, 2016 10:34:22
>>> Subject: AW: AW: cloud-init and user-data/meta-data
>> 
>>> yes, but cloud-init is rewriting the /etc/hosts file and it does not
>>> have access to DHCP information or does it?
>>> 
>>> Mit freundlichen Grüßen / With kind regards,
>>> 
>>> Swen
>>> 
>>> 
>>> -----Ursprüngliche Nachricht-----
>>> Von: Nux! [mailto:nux@li.nux.ro]
>>> Gesendet: Freitag, 11. März 2016 11:31
>>> An: S. Brüseke - proIO GmbH
>>> Cc: users@cloudstack.apache.org
>>> Betreff: Re: AW: cloud-init and user-data/meta-data
>>> 
>>> Ah I see.
>>> Well, afaik the fqdn should be provided via DHCP, right?
>>> 
>>> --
>>> Sent from the Delta quadrant using Borg technology!
>>> 
>>> Nux!
>>> www.nux.ro
>>> 
>>> ----- Original Message -----
>>>> From: "S. Brüseke - proIO GmbH" <s.brueseke@proio.com>
>>>> To: "Nux!" <nux@li.nux.ro>, users@cloudstack.apache.org
>>>> Sent: Friday, 11 March, 2016 10:29:41
>>>> Subject: AW: cloud-init and user-data/meta-data
>>> 
>>>> Hi Lucian,
>>>> 
>>>> no, local-hostname will provide only the hostname without the domain
>>>> name (network name).
>>>> But this is how it is documented in cloud-init:
>>>> https://github.com/number5/cloud-init/blob/master/doc/examples/cloud
>>>> -
>>>> c
>>>> onfig.txt
>>>> line 433 - 439
>>>> 
>>>> But I need the whole fqdn.
>>>> 
>>>> Mit freundlichen Grüßen / With kind regards,
>>>> 
>>>> Swen
>>>> 
>>>> 
>>>> -----Ursprüngliche Nachricht-----
>>>> Von: Nux! [mailto:nux@li.nux.ro]
>>>> Gesendet: Freitag, 11. März 2016 11:22
>>>> An: users@cloudstack.apache.org; S. Brüseke - proIO GmbH
>>>> Betreff: Re: cloud-init and user-data/meta-data
>>>> 
>>>> Hi Swen,
>>>> 
>>>> From that page:
>>>> "local-hostname. The hostname of the VM"
>>>> 
>>>> Isn't that what you need?
>>>> 
>>>> Lucian
>>>> 
>>>> --
>>>> Sent from the Delta quadrant using Borg technology!
>>>> 
>>>> Nux!
>>>> www.nux.ro
>>>> 
>>>> ----- Original Message -----
>>>>> From: "S. Brüseke - proIO GmbH" <s.brueseke@proio.com>
>>>>> To: users@cloudstack.apache.org
>>>>> Sent: Friday, 11 March, 2016 09:27:09
>>>>> Subject: cloud-init and user-data/meta-data
>>>> 
>>>>> Hi to all,
>>>>> 
>>>>> I am testing cloud-init in our CS installation.
>>>>> 
>>>>> I want to recreate /etc/hosts on first boot so I use "manage_etc_hosts:
true".
>>>>> The recreation works but it looks like the fqdn is not provided by CS.
>>>>> As far as I understand cloud-init uses user-data/meta-data to get
>>>>> all needed information. For fqdn it uses meta-data "hostname"
>>>>> (https://github.com/number5/cloud-init/blob/master/doc/examples/clo
>>>>> u
>>>>> d
>>>>> -
>>>>> config.txt
>>>>> line 441 - 445).
>>>>> 
>>>>> Now my problem: CS do not provide "hostname" in meta-data.
>>>>> (http://docs.cloudstack.apache.org/projects/cloudstack-administration/en/latest/virtual_machines.html#user-data-and-meta-data).
>>>>> Where do I get the correct domain name from?
>>>>> 
>>>>> Mit freundlichen Grüßen / With kind regards,
>>>>> 
>>>>> Swen
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> - proIO GmbH -
>>>>> Geschäftsführer: Swen Brüseke
>>>>> Sitz der Gesellschaft: Frankfurt am Main
>>>>> 
>>>>> USt-IdNr. DE 267 075 918
>>>>> Registergericht: Frankfurt am Main - HRB 86239
>>>>> 
>>>>> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
>>>>> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail
>>>>> irrtümlich erhalten haben, informieren Sie bitte sofort den
>>>>> Absender und vernichten Sie diese Mail.
>>>>> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail
>>>>> sind nicht gestattet.
>>>>> 
>>>>> This e-mail may contain confidential and/or privileged information.
>>>>> If you are not the intended recipient (or have received this e-mail
>>>>> in
>>>>> error) please notify the sender immediately and destroy this e-mail.
>>>>> Any unauthorized copying, disclosure or distribution of the
>>>>> material in this e-mail is strictly forbidden.
>>>> 
>>>> 
>>>> - proIO GmbH -
>>>> Geschäftsführer: Swen Brüseke
>>>> Sitz der Gesellschaft: Frankfurt am Main
>>>> 
>>>> USt-IdNr. DE 267 075 918
>>>> Registergericht: Frankfurt am Main - HRB 86239
>>>> 
>>>> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
>>>> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail
>>>> irrtümlich erhalten haben, informieren Sie bitte sofort den Absender
>>>> und vernichten Sie diese Mail.
>>>> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail
>>>> sind nicht gestattet.
>>>> 
>>>> This e-mail may contain confidential and/or privileged information.
>>>> If you are not the intended recipient (or have received this e-mail
>>>> in
>>>> error) please notify the sender immediately and destroy this e-mail.
>>>> Any unauthorized copying, disclosure or distribution of the material
>>>> in this e-mail is strictly forbidden.
>>> 
>>> 
>>> - proIO GmbH -
>>> Geschäftsführer: Swen Brüseke
>>> Sitz der Gesellschaft: Frankfurt am Main
>>> 
>>> USt-IdNr. DE 267 075 918
>>> Registergericht: Frankfurt am Main - HRB 86239
>>> 
>>> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
>>> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail
>>> irrtümlich erhalten haben, informieren Sie bitte sofort den Absender
>>> und vernichten Sie diese Mail.
>>> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail
>>> sind nicht gestattet.
>>> 
>>> This e-mail may contain confidential and/or privileged information.
>>> If you are not the intended recipient (or have received this e-mail
>>> in
>>> error) please notify the sender immediately and destroy this e-mail.
>>> Any unauthorized copying, disclosure or distribution of the material
>>> in this e-mail is strictly forbidden.
>> 
>> 
>> - proIO GmbH -
>> Geschäftsführer: Swen Brüseke
>> Sitz der Gesellschaft: Frankfurt am Main
>> 
>> USt-IdNr. DE 267 075 918
>> Registergericht: Frankfurt am Main - HRB 86239
>> 
>> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
>> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich
>> erhalten haben, informieren Sie bitte sofort den Absender und
>> vernichten Sie diese Mail.
>> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail
>> sind nicht gestattet.
>> 
>> This e-mail may contain confidential and/or privileged information.
>> If you are not the intended recipient (or have received this e-mail in
>> error) please notify the sender immediately and destroy this e-mail.
>> Any unauthorized copying, disclosure or distribution of the material
>> in this e-mail is strictly forbidden.
> 
> 
> - proIO GmbH -
> Geschäftsführer: Swen Brüseke
> Sitz der Gesellschaft: Frankfurt am Main
> 
> USt-IdNr. DE 267 075 918
> Registergericht: Frankfurt am Main - HRB 86239
> 
> Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen.
> Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten
> haben,
> informieren Sie bitte sofort den Absender und vernichten Sie diese Mail.
> Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail sind nicht
> gestattet.
> 
> This e-mail may contain confidential and/or privileged information.
> If you are not the intended recipient (or have received this e-mail in error)
> please notify
> the sender immediately and destroy this e-mail.
> Any unauthorized copying, disclosure or distribution of the material in this
> e-mail is strictly forbidden.

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