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From Geoff Higginbottom <geoff.higginbot...@shapeblue.com>
Subject Re: How can I allocate a specific IP when I create an instance.
Date Thu, 27 Jun 2013 00:50:31 GMT
Hi Dave,

Thanks for the update on that, it's good to see it's got easier since I last tested it.

Regards

Geoff Higginbottom
CTO / Cloud Architect


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geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com> | www.shapeblue.com

ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS



On 26 Jun 2013, at 15:45, "Dave Dunaway" <dave.dunaway@gmail.com<mailto:dave.dunaway@gmail.com>>
wrote:

I've done testing on changing IPs with 3.0.4 CloudPlatform in advanced
networking and never had to reboot the VR. Seems a  bit silly to have to go
that far just to re-ip a machine. When the machine is restarted from
CloudPlatorm it will add its IP to the dhcp leases file correctly as
expected on the VR. Perhaps it was requirement back then, but does not
appear to be the case with more recent versions.


On Wed, Jun 26, 2013 at 5:16 PM, Geoff Higginbottom <
geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>> wrote:

@Dave: you are right about advanced networks but the original question was
in relation to basic networking.

@All: I did some testing over a year ago around changing IPs for guest.
For a VM on and advanced network you can edit the IP directly in the
database but restarting the VM is not enough, you have to also restart the
virtual Router for that network.

The new 4.1 add NIC API call Dave is referring to is great and to me one
of the best new features of 4.1, but again it's only for advanced
networking so no good for the original problem.

The multiple IPs to a single NIC has been discussed a lot, but I believe
it is still in development.

Regards

Geoff Higginbottom
CTO / Cloud Architect

D: +44 20 3603 0542<tel:+442036030542> | S: +44 20 3603 0540<tel:
+442036030540>| M: +447968161581<tel:+447968161581>

geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com><mailto:geoff.higginbottom@shapeblue.com>
|www.shapeblue.com<http://www.shapeblue.com> | Twitter:@shapeblue<https://twitter.com/#!/shapeblue>

ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS


On 26 Jun 2013, at 11:22, "Dave Dunaway" <dave.dunaway@gmail.com<mailto:dave.dunaway@gmail.com><mailto:
dave.dunaway@gmail.com<mailto:dave.dunaway@gmail.com>>> wrote:

@Geoff: Of course we are talking advanced networking, and having
consideration of what your networks are that you can use. If someone wants
to put a 10.x.x.x ip on a VM that is on a 192.x.x.x network, then they can
gladly shoot themselves in the foot. Ideally the person making such a
change understands the 'basic's of advanced networking in CloudPlatform.
Otherwise they should stick the UI.;)

@Jason: Look in the cloud.nics table. The nics for VMs are defined here.
Modify as needed. A restart of the VM to make sure it all works is highly
recommended.

In our testing environment I can move a VM from one network to another, add
nics, change IP's etc quite easily. Some of the 4.1 API will add this
functionality (add nics for example to an existing VM). But there's still a
lot of immutable things in CloudPlatform that shouldn't be, and  that maybe
one day will be a feature. We just need to make the requests for those
features.






On Wed, Jun 26, 2013 at 1:30 PM, Jason Pavao <jason.pavao@oracle.com<mailto:jason.pavao@oracle.com>
<mailto:jason.pavao@oracle.com>> wrote:

Do you by chance have a sample sql query that would perform this?



On 6/26/2013 8:51 AM, Dave Dunaway wrote:

There should be a way to have the ability to reserve an IP and still have
DHCP assign the IP by mac reservation. There's no technical reason this
wouldn't work and likely a feature a lot of people would love to see. The
only hold back is the UI not allowing you to do so.

Ultimately, you can go to the DB and change the VM's IP in the nics table
to what you want (reboot the VM and the IP change will occur). Which is
not
the preferred way to do so, but ultimately that functionality from the UI
would be ideal.

Even going as far as intergrating IPAM functionality into the product
would
be ideal.


On Wed, Jun 26, 2013 at 11:44 AM, Geoff Higginbottom <
geoff.higginbottom@shapeblue.**com <geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>
<mailto:geoff.higginbottom@shapeblue.com>>>
wrote:

Simple answer - you can't.

In an advanced zone, you can specify the IP address when you create a new
VM using the API, however in a basic zone, because the IP will depend on
which POD your VM ends up in, and as a user you cannot influence this,
there is no way to specific the IP, even if you are a root admin.

The reason it still fails when you manually change the IP is that the
security groups feature is expecting the VM to have the IP CloudStack
allocated it via DHCP.

Regards

Geoff Higginbottom
CTO / Cloud Architect


D: +44(0)20 3603 0542<tel:+442036030542> | S: +44(0)20 3603 0540<tel:
+442036030540> | M: +44(0)7968161581<tel:+447968161581>

geoff.higginbottom@shapeblue.**com <geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com>
<mailto:geoff.higginbottom@shapeblue.com>>
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geoff.higginbottom@shapeblue.com<mailto:geoff.higginbottom@shapeblue.com><mailto:geoff.higginbottom@shapeblue.com>>

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On 26 Jun 2013, at 05:02, "WXR" <474745079@qq.com<http://qq.com><http://qq.com><
http://qq.**com<http://qq.com>>>
wrote:

cloudstack version: 4.1
network type: basic network

When I create a new instance,the vm will get a random IP from the DHCP
server on vrouter.

If I want to:
1.allocate a specific ip to the vm.
2.allocate multiple ips to the vm.
3.change the vm ip from one to another.

How can I achieve it? I try to bind the ip to the vm nic manually but the
ip can not be accessed.
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--
Thanks.
-Jason


This email and any attachments to it may be confidential and are intended
solely for the use of the individual to whom it is addressed. Any views or
opinions expressed are solely those of the author and do not necessarily
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
company incorporated in England & Wales. ShapeBlue Services India LLP is
operated under license from Shape Blue Ltd. ShapeBlue is a registered
trademark.

This email and any attachments to it may be confidential and are intended solely for the use
of the individual to whom it is addressed. Any views or opinions expressed are solely those
of the author and do not necessarily 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 company incorporated in England
& Wales. ShapeBlue Services India LLP is operated under license from Shape Blue Ltd. ShapeBlue
is a registered trademark.

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