On Apr 25, 2012, at 7:22 PM, Atul Gosain wrote: > Hi > > Thanks a lot for the responses. I still have some clarifications. > Openstack documentation states > (http://docs.openstack.org/trunk/openstack-compute/admin/content/hypervisor-configuration-basics.html) > Hypervisor Configuration Basics > > The node where the nova-compute service is installed and running is the > machine that runs all the virtual machines, referred to as the compute node > in this guide. > > This gave me an impression that nova-compute service has to be installed on > hypervisor(and not VM). > > Though from the links below, it seems that nothing needs to be installed on > ESX server for openstack to manage it, from the documentation > (http://wiki.openstack.org/XenServer/GettingStarted), it seems like this > package needs to be built on Ubuntu and then install on XenServer for it to > be managed by Openstack. > > Sorry for my confusion, but couldnt figure out from the documentation. > > ------------- > > Secondly, what i mainly wanted to know was that how does openstack assign IP > addresses to the new VMs it creates. If i see in the API's of individual > hypervisors Xen, HyperV etc doesnt provide any direct method of setting IP > address on the host, though they provide to set the MAC address. Cloudstack > uses an internal DHCP server to set the IP addresses in VM's for the assigned > MAC. > > I looked into the openstack code, it seems like the network configuration is > injected into the VM images. Is it true ? As i understand, these images are > stored on Glance server. How are these images installed on hypervisors by > openstack. It does need to have some software running on hypervisors to which > controller can push the image of the VM. >
It depends on the network mode, but the most common configuration uses a dhcp server as well. > Where does the network information get injected inside the image ? Is it on > the glance server or hypervisor ? > In the injected version (not recommended) it is injected after the image is downloaded from glance on the compute host. > > Thanks > > Atul
_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
