1.
Our Journey Developing
Kubernetes CAPI
Provider For Apache
CloudStack
- David Jumani

2.
First Born
Rugby
CloudStack Committer
Kubernetes Member
Developer @ ShapeBlue
About Me
Photo credits : @jissydavis

3.
Run-Down
Why we did it ?
What is CAPI ?
How does it work ?
How we did it !
Demo

4.
Why we did it ?
Collaboration

5.
What is Cluster API Provider [CAPI] ?
Plethora of
Providers
Tailored Services
Differing
Implementations
Standardize
Default
Implementations
Unified Cluster
Management
Individual Cluster
Management
Custom Distros
Commonality
Problem
Solution

6.
What is Cluster API Provider [CAPI] ?
How it solves the problem :
Defines Common Operations
Create, Scale, Upgrade, Delete
Default Implementation
Declarative
clusterctl

7.
How does CAPI work ?
CAPI
Provider
Cluster
Definition Kubernetes
Cluster

8.
CAPI
Provider
Cluster
Definition
What is CAPC ?
Cluster API Provider for Apache CloudStack
Kubernetes
Cluster

9.
What is CAPC ?
CAPI
Provider
Cluster
Definition Kubernetes
Cluster
Cluster API Provider for Apache CloudStack

10.
What is CAPC ?

11.
Concepts:
How does CAPI work ?
Management Cluster
● Manages Lifecycle of
Workload Clusters
● CAPI
● Providers
● Resources, State
● Runs Anywhere
Workload Cluster
● Managed by MC
● Runs on your infra
● End user
Infrastructure
Provider
● Interface to the
underlying infra
● Pod on MC
Custom Resource
Definitions
● Extension of K8s API
● Define CAPI & infra
specific components
● Cluster, Machine
Eg: CloudStack Cluster,
AWS Machine

12.
How does CAPI work ?
clusterctl generate
clusterctl describe
Management Cluster
Cluster
Config
Workload Clusters
clusterctl init

13.
How does CAPI work ?
Cluster
Definition
CAPI
ACS
Provider
Management
Cluster

14.
How does CAPI work ?
Cluster
Definition
CAPI
ACS
Provider
Management
Cluster
Cluster Resources
● Network
● Public IP
● Load Balancer

15.
How does CAPI work ?
Cluster
Definition
CAPI
ACS
Provider
Management
Cluster
Cluster Resources
● Network
● Public IP
● Load Balancer
Cluster Nodes
● Deploy VMs
● Bootstrap : cloud-init

16.
How does CAPI work ?
Cluster
Definition
CAPI
ACS
Provider
Management
Cluster
Cluster Resources
● Network
● Public IP
● Load Balancer
Cluster Nodes
● Deploy VMs
● Bootstrap : cloud-init
Cleanup Resources

17.
CAPC Features
Cross Platform
Unified Cluster
Management
Customizable Independent Plugin
Specialized Features :
● Host Affinity
● Cross Zone
● Additional Disk
● Custom Health Check
● VM Details

18.
Why we did it ?
Collaboration

19.
How we did it ?
The Code :
20XX
Specialized Features
Multi Zone - Shared
Network
20XX
Advanced Features
Affinity - VM Details -
Custom Health Checks
20XX
Core Functionality
Create - Delete
20XX
Basic Functionality
Scale - Upgrade
20XX
Integrations
EKS - A

20.
How we did it ?
The Fun Part !
Research Meetings Support Propose
Bonus :
Great People !

21.
How we did it ?
The Fun Part !
Cluster
API
Image Builder
Contributions
Sponsor
Membership

22.
How we did it ?
Repo Donation
Container Registry
Github Integrations
Documentation
Home Stretch :

23.
How we did it ?
v0.4.8 Release
~80% Test Coverage
EKS-A Integrated
How its going :
Image Builder
- EL 7 / 8
- Ubuntu 20 / 22
- Suse

24.
Learnings
Be Curious
But Satisfaction brought it back
Ask
Everyone loves to be a hero
Do your research
Avoid Surprises
Community > Code
Win - win - Win

25.
More Fun Stuff !

26.
The Future
And Many More …
Watch this space for more !
Additional OS Support
CloudStack aware of CAPC
Clusters
Unmanaged Clusters
CloudStack aware of CAPC Clusters

27.
We Want You !
https://github.com/kubernetes-sigs/cluster-api-provider-cloudstack
https://kubernetes.slack.com/messages/cluster-api-cloudstack
https://cluster-api-cloudstack.sigs.k8s.io/
https://www.youtube.com/watch?v=Du1pGriJzo8

28.
Demo Time !
Talk Is Cheap
Show Me The Code !

29.
Thank You !
davidjumani
david.njumani@gmail.com