Open Stack

Hello,

adding
sudo sysctl net.ipv6.conf.all.disable_ipv6=1

to the compute node solved the problem

thanks,
Pavlos.

On Mon, Nov 23, 2020 at 3:52 PM Pavlos Basaras <pbasaras at gmail.com> wrote:

> Hello,
>
> I double checked the configuration with:
> https://docs.openstack.org/neutron/ussuri/install/compute-install-ubuntu.html
> ,
> it looks ok, i think.
>
> attached the log from the compute node. Do you need any other log files ?
>
> As i am a newbie i don't really know how to "open an LP bug "
>
>
> all the best
> Pavlos.
>
> On Mon, Nov 23, 2020 at 1:52 PM Slawek Kaplonski <skaplons at redhat.com>
> wrote:
>
>> Hi,
>>
>> On Mon, Nov 23, 2020 at 12:11:55PM +0200, Pavlos Basaras wrote:
>> > Hello,
>> >
>> > i am new to Openstack.
>> >
>> > I have followed the instructions from
>> > https://docs.openstack.org/install-guide/ to install openstack Ussuri
>> where
>> > i use a controller node and a compute node (i can ping each  other and
>> > access the internet from both nodes through the mgmt iface).
>> >
>> > I use ubuntu 18.04 for all components.
>> >
>> > I have configured the network option 2, seems to work fine:
>> >
>> > openstack network agent list
>> >
>> +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
>> > | ID                                   | Agent Type         | Host
>>  |
>> > Availability Zone | Alive | State | Binary                    |
>> >
>> +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
>> > | 2d8c3a89-32c4-4b97-aa4f-ca19db53b24f | L3 agent           |
>> controller |
>> > nova              | :-)   | UP    | neutron-l3-agent          |
>> > | 413cd13d-88d7-45ce-8b2e-26fdb265740f | Metadata agent     |
>> controller |
>> > None              | :-)   | UP    | neutron-metadata-agent    |
>> > | 42f57bee-63b3-44e6-9392-939ece98719d | Linux bridge agent | compute
>>   |
>> > None              | :-)   | UP    | neutron-linuxbridge-agent |
>> > | 4a787a09-04aa-4350-bd32-0c0177ed06a1 | DHCP agent         |
>> controller |
>> > nova              | :-)   | UP    | neutron-dhcp-agent        |
>> > | fdafc337-7581-4ecd-b175-810713a25e1f | Linux bridge agent |
>> controller |
>> > None              | :-)   | UP    | neutron-linuxbridge-agent |
>> >
>> +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
>> >
>> > If i try to bring up instances connected by an internal network, they
>> are
>> > successfully deployed.
>> >
>> > When i use the provider network to bring up an instance with the
>> command:
>> > openstack server create --flavor m1.tiny --image cirros034 --nic
>> > net-id=4463e4a7-3b06-46d9-b24f-3e2e7867ee96
>> > --security-group=5cf380e5-efb3-48b3-b8e9-095b1ebd817d provider-instance
>> >
>> > the instance fails to be instantiated because the network cannot be
>> > deployed.
>> >
>> > I noticed two points from the neutron-linuxbridge-agent.log file at the
>> > compute node (the logs at the controller seem fine):
>> >
>> > 1) ERROR neutron.plugins.ml2.drivers.agent._common_agent
>> > pyroute2.netlink.exceptions.NetlinkError: (13, 'Permission denied')
>>
>> This sounds like maybe some issue with usage of sudo by user which runs
>> neutron-linuxbridge-agent. Is it configured properly?
>>
>> > 2) INFO neutron.plugins.ml2.drivers.agent._common_agent
>> > [req-816902d4-6581-49c1-939a-6ea69b437c99 - - - - -] Linux bridge agent
>> > Agent out of sync with plugin!  -- not sure if this one is a problem.
>>
>> This is probably just a result of above error. But to be sure I would
>> need to
>> see whole log.
>>
>> If You will still have such issue, please open LP bug and attach Your logs
>> there. In such way it should be maybe easier to investigate what is going
>> on
>> there.
>>
>> In Ussuri we are running CI job
>> neutron-tempest-plugin-scenario-linuxbridge
>> which deploys neutron-linuxbridge-agent and all works fine there. You can
>> check
>> that e.g. on
>>
>> https://zuul.opendev.org/t/openstack/build/441182cb87fd47daa34d5018fc2eb9ab
>>
>> >
>> > One part that i am not sure is the following configuration since i am on
>> > ubuntu 18 and not ubuntu 16:
>> >
>> > # The provider network interface
>> > auto INTERFACE_NAME
>> > iface INTERFACE_NAME inet manual
>> > up ip link set dev $IFACE up
>> > down ip link set dev $IFACE down
>> >
>> > I did not include this part in my file since its ubuntu 18, and netplan
>> > does not have an equivalent (i think) option. I have this netplan config
>> >
>> >    enp0s8: --> mgmt
>> >       dhcp4: false
>> >       addresses: [10.0.0.31/24]
>> >       gateway4: 10.0.0.1
>> >       nameservers:
>> >           addresses: [8.8.8.8, 8.8.4.4]
>> >     enp0s9: --> provider
>> >       dhcp4: false
>> >
>> >
>> >
>> > any advice?
>> >
>> > all the best,
>> > Pavlos Basaras
>>
>> --
>> Slawek Kaplonski
>> Principal Software Engineer
>> Red Hat
>>
>>
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