The document discusses the use of Terraform as a provisioning tool for managing hybrid clouds, specifically with the OpenNebula platform. It highlights Terraform's capabilities in defining resource types such as virtual machines, images, and security groups, and its integration with CI/CD workflows using Jenkins and Ansible. The piece also provides links to relevant resources, GitHub repositories, and tutorials for users to explore further.

1. Hybrid Clouds: Dancing with “Automated” Virtual Machines
Xavier Peralta Ramos
OpenNebulaConf 2018

2. What is CSUC?
Consortium of catalan universities

3. Services portfolio

4. DevOps portfolio

5. Why Terraform?
• A provisioning declarative tool that based on Infrastructure as a
Code paradigm
• Helps to evolve you infrastructure, safely and predictably
• Written in golang
• Terraform is a multipurpose composition tool:
• Composes multiple tiers (SaaS/PaaS/IaaS)

6. Terraform Community
https://github.com/hashicorp/terraform
• Github Stats

7. Terraform is not a cloud agnostic tool
It’s not a magic wand that gives you power
over all clouds and systems.

8. Terraform provider for OpenNebula
https://github.com/runtastic/terraform-provider-opennebula
or
https://github.com/blackberry/terraform-provider-opennebula

9. Example Opennebula Template for Amazon EC2
The attributes are provided in the
OpenNebula Template

10. Terraform provider for OpenNebula: Features
• Leverages OpenNebula's XML/RPC API
• Tested for versions 5.X
This is based on a project started by Runtastic, and has been
enhanced by BlackBerry to allow for definition of these resource
types:
• Virtual Machines
• Images
• VNET Reservations
• Security Groups
As well as data sources for:
• Images
• VNETs
• Security Groups

11. Continuous Integration / Continuous Delivery (CI/CD)
Repository on GitHub or GitLab
DevOps
CommitCommit
Jenkins Build Server
Checkout

12. Terraform workflow

13. Jenkins Pipeline I

14. Jenkins Pipeline: State Terraform Apply
The pipeline use tower-cli to add automatically hosts to the inventory
https://github.com/ansible/tower-cli

15. Jenkins Pipeline: State Run Playbook
Finally launch a Job Template in Ansible AWX or Ansible Tower
https://github.com/ansible/awx

16. AWX Jobs
AWX use the credentials added during the OpenNebula Contextualization

17. Demo Time

18. Be ONE my friend!
+IAC Tutorials at https://confluence.csuc.cat/display/IaaS/Tutorials

19. Be ONE my friend!
+IAC Tutorials at https://opennebula.org/focusing-iac-with-opennebula/

20. Questions
Thanks
Contacts
Xavier.peralta@csuc.cat
Miguel.angel.flores@csuc.cat
Twitter
@cloudadm
@CSUC_info
@miguelangelft85
@xpr85
@jordiguijarro