Why and How CloudStack at weSystems - Stephan Bienek - weSystems

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Why? What? How? During the session, Stephan shares what made weSystems choose CloudStack as their main platform, which they base most of their managed services on. In addition, he talks about which services they provide based on CloudStack and how they integrated and use CloudStack today. ----------------------------------------- The CloudStack Collaboration Conference 2023 took place on 23-24th November. The conference, arranged by a group of volunteers from the Apache CloudStack Community, took place in the voco hotel, in Porte de Clichy, Paris. It hosted over 350 attendees, with 47 speakers holding technical talks, user stories, new features and integrations presentations and more.

Technology

Why and How CloudStack at weSystems
When Standard IT is not enough
Stephan Bienek
@StepBee

Founded
2017
Company
Managed Service
Provider (MSP)
Cloud Provider
Locations
Munich (HQ)
Dusseldorf
Berlin
Copenhagen
Sofia & Burgas
Certifications
ISO 27001
RIPE Member
ISP (BNetzA)
BSI IT Grundschutz
PCI DSS
At a glance.

Requirements. outgrew existing platforms
Why we chose Apache CloudStack
Open Source
Multi-Tenancy
Infrastructure-as-a-Service
Multi-Datacenter Support
One platform
Infrastructure-as-a-Service
Managed Hosting Services
Company internal Services
Combining hardware of
different ages
Ease of Operation
Deployment, Daily
operations and Updates
Hybrid Solutions
Combining Cloud and Bare-
Metal resources

Evaluation. of appealing Solutions
Why we chose Apache CloudStack

Evaluation.
Why we chose Apache CloudStack
Open Source https://github.com/apache/cloudstack
One Platform Iaas and Managed Hosting using Domains and Service Offerings
Old and new hardware in different Clusters and Service Offerings
Multi-Tenency Domains, Accounts, Users, Projects
Multi-Datacenter Zones
Ease of Operation Packages for major Linux distributions
2 components only – Management Servers and Agents
Rolling Maintenance, Virtual Router Live Patching
Hybrid Solutions L2 Networks, Specify VLAN, VPC with Private Gateway

Services.
weSystems FlexCompute Cloud
• Infrastructure as a Service from Berlin and Amsterdam
GPU Accelerated Cloud
• GPU support where the extra TFLOPs are required
Voice and Communication Services
• Low latency Managed VOIP service, Contact Center and Collaboration solutions
Managed Computing Services
• Managed Hosting, Managed Monitoring, Managed Kubernetes
Hybrid Solutions
• Combining Cloud and Bare-Metal
What we operate on Apache CloudStack

Use Case – Render Streaming.
Digital exhibition stand
and Training Center
What we operate on Apache CloudStack

What we operate on Apache CloudStack
Use Case – Hybrid Solution.
Combining Cloud and Bare-Metal

Multi Datacenter. Computing
How we operate Apache CloudStack
Berlin and Amsterdam
• European
• GDPR compliant
• Layer 2 interconnect
• VXLAN based Backbone
• Advanced Zones
Grouped by Generation and Capability
• for each Server Generation new Cluster
• VM migration within same Cluster
• each Host has multiple Host Tags
(Generation and Capability)
Offerings across Zones
• Mostly same Service-,
Disk- and Network Offerings
across zones
Service Offerings using Host Tags
• Named according to Generation and
Capability
• automatic Host selection based on tags

Storage. Network.
How we operate Apache CloudStack
Primary Storage
• Ceph Scale-Out Clusters
• NVMe only
• RBD
• Storage tag for perf. class
Isolated Networks
• Default Offering with Source NAT
• Custom Offering with specify VLAN
• Public access via VR
Secondary Storage
• Ceph Scale-Out Clusters
• NFS
Host HA
• Ceph NFS vs Host HA
L2 Networks
• Combining CloudStack with
outside world
• Public access for VNF
• L2 with specify VLAN
• Gateway outside of CloudStack
• Public /29 Subnet

Kubernetes with Ceph CSI. vGPU.
How we operate Apache CloudStack
Isolated Network
• Custom Offering with specify VLAN
• Reservation for external Gateway
• Routed access to Ceph
XML Modification
• Groovy Script
• vfio-pci uuid injection
DaemonSet
• Privileged Pod
• Host Networking
• Host Routes to Ceph via ext. GW
Ø Direct Ceph access without VR
while keeping K8s CS integration
Service Offering
• vGPU Host Tag

Inspiration by Apache CloudStack
Inspiration by Apache CloudStack

www.wesystems.de
Stephan Bienek
Head of Hosting
s.bienek@wesystems.ag
+49 89 24410-861
+49 160 2000 581
@StepBee

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