OpenStack is a collection of open-source tools.
Different OpenStack cloud deployment methods are available.
Kolla Ansible is one of the recommended deployment method.
Deployment Overview: –
3 Node Ceph Cluster Deployed. Please check the following link – How to deploy the ceph storage cluster – https://kdinesh.in/deploying-ceph-storage-cluster-using-cephadm/
Machine | IP | Hostname | Comments |
Deployment | 172.90.0.33 | OpenStackcloud | For Deploying and Managing the Cloud |
Controller0 | 172.90.0.34 | Controller0 | VIP – 172.90.0.201, VIP DNS – OpenStack |
Controller1 | 172.90.0.35 | Controller1 | |
Controller2 | 172.90.0.36 | Controller2 | |
Compute0 | 172.90.0.37 | Compute0 | |
Compute1 | 172.90.0.38 | Compute1 |
Add a second nic for the controller and compute nodes (Don’t configure any IP for Second NIC). For the Production environment use network bonding.
Following Openstack services will be deployed
Keystone – Authentication service, Glance – Image Service
Nova – Compute Service, Neutron – Networking Service
Horizon – Dashboard Service, SKYLINE – New Dashboard
Heat – Orchestration Service, Magnum – Container Infra Service
Masakari – High Availability service, Trove – Database service
Sahara – Bigdata service – Hadoop …etc., Freezer – Backup and Disaster recovery service
Deployment Steps: –
OpenStack Version – Antelope
Create 6 VMs – One deployment,Three controllers, Two Computes.
Configure DNS records for the Controllers. Computes and VIP IP’s.
Check DNS Resolution
Download or copy the sshandntp script file and run it on the Deployment machine. You can download the script file using the following link – https://github.com/Dineshk1205/openstackmultinode/blob/main/sshandntp.sh
Note:- Update NTP and Hostname according to your Infra
Download or copy the openstackmultinodeprep script file and run it on the Deployment machine. You can download the script file using the following link – https://github.com/Dineshk1205/openstackmultinode/blob/main/openstackmultinodeprep.sh
In the Script update IP’S, NIC, Hostnames and other information according to your infra.
Download or Copy the cephconfigopenstack script file and run it on the Ceph0 machine. You can download the script file using the following link – https://github.com/Dineshk1205/openstackmultinode/blob/main/Cephconfigopenstack.sh
Script Configured– Pools, Passwordless ssh to the deployment node, and Copies cep. conf and ceph keyrings to the deployment machine.
You can check Ceph Dashboard – In the pools – backups, images, VMS, and volumes pools.
Download or copy the cephconfigopenstack script file and run it on the Deployment machine. You can download the script file using the following link – https://github.com/Dineshk1205/openstackmultinode/blob/main/OpenstackDeployment.sh
It will take 15 to 20 min based on your environment.
Once Deployment is completed. In /etc/kolla Directory check admin-openrc.sh file and view file(cat admin-openrc.sh) Copy the admin password.
Log in and check the Service status on Dashboard.
Update network CIDR details and other details on /usr/local/share/kola-ansible/init-runonce file and run .
Instance High Availability Testing: –
In Dashboard > Instance-ha. Create a segment.
Enter the Segment name, Select Recovery method, and click on create.
Add Hosts to Segment.
Add Compute 0 and compute1 as a host.
Create an instance.
ADD metadata – HA_Enabled True. Otherwise instance HA will not work.
Instance created and running Instance IP – 172.90.0.43. also, check the ceph dashboard.
Instance Running on Compute1
For testing the HA service , shutdown compute1 node because currently instance running on compute1 .
The instance evacuated to compute0.
The instance evacuation process may take 5 to 10 min.
You can see the instance overview – instance running on compute0.
