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Disable the compute node so that it doesn't accept new VMs:
Code Block language bash openstack compute service set --disable cld-np-19.cloud.pd.infn.it nova-compute
Because of a bug (https://bugs.launchpad.net/nova/+bug/1978489) we need to have nova version 25.2.0 (nova version 25.2.1 is affected by the problem). You may therefore need to downgrade nova and then restart the service:
| Code Block |
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yum downgrade *nova*
systemctl restart openstack-nova-compute.service |
Start and enablepuppet:
Code Block language bash systemctl start puppet; systemctl enable puppet
Enable the checks in Nagios for this host
Wait till all checks are ok (in particular the VM network and volume one: remember to enable the node just for the time to force the run from Nagios; othwerwise the check will fail.)
- Add this node in the following scripts on cld-ctrl-01: /usr/local/bin/display_usage_of_hypervisors.sh, /usr/local/bin/host_aggregate.sh, /usr/local/bin/new_project.sh, /usr/local/bin/free_resources_compute_nodes.sh
- Add this node in the /etc/cron.daily/vm-log.sh script on cld-log
- Create the directory /var/disk-iscsi/qemu/cld-np-19 in cld-log
- Verify that a ssh from root@cld-log to root@cld-np-19 works without requiring password
Stop puppet on the 2 controller nodes:
Code Block language bash systemctl stop puppet
Add the new compute node in cld-config:/var/puppet/puppet_yoga/controller_yoga/templates/aai_settings.py.erb
Run puppet on the first controller node (this will trigger a restart of httpd):
Code Block language bash puppet agent -t
Run puppet on the second controller node (this will trigger a restart of httpd):
Code Block language bash puppet agent -t
Start puppet on the two controller nodes:
Code Block language bash systemctl start puppet
Enable the host:
Code Block language bash openstack compute service set --enable cld-np-19.cloud.pd.infn.it nova-compute
- Add the host to the 'admin' aggregate
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