[tripleo][compute][overcloud]Add additional compute nodes on existing overcloud
dangerzonen at gmail.com
Wed Feb 17 16:14:48 UTC 2021
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 \
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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