Hi Geert,
Assuming you're using an Ubuntu instance, what do you see in the
/var/lib/dhcp/dhclient.leases file? It may be named dhclient.ethX.leases. In
there would be lease information provided by dnsmasq. Is the 'option routers'
line there? It may also be helpful to see what dnsmasq is configured to send on
the network node. You may want to restart neutron-dhcp-agent on the network
node and see if that resolves it.
James
________________________________
From: Geert Willems <wille...@milieuinfo.be>
Sent: Wednesday, April 8, 2015 5:55 AM
To: openstack@lists.openstack.org
Subject: [Openstack] Neutron vxlan-setup: new instance does not get the correct
network config
Hi,
I just got a manual install/conbfiguration of openstack Juno up and running
under Ubuntu 14.04 as a POC.
POC-details:
* 1 controller node
* 1 network node
* 1 compute node
* ceph-storage
* neutron vxlan-config
Here extra detailed info of what we have configured in neutron and nova:
root@controller:~# neutron net-list
+--------------------------------------+------------+-------------------------------------------------------+
| id | name | subnets
|
+--------------------------------------+------------+-------------------------------------------------------+
| f3091d1f-db16-4294-96ac-3ed1dd8d15f9 | ext-net |
95c8476b-167d-4e23-9fe1-3b0511775597 10.17.0.0/16 |
| e4c2d1a5-886b-47f0-9f40-c9bf4fce3d04 | goob-net |
2033252f-b19c-40ec-8845-81a48f99665d 10.19.0.0/16 |
| 91e11a9a-2b89-4ccc-ba77-ca8a2a2e4493 | test-net-1 |
84d3757d-a1df-4af1-87d3-10d4834e80a2 192.168.100.0/24 |
+--------------------------------------+------------+-------------------------------------------------------+
root@controller:~# neutron net-show 91e11a9a-2b89-4ccc-ba77-ca8a2a2e4493
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | 91e11a9a-2b89-4ccc-ba77-ca8a2a2e4493 |
| name | test-net-1 |
| provider:network_type | vxlan |
| provider:physical_network | |
| provider:segmentation_id | 8201 |
| router:external | False |
| shared | False |
| status | ACTIVE |
| subnets | 84d3757d-a1df-4af1-87d3-10d4834e80a2 |
| tenant_id | a9fd57125a50463e866490caf820efdc |
+---------------------------+--------------------------------------+
root@controller:~# neutron net-show f3091d1f-db16-4294-96ac-3ed1dd8d15f9
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | f3091d1f-db16-4294-96ac-3ed1dd8d15f9 |
| name | ext-net |
| provider:network_type | flat |
| provider:physical_network | external |
| provider:segmentation_id | |
| router:external | True |
| shared | True |
| status | ACTIVE |
| subnets | 95c8476b-167d-4e23-9fe1-3b0511775597 |
| tenant_id | a9fd57125a50463e866490caf820efdc |
+---------------------------+--------------------------------------+
root@controller:~# neutron subnet-list
+--------------------------------------+---------------+------------------+--------------------------------------------------------+
| id | name | cidr |
allocation_pools |
+--------------------------------------+---------------+------------------+--------------------------------------------------------+
| 95c8476b-167d-4e23-9fe1-3b0511775597 | ext-subnet | 10.17.0.0/16 |
{"start": "10.17.1.1", "end": "10.17.255.254"} |
| 2033252f-b19c-40ec-8845-81a48f99665d | goob-subnet | 10.19.0.0/16 |
{"start": "10.19.1.1", "end": "10.19.255.254"} |
| 84d3757d-a1df-4af1-87d3-10d4834e80a2 | test-subnet-1 | 192.168.100.0/24 |
{"start": "192.168.100.100", "end": "192.168.100.150"} |
+--------------------------------------+---------------+------------------+--------------------------------------------------------+
root@controller:~# neutron subnet-show 84d3757d-a1df-4af1-87d3-10d4834e80a2
+-------------------+--------------------------------------------------------+
| Field | Value |
+-------------------+--------------------------------------------------------+
| allocation_pools | {"start": "192.168.100.100", "end": "192.168.100.150"} |
| cidr | 192.168.100.0/24 |
| dns_nameservers | 10.17.0.2 |
| enable_dhcp | True |
| gateway_ip | 192.168.100.1 |
| host_routes | |
| id | 84d3757d-a1df-4af1-87d3-10d4834e80a2 |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | test-subnet-1 |
| network_id | 91e11a9a-2b89-4ccc-ba77-ca8a2a2e4493 |
| tenant_id | a9fd57125a50463e866490caf820efdc |
+-------------------+--------------------------------------------------------+
root@controller:~# nova list
+--------------------------------------+-------------+--------+------------+-------------+----------------------------+
| ID | Name | Status | Task State |
Power State | Networks |
+--------------------------------------+-------------+--------+------------+-------------+----------------------------+
| 261ebe35-19bf-4f4f-8fdf-1548b5a94874 | test-node-1 | ACTIVE | - |
Running | test-net-1=192.168.100.103 |
+--------------------------------------+-------------+--------+------------+-------------+----------------------------+
root@controller:~# nova show 261ebe35-19bf-4f4f-8fdf-1548b5a94874
+--------------------------------------+----------------------------------------------------------+
| Property | Value
|
+--------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig | AUTO
|
| OS-EXT-AZ:availability_zone | nova
|
| OS-EXT-SRV-ATTR:host | dc2-ch1-bl4
|
| OS-EXT-SRV-ATTR:hypervisor_hostname | dc2-ch1-bl4.cumuli.be
|
| OS-EXT-SRV-ATTR:instance_name | instance-0000001b
|
| OS-EXT-STS:power_state | 1
|
| OS-EXT-STS:task_state | -
|
| OS-EXT-STS:vm_state | active
|
| OS-SRV-USG:launched_at | 2015-04-08T09:35:45.000000
|
| OS-SRV-USG:terminated_at | -
|
| accessIPv4 |
|
| accessIPv6 |
|
| config_drive |
|
| created | 2015-04-08T09:34:57Z
|
| flavor | m1.small (2)
|
| hostId |
6bfb7295f3afb27611d2c47f214325fa8231e26afa734b932b53b2d4 |
| id | 261ebe35-19bf-4f4f-8fdf-1548b5a94874
|
| image | Ubuntu_14.04-base
(4b0497d4-b508-4249-8a2a-3b0376aa5aca) |
| key_name | -
|
| metadata | {}
|
| name | test-node-1
|
| os-extended-volumes:volumes_attached | []
|
| progress | 0
|
| security_groups | default
|
| status | ACTIVE
|
| tenant_id | a9fd57125a50463e866490caf820efdc
|
| test-net-1 network | 192.168.100.103
|
| updated | 2015-04-08T09:35:46Z
|
| user_id | a89fb1a5f42c40159d50af3acc57349d
|
+--------------------------------------+----------------------------------------------------------+
root@controller:~# neutron agent-list
+--------------------------------------+--------------------+-------------+-------+----------------+---------------------------+
| id | agent_type | host |
alive | admin_state_up | binary |
+--------------------------------------+--------------------+-------------+-------+----------------+---------------------------+
| fe33fe6b-450d-4dbb-8224-c4561456ee39 | L3 agent | dc2-ch1-bl5 | :-)
| True | neutron-l3-agent |
| 19d78778-31d4-47ac-a58a-b6ae84d53cf6 | Metadata agent | dc2-ch1-bl5 | :-)
| True | neutron-metadata-agent |
| 8cdcf571-a04c-4b05-973a-997724b63e8c | Open vSwitch agent | dc2-ch1-bl5 | :-)
| True | neutron-openvswitch-agent |
| 8593e080-0c41-4e3c-96d6-7d1848de552d | DHCP agent | dc2-ch1-bl5 | :-)
| True | neutron-dhcp-agent |
| 04dd2466-63f2-4732-a9bf-f825d77e57f9 | Open vSwitch agent | dc2-ch1-bl4 | :-)
| True | neutron-openvswitch-agent |
+--------------------------------------+--------------------+-------------+-------+----------------+---------------------------+
root@controller:~# neutron agent-show 8cdcf571-a04c-4b05-973a-997724b63e8c
+---------------------+--------------------------------------------+
| Field | Value |
+---------------------+--------------------------------------------+
| admin_state_up | True |
| agent_type | Open vSwitch agent |
| alive | True |
| binary | neutron-openvswitch-agent |
| configurations | { |
| | "arp_responder_enabled": false, |
| | "tunneling_ip": "10.20.0.53", |
| | "devices": 3, |
| | "l2_population": false, |
| | "tunnel_types": [ |
| | "vxlan" |
| | ], |
| | "enable_distributed_routing": false, |
| | "bridge_mappings": { |
| | "external": "br-ex", |
| | "goob": "br-goob" |
| | } |
| | } |
| created_at | 2015-03-17 14:53:21.264050 |
| description | |
| heartbeat_timestamp | 2015-04-08 10:22:51.524701 |
| host | dc2-ch1-bl5 |
| id | 8cdcf571-a04c-4b05-973a-997724b63e8c |
| started_at | 2015-04-07 09:24:53.927501 |
| topic | N/A |
+---------------------+--------------------------------------------+
root@dc2-kvm1:~# neutron agent-show 04dd2466-63f2-4732-a9bf-f825d77e57f9
+---------------------+--------------------------------------------+
| Field | Value |
+---------------------+--------------------------------------------+
| admin_state_up | True |
| agent_type | Open vSwitch agent |
| alive | True |
| binary | neutron-openvswitch-agent |
| configurations | { |
| | "arp_responder_enabled": false, |
| | "tunneling_ip": "10.20.0.52", |
| | "devices": 1, |
| | "l2_population": false, |
| | "tunnel_types": [ |
| | "vxlan" |
| | ], |
| | "enable_distributed_routing": false, |
| | "bridge_mappings": {} |
| | } |
| created_at | 2015-03-18 08:00:45.637023 |
| description | |
| heartbeat_timestamp | 2015-04-08 10:48:32.826381 |
| host | dc2-ch1-bl4 |
| id | 04dd2466-63f2-4732-a9bf-f825d77e57f9 |
| started_at | 2015-04-08 09:33:37.871259 |
| topic | N/A |
+---------------------+--------------------------------------------+
The problem with our instance is that it does not get the default gateway
configured correctly.
During startup of the instance I could see following messages:
[X]
[X]
When I manually add the default router 192.168.100.1, it all seems to work
well, but I wonder why this is not the case during boot by dhcp.
Regards,
Willemgf
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