OpenStack from 10,000ft

A lightning talk I whipped up for PyCon IE 2022.

Transcript

1. OpenStack from 10,000ft @stephenfin - PyCon IE 2022
2. Stephen Finucane (@stephenfin) Senior Software Engineer
4. 6 key services… Nova (Compute) Neutron (Networking) Glance (Images) Cinder (Volumes) Keystone (Identity) Placement (Resource tracking)
6. …and loads of others Swift (Object storage) * Designate (DNS) Ironic (Bare metal) Barbican (Key manager) Cyborg (Accelerators) …
7. Couple of common design features Python 3 Traditional relational databases (MySQL) Message queues (RabbitMQ) They wrap other things
8. Couple of common design features Python 3 Traditional relational databases (MySQL) Message queues (RabbitMQ) They wrap other things Bad upgrades, worse documentation :( (though way better than before)
10. How do I get an OpenStack? Public cloud provider Private cloud provider (i.e. work)
11. How do I get an OpenStack? Public cloud provider Private cloud provider (i.e. work) r/homelab / DIY
12. How do I create my own OpenStack? DevStack Kolla OpenStack Ansible TripleO
13. How do I create my own OpenStack? DevStack Kolla OpenStack Ansible TripleO
14. [[local|localrc]] ## Passwords ADMIN_PASSWORD=password DATABASE_PASSWORD=password RABBIT_PASSWORD=password HORIZON_PASSWORD=password SERVICE_PASSWORD=password SERVICE_TOKEN=no-token-password local.conf
15. ❯ ./stack.sh
16. ❯ ./stack.sh # Wait some time... ❯ systemctl status devstack@n-cpu.service ❯ journalctl --unit devstack@n-cpu.service
17. How do I use an OpenStack? Horizon OSC (openstackclient) openstacksdk / Gophercloud Ansible Terraform ⭐ Kubernetes ⭐
18. ❯ pip install openstackclient # ...or... ❯ sudo dnf install python-openstackclient # ...or... ❯ sudo apt install python-openstackclient
19. ❯ openstack server create ... ❯ openstack network create ... ❯ openstack image create ... ❯ openstack volume create ... ❯ openstack project create ...
20. ❯ pip install openstacksdk # ...or... ❯ sudo dnf install python-openstacksdk # ...or... ❯ sudo apt install python-openstacksdk
21. import openstack # Initialize and turn on debug logging openstack.enable_logging(debug=True) # Initialize connection conn = openstack.connect(cloud='devstack') # List the servers for server in conn.compute.servers(): print(server.to_dict()) hello_openstack.py
22. How do I find out more? docs.openstack.org opendev.org/openstack #openstack on IRC (OFTC) openstack-discuss@lists.openstack.org Talk to me! 🙋
23. Thanks!