[Openstack] LBaaS on Juno

Cristina Aiftimiei caifti at gmail.com
Sun May 3 19:44:59 UTC 2015


Hi James,

thank you very much for the answer!

On Sun, May 3, 2015 at 5:54 PM, James Denton <james.denton at rackspace.com>
wrote:

> Hi Christina,
>
> Is 131.154.96.28 configured as a floating IP and associated with the LB
> VIP port?
>

yes
#  neutron floatingip-list
 +--------------------------------------+------------------+---------------------+--------------------------------------+
| id                                   | fixed_ip_address |
floating_ip_address | port_id                              |
+--------------------------------------+------------------+---------------------+--------------------------------------+
| d04cb674-ae42-435f-be10-a66fd9f4ca4b | 10.0.1.10        |
131.154.96.20       | 3699ac91-6287-4b2b-a637-03eae03abde4 |
| e6448d37-3c26-4601-b4a5-a5e6b041af34 | 10.0.1.22        |
131.154.96.28       | b003b440-a092-409e-b329-eca38eada1f4 |

$ neutron lb-vip-list
+--------------------------------------+-------+-----------+----------+----------------+--------+
| id                                   | name  | address   | protocol |
admin_state_up | status |
+--------------------------------------+-------+-----------+----------+----------------+--------+
| 824c9ee7-c9bd-40fd-91ff-1f2b88372f95 | myvip | 10.0.1.22 | HTTP     |
True           | ACTIVE |
+--------------------------------------+-------+-----------+----------+----------------+--------+

$ neutron port-list |grep 1.22
+--------------------------------------+------------------------------------------+-------------------+----------------------------------------------------------------------------------+
| id                                   |
name                                     | mac_address       |
fixed_ips
|
+--------------------------------------+------------------------------------------+-------------------+----------------------------------------------------------------------------------+
| b003b440-a092-409e-b329-eca38eada1f4 |
vip-824c9ee7-c9bd-40fd-91ff-1f2b88372f95 | fa:16:3e:c9:58:a1 |
{"subnet_id": "df1dd585-2c59-49c4-b995-53d6cfa26e3c", "ip_address":
"10.0.1.22"} |


The NAT is configured on the router connected to the VIP network, in this
> case private_net.
>


> Can the router access the VIP 10.0.1.22? I’d start there.
>

how do I check this?
I can see:
# ip netns exec qrouter-0af31338-5aba-4dd3-9af5-6ba0050bea93 ip a |grep inet
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
    inet 131.154.96.19/24 brd 131.154.96.255 scope global qg-00604913-37
    inet 131.154.96.20/32 brd 131.154.96.20 scope global qg-00604913-37
    inet 131.154.96.28/32 brd 131.154.96.28 scope global qg-00604913-37
    inet6 fe80::f816:3eff:fe25:fb59/64 scope link
    inet 10.0.1.1/24 brd 10.0.1.255 scope global qr-3ed09227-5f
    inet6 fe80::f816:3eff:feeb:f81c/64 scope link

Thanks again,
Cristina

>
> James
>
>
>
> On May 1, 2015, at 4:21 PM, Cristina Aiftimiei <caifti at gmail.com> wrote:
>
> Dear all,
>
> I have a problem when configuring LBaaS in Juno.
> Our setup is an OpenStack Juno with 2 controller and 2 network nodes in
> HA, using HAproxy & Keepalived.
>
> After playing with the Havana version, where services were not in HA (just
> 1 controller and 1 network-node) and where everything was working as
> explained in all posts and blogs that I found around (mainly based on
> https://wiki.openstack.org/wiki/Neutron/LBaaS/HowToRun) I went on
> configuring in a similar way the Juno version.
>
> Everyting went fine until the last check "curl<vip-floating-ip>" that says
> "curl: (7) couldn't connect to host" (Connection timed out)
>
> Some details:
>
> $ neutron router-list
>
> +--------------------------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | id                                   | name     |
> external_gateway_info
> |
>
> +--------------------------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | 0af31338-5aba-4dd3-9af5-6ba0050bea93 | myrouter | {"network_id":
> "17d5949b-5694-4eab-abe0-c8039f0bd498", "enable_snat": true,
> "external_fixed_ips": [{"subnet_id":
> "825bc708-c4f9-4684-8c20-8bddf7e5aa7b", "ip_address": "131.154.96.19"}]} |
>
> +--------------------------------------+----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>
> $ neutron lb-pool-list
>
> +--------------------------------------+--------+----------+-------------+----------+----------------+--------+
> | id                                   | name   | provider | lb_method   |
> protocol | admin_state_up | status |
>
> +--------------------------------------+--------+----------+-------------+----------+----------------+--------+
> | 3ed76c5b-681b-46dc-80ac-83c6686adc18 | mypool | haproxy  | ROUND_ROBIN |
> HTTP     | True           | ACTIVE |
>
> +--------------------------------------+--------+----------+-------------+----------+----------------+--------+
>
> $ neutron lb-vip-list
>
> +--------------------------------------+-------+-----------+----------+----------------+--------+
> | id                                   | name  | address   | protocol |
> admin_state_up | status |
>
> +--------------------------------------+-------+-----------+----------+----------------+--------+
> | 824c9ee7-c9bd-40fd-91ff-1f2b88372f95 | myvip | 10.0.1.22 | HTTP     |
> True           | ACTIVE |
>
> +--------------------------------------+-------+-----------+----------+----------------+--------+
>
> $ nova list
>
> +--------------------------------------+------------+--------+------------+-------------+--------------------------------------+
> | ID                                   | Name       | Status | Task State
> | Power State | Networks                             |
>
> +--------------------------------------+------------+--------+------------+-------------+--------------------------------------+
> | 959f0059-f5a8-4085-b093-a1d30d22170c | jumphost   | ACTIVE | -
> | Running     | private_net=10.0.1.10, 131.154.96.20 |
> | 0ecbe8de-8219-4c05-9198-ce0b8cca8bc5 | webserver1 | ACTIVE | -
> | Running     | private_net=10.0.1.11                |
> | ac62c3f3-5b2d-40f3-afb7-c83291541bf5 | webserver2 | ACTIVE | -
> | Running     | private_net=10.0.1.12                |
>
> +--------------------------------------+------------+--------+------------+-------------+--------------------------------------+
>
> # ip netns exec qlbaas-3ed76c5b-681b-46dc-80ac-83c6686adc18 curl
> http://10.0.1.22
> Welcome to webserver1
> # ip netns exec qlbaas-3ed76c5b-681b-46dc-80ac-83c6686adc18 curl
> http://10.0.1.22
> Welcome to webserver2
>
> $ curl -vvv 131.154.96.28
> * About to connect() to 131.154.96.28 port 80 (#0)
> *   Trying 131.154.96.28... Connection timed out
> * couldn't connect to host
> * Closing connection #0
> curl: (7) couldn't connect to host
>
> Am I missing something? Where can I look for errors or missconfigurations?
>
> Thank you very much,
> Cristina
>
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