Saurav,
Have you tried checking the meta-data for the VM to see what is there. Maybe
you can get the additional IPs and statically assign them.
metadata=`grep dhcp-server-identifier /var/lib/dhc*/dhclient.eth0.leases | grep
-Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' | tail -1`
curl http://$metadata/latest/meta-data/public-ipv4
curl http://$metadata/latest/meta-data/local-ipv4
curl http://$metadata/latest/meta-data/
On Jun 20, 2014, at 8:27 AM, Saurav Lahiri <[email protected]> wrote:
> :-). Once again thanks for the helpful inputs. And sure i will check the
> AWS templates.
>
> Saurav
>
>
> On Fri, Jun 20, 2014 at 8:44 PM, Shanker Balan <[email protected]>
> wrote:
>
>> Comments inline.
>>
>> On 20-Jun-2014, at 7:25 pm, Saurav Lahiri <[email protected]>
>> wrote:
>>
>>> Hello Shanker,
>>> Appreciate ur inputs. Also I would like to know whats the best practice
>> in
>>> pre-populating the interfaces file given that it is not known how many
>>> additional nics users might want to create on their vms. If we
>> pre-populate
>>> eth0 to eth4 with dhcp method in the template will that break anything?
>>
>> Running DHCP on multiple interfaces can cause the default gateway
>> to switch. This has caused me a lot of PITA on AWS EC2 instances.
>>
>> I now statically assign the IP Addressed on the non primary interfaces. As
>> far
>> as template creation goes, I only check for eth0. Its upto the end user
>> to decide how he wants to get his additional interfaces up.
>>
>> If you can, check a AWS CentOS/Ubuntu template on how they handle it.
>>
>>
>>
>>
>>
>>>
>>> Thanks
>>> Saurav
>>>
>>>
>>> On Fri, Jun 20, 2014 at 9:33 AM, Shanker Balan <
>> [email protected]>
>>> wrote:
>>>
>>>> Comments inline.
>>>>
>>>> On 19-Jun-2014, at 7:55 pm, Saurav Lahiri <[email protected]>
>>>> wrote:
>>>>
>>>>> Hello,
>>>>> We are running an ubuntu 13.10 vm. In addition to the default network,
>>>>> another nic has been added to the vm. Now when the vm boots up, the
>> new
>>>>> interface eth1 is seen inside the guest but does not have an ip
>> address.
>>>>> Executing a "dhclient eth1" does get the correct IP.
>>>>>
>>>>> A look at the "/etc/network/interaces" file shows an entry
>>>> corresponding
>>>>> to the eth0. There is no entry for eth1. On adding an entry for eth1,
>>>> the
>>>>> problems appears to get fixed.
>>>>>
>>>>> Is this manual step to add the additional nics in the interfaces file
>>>>> missing in the documentation or is this a bug ?
>>>>>
>>>>> =======
>>>>> auto eth0
>>>>> iface eth0 inet dhcp
>>>>> ==========
>>>>
>>>>
>>>> This is change that needs to be done by the creator of the template.
>>>> CloudStack
>>>> does not make any changes internal to the template as it does not
>> (should
>>>> not)
>>>> have access to it.
>>>>
>>>>
>>>> --
>>>> @shankerbalan
>>>>
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>>
>> M: +91 98860 60539 | O: +91 (80) 67935867
>> [email protected] | www.shapeblue.com | Twitter:@shapeblue
>> ShapeBlue Services India LLP, 22nd floor, Unit 2201A, World Trade Centre,
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>>
>> Find out more about ShapeBlue and our range of CloudStack related services
>>
>> IaaS Cloud Design & Build<
>> http://shapeblue.com/iaas-cloud-design-and-build//>
>> CSForge – rapid IaaS deployment framework<http://shapeblue.com/csforge/>
>> CloudStack Consulting<http://shapeblue.com/cloudstack-consultancy/>
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>> represent those of Shape Blue Ltd or related companies. If you are not the
>> intended recipient of this email, you must neither take any action based
>> upon its contents, nor copy or show it to anyone. Please contact the sender
>> if you believe you have received this email in error. Shape Blue Ltd is a
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>>
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