[openstack-ansible] Re: How to configure interfaces in CentOS 8.3 for OSA installation?

Amey Abhyankar sco1984 at gmail.com
Tue Feb 23 04:06:18 UTC 2021


Thanks all.
I took quick help from #openstack-ansible IRC channel.

It seems like there is an issue for Indian users for bootstrap.
The connection fails at 1 point.
I am connected over a 50+ mbps very stable connection.
I also tried over a 100+ mbps corporate 1:1 fibre optic line. Same issue.

I just wonder if we have any audience doing OSA bootstrapping over any
ISP's in India in the last couple of weeks..

Regards,
Amey.

On Wed, 17 Feb 2021 at 17:47, Dmitriy Rabotyagov <noonedeadpunk at ya.ru> wrote:
>
> Regarding OSA, RAM requirement is more heavy I'd say in case you want to do AIO deployment with LXC containers. I'd suggest using ~10Gb of RAM because 8Gb is bare minimum.
> But in case of metal SCENARIO for AIO, 8Gb should be pretty much ok, and I guess 6 Gb is really bare minimum.
>
> Reagarding CPUs I was runing AIO with 4 CPUs and it was also pretty fine.
>
> 17.02.2021, 13:13, "Sean Mooney" <smooney at redhat.com>:
>
> On Wed, 2021-02-17 at 10:12 +0530, Amey Abhyankar wrote:
>
>  Thanks.
>  I have joined the channel.
>
>  AIO doc says minimum 8 vcpu's are required.
>  Is that a mandatory requirement?
>  My laptop has less vcpu's.
>
> if its just a test deployment you can run with less
> we normally recommend 8G for ram and 8vcpus for an all in one deployment of openstack but it will work with 4
> you just wont be abel to run many vms. on the ram side i have deployed all in one node in 6G of ram but again that
> teands not to leave much room for vms.
>
> i havent realy used OSA but the requirements should be more or less the same.
>
>
>
>  Regards,
>  Amey.
>
>  On Tue, 16 Feb 2021 at 22:31, Satish Patel <satish.txt at gmail.com> wrote:
>  >
>  > In my setup I have deployed everything on real hardware with VLANs etc
>  > to mimic production style. Are you trying to deploy openstack-ansible
>  > (AIO)? https://docs.openstack.org/openstack-ansible/latest/user/aio/quickstart.html
>  >
>  > Let me assume you are trying to deploy an openstack-ansible AIO model
>  > on a virtual box. In that case you don't need any special networking,
>  > all you need is a single virtualBox nic in Bridge mode and follow AIO
>  > instructions. Why don't you join openstack-ansible IRC, it's hard to
>  > answer interactive questions here.
>  >
>  > On Tue, Feb 16, 2021 at 11:27 AM Amey Abhyankar <sco1984 at gmail.com> wrote:
>  > >
>  > > Hello Satish,
>  > >
>  > > I am unable to ssh/ping the CentOS 8.2 machine after following the
>  > > steps mentioned in your document.
>  > > I am trying this POC using Oracle Virtualbox.
>  > > The vm got 192.168.0.x IP from DHCP in my wifi router.
>  > >
>  > > Till bootstrap, the SSH session was alive.
>  > > But after a while I lost access to the vm.
>  > > Now If I do ip a, I don't see the 192.168.0.x IP to any interface.
>  > >
>  > > What can be the issue?
>  > >
>  > > Regards,
>  > > Amey.
>  > >
>  > > On Wed, 10 Feb 2021 at 20:12, Satish Patel <satish.txt at gmail.com> wrote:
>  > > >
>  > > > Hi Amey,
>  > > >
>  > > > I am running my cloud using openstack-ansible on centos 7.5 (on
>  > > > Production) and 8.x (on Lab because centos 8 soon end of life, my
>  > > > future plan is to migrate everything to ubuntu ).
>  > > >
>  > > > Answer to your question is you have two way to configure networking using OSA
>  > > >
>  > > > 1. Use systemd-networkd here is the example -
>  > > > http://paste.openstack.org/show/802517/
>  > > > 2. Use package network-scripts (This is legacy way to configure
>  > > > network on centOS /etc/sysconfig/network-scripts/* style) - You can
>  > > > see example on my blog how to deploy OSA on centos -
>  > > > https://satishdotpatel.github.io//build-openstack-cloud-using-openstack-ansible/
>  > > >
>  > > >
>  > > > On Wed, Feb 10, 2021 at 9:14 AM Amey Abhyankar <sco1984 at gmail.com> wrote:
>  > > > >
>  > > > > Hello Jonathan,
>  > > > >
>  > > > > On Wed, 10 Feb 2021 at 18:35, Jonathan Rosser
>  > > > > <jonathan.rosser at rd.bbc.co.uk> wrote:
>  > > > > >
>  > > > > > Hi Amey,
>  > > > > >
>  > > > > > The documentation that you linked to is specifically for the ansible
>  > > > > > deployment host, which can be separate from the OpenStack target hosts
>  > > > > > if you wish. The only requirement is that it has ssh access to the
>  > > > > > target hosts, by default this would be via the network attached to
>  > > > > > br-mgmt on those hosts.
>  > > > > >
>  > > > > > In terms of the target hosts networking, you should refer to
>  > > > > > https://docs.openstack.org/project-deploy-guide/openstack-ansible/latest/targethosts.html#configuring-the-network.
>  > > > > Yes I checked this reference.
>  > > > > >
>  > > > > > OpenStack-Ansible does not prescribe any particular method for
>  > > > > > setting up the host networking as this tends to be specific
>  > > > > > to the individual environment or deployer preferences.
>  > > > > I am looking for an example where to put the interface configurations
>  > > > > in CentOS 8.
>  > > > > But, I am unable to find any references specifically for CentOS/RHEL.
>  > > > > Hence I post the question here to get help from some1 who is already
>  > > > > running OpenStack on CentOS 8.
>  > > > >
>  > > > > Regards,
>  > > > > Amey.
>  > > > > >
>  > > > > > You should pick most appropriate network config tool for your
>  > > > > > OS/environment and create the bridges and networks listed in the
>  > > > > > table on the target hosts documentation.
>  > > > > >
>  > > > > > I would always recommend starting with an All-In-One deployment
>  > > > > > https://docs.openstack.org/openstack-ansible/latest/user/aio/quickstart.html.
>  > > > > > This will generate a complete test environment
>  > > > > > with all the host networking set up correctly and will serve as
>  > > > > > a reference example for a production deployment.
>  > > > > >
>  > > > > > Do join the #openstack-ansible IRC channel if you would like
>  > > > > > to discuss any of the options further.
>  > > > > >
>  > > > > > Regards,
>  > > > > > Jonathan.
>  > > > > >
>  > > > > > On 10/02/2021 10:09, Amey Abhyankar wrote:
>  > > > > > > Hello,
>  > > > > > >
>  > > > > > > I am trying to install OpenStack by referring following guides =
>  > > > > > >
>  > > > > > > 1) https://docs.openstack.org/project-deploy-guide/openstack-ansible/latest/deploymenthost.html
>  > > > > > > 2) https://docs.openstack.org/openstack-ansible/victoria/user/test/example.html
>  > > > > > >
>  > > > > > > In link number 2, there is a step to configure interfaces.
>  > > > > > > In CentOS 8 we don't have a /etc/network/interfaces file.
>  > > > > > > Which interface file should I configure?
>  > > > > > > Or do I need to create all virtual int's manually using nmcli?
>  > > > > > >
>  > > > > > > Pls suggest thanks.
>  > > > > > >
>  > > > > > > Regards,
>  > > > > > > Amey.
>  > > > > > >
>  > > > > > >
>  > > > > >
>  > > > >
>
>
>
>
>
>
>
>
> --
> Kind Regards,
> Dmitriy Rabotyagov
>



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