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From Jayapal Reddy Uradi <>
Subject Re: [PROPOSAL] DHCP/DNS offload and config drive support for adv zone shared network
Date Mon, 23 Mar 2015 08:55:34 GMT
To start this feature we are going with only shared network.
Once it is done for shared network, it can be generalised for all the networks and
external providers can be added at this point.
The external provider does not have any thing to implement.


On 21-Mar-2015, at 12:46 AM, Alena Prokharchyk <> wrote:

> From the FS:
> "Create empty network offering with no service selected. Only DHCP, DNS
> services are provided by external servers.
>    Metadata - information is included in the config drive
>    Userdata, vm password, ssh key - If these are passed then included in
> the config drive with user data service."
> "Retrieving IP assigned by external DHCP server to userVM. Store it in CS
> DB."
> Why not just introduce the notion of the external provider for the
> DHCP/DNS/UserData service? Not specifying the services on the offering and
> implementing the service and storing the service data - UserData/MetaData
> and IP  - in the CloudStack DB, is confusing. Unless all the
> metadata/userdata is stored/managed on/by the external provider side.
> On Fri, Mar 20, 2015 at 6:20 AM, Adrian Lewis <>
> wrote:
>> Can't see the wiki at the moment as it's down for maintenance but on a
>> slightly different but related note, would it be feasible to use DHCP relay
>> functionality in dnsmasq on a VR and still get the IP address assigned by
>> an
>> external DHCP server registered into the ACS MS? Not quite sure if under
>> normal circumstances ACS picks up the IP from dnsmasq or if ACS manages the
>> pool and sends dnsmasq static leases. If it's picking up what dnsmasq
>> decides to lease out, what is this mechanism and does/would it also work
>> for
>> DHCP relay?
>> This doesn’t solve the issue of a DHCP server on the same network however
>> and would still require a VR on the network with upstream connectivity to
>> the DHCP server.
>> I'm definitely definitely up for the concept of simple networks with no VR
>> if we can provision some of the essentials without one. Big +1
>> -----Original Message-----
>> From: Nux! []
>> Sent: 20 March 2015 09:34
>> To:
>> Subject: Re: [PROPOSAL] DHCP/DNS offload and config drive support for adv
>> zone shared network
>> +1, good idea
>> One thing though:  let's make the config drive available for all types of
>> zones, many people use the basic or adsg zones.
>> Lucian
>> --
>> Sent from the Delta quadrant using Borg technology!
>> Nux!
>> ----- Original Message -----
>>> From: "Jayapal Reddy Uradi" <>
>>> To:
>>> Sent: Friday, 20 March, 2015 09:12:19
>>> Subject: [PROPOSAL]  DHCP/DNS offload and config drive support for adv
>>> zone shared network
>>> In advanced zone shared network if someone wants to use DHCP server
>>> outside the cloudstack, currently it can be done by not selecting the
>>> DHCP service But the problem here is that the VM actual ip is
>>> different from what cloudstack showing.
>>> If there are no services selected for the network offering there is no
>>> need of the VR.
>>> In the absense of VR there should be way to provide password,
>>> userdata/metadata, ssh keys to user vm.
>>> With this feature we can do the following.
>>> 1. Create network without VR.
>>> 2. Retrive the IP from the VM and update it in the cloudstack DB.
>>> 3. Add config drive support for the VMs in this network.
>>> Please provide your comments for the below FS.
>>> ACS ticket:
>>> FS:
>>> 797
>>> Thanks,
>>> Jayapal
> -- 
> Alena Prokharchyk

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