Deploying and running services via OpenStack and Kubernetes at Chalmers e-Commons: Inside Kubernetes (7/7)

by Dejan Vitlacil (Chalmers University of Technology)

Wednesday 22 Oct 2025, 12:00 → 14:00 Europe/Stockholm

S0 : Overview  (1,5h) [16.05.2025 – Dejan]

• Components of our infrastructure

• Anatomy of:

  • a compute cluster (HPC)

  • (an AI cluster, what differs from HPC. Maybe skip?)

  • an OpenStack installation

  • Ceph storage cluster

  • A kubernetes cluster

• Ways of running OpenStack and Kubernetes

• Overview of the following seminars

 

S1 : HW and Network (2h)[21.05.2025 - Dejan, Micke, Yunqi]

• Machines and racking

  • type of machines and specs, BIOS settings, power considerations, BMC (cli + web)

• Network overview and cabling

  • Mgmt Network separation and other VLANs

  • Network topology + Gateways, Patch panels, Core and Access switches, login to a switch, (Netbox)

  • Access port, trunk port, tagged vs untagged, CLAG/MLAG,

  • Ansible vs Cumulus vs Huawei

  •  

• Cobbler

  • kicking machine and templates structure

  • passwords and password manager

  • janne and ssh key access from janne (VPN?)

  • DNS (local and Chalmers)

  • IPv4 vs IPv6

• Ansible

  • Network configuration

  • Icinga and Grafana

  • Firewall and Fail2Ban

• Demo deploy – 3+4 nodes for OpenStack
  Openstack prerequisits (VLANs and Storage) – very brief intro to transition into storage module.

 

S2: Ceph and Storage Cluster (1h) [28.05.2025 - Thomas]

• Anatomy of a Ceph Storage Cluster

  • HW

  • Servers and services

  • Pools

• What is Rados?

• Storage types

  • Object

  • Block

  • File

• Tools

• Mimer (WEKA + Ceph)

• HW Old Devel-Ceph

 

S3: Openstack Deployment  (Kolla-Ansible) (2h) [September - Dejan, Franz]

• Overview

• Components

• Kolla-Ansible deployment approach

• Network requirements

• GitLab + configuration of seed node (cirrus-deploy)

• Storage configuration and requirements

• HandsOn – poke containers

• add nodes Services

 

S4: Inside Openstack (2h) [September - Dejan, Franz]

• Users and Projects

• SUPR

• Project Administration

• Security

• Project Network, Routers and VMs + firewall + FloatingIPs

• Volumes, Shares and Load Balancer – Kubernetes Cluster in Openstack

 

S5: K8s Deployment (2h) [October - Dejan, Franz]

S6: Inside Kubernetes (2h) [October - Dejan, Franz]