[tripleo][compute][overcloud]Add additional compute nodes on existing overcloud
dangerzonen at gmail.com
Thu Feb 18 03:27:01 UTC 2021
Hi Martin and Team,
Following to my questions of adding new compute onto existing overcloud, If
the new compute server is not the same type (existing running on blade
server) where it may be rack mount type, what are the changes I should make
to all yaml files related? I foreseen tricky especially the nic layout is
different between blade and rack mount type.
Pls advise anyone facing the same scenario.... (I just been informed the
new compute server is rack mount type)...
Pls advise...Thank you.
On Thu, Feb 18, 2021 at 12:14 AM dangerzone ar <dangerzonen at gmail.com>
> Hi Martin,
> Noted and thanks for your response and input.
> If I can remember, ComputeCount can be defined in a node-info file...
> Thus, If I edit ComputeCount from existing 3 to 6 in node-info file...I
> can run the same overcloud deploy command as follows
> openstack overcloud deploy --templates \
> -r ~/templates/roles_data.yaml \
> -n ~/templates/network_data.yaml \
> -e ~/templates/network.yaml \
> -e ~/templates/scheduler_hints_env.yaml \
> -e ~/templates/*node-info.yaml*
> I hope this is good to go....
> This scaling new compute node should not affect existing openstack nodes
> and instances running right...as I understand...redeployment overcloud..
> just updates and registers new 3 compute nodes onto the overcloud...... I'm
> a bit nervous...so I need to plan well and identify any risks...
> Thanks Martin and team...
> On Wed, Feb 17, 2021 at 7:18 PM Martin Schuppert <mschuppert at redhat.com>
>> On Wed, Feb 17, 2021 at 12:06 PM dangerzone ar <dangerzonen at gmail.com> wrote:
>> Hi all...I'm planning to add another 3 compute servers to existing
>>> overcloud (consists of existing 2 compute nodes, 3 controllers and 3
>>> storage). I'm running on openstack ussuri using tripleo and centos7.
>>> Below is the command and parameters used during initial deployment
>>> openstack overcloud deploy --templates \
>>> -r ~/templates/roles_data.yaml \
>>> -n ~/templates/network_data.yaml \
>>> -e ~/templates/network.yaml \
>>> -e ~/templates/scheduler_hints_env.yaml \
>>> -e ~/templates/node-info.yaml
>>> So now this is my plan to add additional compute nodes
>>> *1. Create new json file containing details of new compute nodes i.e.
>>> *openstack overcloud node import newnodes.json*
>>> *2. Run introspection*
>>> *openstack overcloud node introspect --all-manageable*
>>> *3. Tag each new node for its desired role*
>>> *openstack baremetal node set --property
>>> capabilities='profile:compute,boot_option:local' [NODE UUID]*
>>> *4. Run openstack overcloud deploy*
>>> *openstack overcloud deploy --compute-scale 3*
>> The scale parameters, like --compute-scale, are deprecated. You should
>> just change the <Role>Count (e.g. ComputeCount)
>> to match your new scale. At the moment you have 3, change it to 6.
>>> *Step No 4, should I run overcloud deploy with all the environment
>>> template/parameters same as during initial deployment as per example above?*
>>> *Really appreciate your advice of these steps especially no 4.*
>> yes, run the same deploy command with the modified <Role>Count.
>>> Please advise further if my plan and steps above are good to go.
>>> Thank you for your help and kind advice. May God bless you.
>>> Thank you.
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