Dear All... 1) I'm running Openstack Havana with Neutron.
---*--- 2) In my setup, I have two networks configured, a private and a public one. # nova net-list +--------------------------------------+---------+------+ | ID | Label | CIDR | +--------------------------------------+---------+------+ | 44a731ad-72c9-4915-9bb6-a6c86e37449c | private | - | | 82c1ff14-8922-4985-9153-5b9e18d81803 | public | - | +--------------------------------------+---------+------+ ---*---3) I can only start a machine using nova client if I specify the network, otherwise, it returns "ERROR: Multiple possible networks found, use a Network ID to be more specific"
a) # nova boot --flavor 2 --image fe16c307-86d3-4cdc-b2e9-09bc0e9603e0 Test2 ERROR: Multiple possible networks found, use a Network ID to be more specific. (HTTP 400) (Request-ID: req-15da2328-29a5-4290-aec7-1f4a68aaa793)
b) # nova boot --flavor 2 --image fe16c307-86d3-4cdc-b2e9-09bc0e9603e0 --nic net-id=44a731ad-72c9-4915-9bb6-a6c86e37449c Test2
+--------------------------------------+--------------------------------------------------+| Property | Value |
+--------------------------------------+--------------------------------------------------+| OS-DCF:diskConfig | MANUAL | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-SRV-ATTR:host | - | | OS-EXT-SRV-ATTR:hypervisor_hostname | - | | OS-EXT-SRV-ATTR:instance_name | instance-0000002b | | OS-EXT-STS:power_state | 0 | | OS-EXT-STS:task_state | scheduling | | OS-EXT-STS:vm_state | building | | OS-SRV-USG:launched_at | - | | OS-SRV-USG:terminated_at | - |
| accessIPv4 | | | accessIPv6 | || adminPass | W2g3EbpXTgDG |
| config_drive | || created | 2014-08-06T16:02:55Z | | flavor | m1.small (2) |
| hostId | || id | 6a9d2e80-f883-4d9b-addb-e974ec18c138 | | image | Fedora 19 (fe16c307-86d3-4cdc-b2e9-09bc0e9603e0) | | key_name | - | | metadata | {} | | name | Test2 | | os-extended-volumes:volumes_attached | [] | | progress | 0 | | security_groups | default | | status | BUILD | | tenant_id | 28d05f91417d4cef9859bd68b0b45830 | | updated | 2014-08-06T16:02:56Z | | user_id | 31f7fd90395d4de1beda8bc44928503e |
+--------------------------------------+--------------------------------------------------+ ---*---4) I do not understand why it is mandatory to start a machine with a network interface already attached. As far as I know, this was not the case when nova-network was used.
My underlying problem with the way this is working now is that I'm part of a cloud federation, which provides rocci clients to the users. Currently, using rocci, users start a VM and then attach a network to it in two different steps. There is no way to do these two operations in rocci in the same step. As a consequence, they can not start machines when we have an OpenStack with Neutron.
---*---5) Finally, I wonder if there is a way to actually establish a default network. The desired behaviour would be to associate a VM to a default network, if nothing is stated otherwise.
Thank you for any help Cheers Goncalo
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