3. Add the following configuration to balance Keystone API requests: frontend keystone_front bind *:5000 default_backend keystone_backend backend keystone_backend balance roundrobin server controller1 192.168.1.10:5000 check server controller2 192.168.1.11:5000 check 4. Restart HAProxy to apply the configuration: systemctl restart haproxy systemctl enable haproxy 5. Verify that HAProxy is balancing traffic correctly: curl -I http://<haproxy -ip>:5000 You need to shut down the entire OpenStack Overcloud gracefully for scheduled maintenance. How would you ensure that all services are stopped in the correct sequence to avoid corruption or failures?
systemctl stop mariadb systemctl stop rabbitmq -server 5. Power off the compute and controller nodes safely: shutdown -h now After a system -wide outage, you need to start the OpenStack Overcloud and ensure all services come up in the correct order. How would you safely bring up the Overcloud environment?
You need to reboot an OpenStack Compute node without affecting active workloads. How can you reboot a compute node safely while ensuring that instances remain running?
fsck -y /dev/sda1 3. Ensure that database services start first: systemctl start mariadb systemctl start rabbitmq -server systemctl start etcd 4. Start OpenStack services sequentially: systemctl start openstack -keystone systemctl start openstack -nova -api systemctl start neutron -server 5. Verify that all services are operational: openstack service list systemctl list -units --type=service --state=running | grep openstack How can you verify that all OpenStack services are correctly running after an Overcloud reboot?
openstack image list After a power outage, your OpenStack Overcloud fails to start, and some services remain in a failed state. How would you systematically troubleshoot and bring the Overcloud back online?
➢ TOTAL QUESTIONS: 290 You are responsible for managing the OpenStack control plane and ensuring all core services are running without failure. A user reports that OpenStack Compute (Nova) is not responding. Your task is to check the status of all OpenStack services on the control plane, restart any failed services, and verify that they are running correctly. How would you achieve this?
