README.md

Build OpenStack infrastructure from command-line using openstack client

Pre-requisites

• Linux/Mac/WSL2 terminal
• BASH shell
• installed openstack client (how?)
• MetaCentrum OpenStack cloud group project granted.
• downloaded application credentials from OpenStack Horizon dashboard (how?) and store as text file project_openrc.sh.inc.

How to use the script

# in bash shell
source project_openrc.sh.inc
./cmdline-demo.sh g2-prod-brno basic-infrastructure-1

See linked reference executions.

Infrastructure overview

How does the basic infrastructure looks like?

• single VM (ubuntu-jammy)
  • VM firewall opening port 22
  • VM SSH keypair generated locally and pubkey uploaded to cloud
  • attached additional volume (size 10GB)
• private subnet and network
• router to external internet
• public floating ip address

G1 and G2 cloud differences

Inspect (g1-prod-brno.sh.inc, g2-prod-brno.sh.inc, g2-prod-ostrava.sh.inc) include shell files to see what needs to be changed.