1.
Choosing A Kubernetes
Integration Technology
That's Right For You
- David Jumani

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

3.
Run-Down
What is CKS & CAPC ?
How They work
Why Choose it ?
Differences
Use case
Demo

4.
Why do they exist ?
● Confusing to set up
● Manual / Automated
● Hard to manage
● Expose
● Easy to get started
● Integrated
● Simple Management
● Central Access
Problem Solution

5.
What is CloudStack Kubernetes Service
[CKS] ?
Managed Kubernetes Offering
Kubernetes as a Service
Seamless, One-click
Lifecycle
Create, Scale, Upgrade, Delete

6.
What is CKS ?

7.
What is CKS ?

8.
How CKS works
Prerequisites :
● Enable CKS
cloud.kubernetes.service.enabled
● Register CKS ISO
○ Kubernetes Binaries
○ Images
○ Config files

9.
How CKS works

10.
How CKS works
Deploy
Cluster
SystemVM
Template
Virtual
Machine
CKS Binary
ISO
cloud-init
userdata
Bootstrapped
Node
Configure
components
Kubernetes
Cluster

11.
Why CKS ?
Seamless
One-click
All In One
● CNI
● Autoscaler
● NW Provider
Quick & Easy
Simple
1
Managed Kubernetes
Offering

12.
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

13.
What is Cluster API Provider [CAPI] ?
How it solves the problem :
Defines Common Operations
Create, Scale, Upgrade, Delete
Default Implementation
Declarative
clusterctl

14.
How does CAPI work ?
CAPI
Provider
Cluster
Definition Kubernetes
Cluster

15.
CAPI
Provider
Cluster
Definition
What is CAPC ?
Cluster API Provider for Apache CloudStack
Kubernetes
Cluster

16.
What is CAPC ?
CAPI
Provider
Cluster
Definition Kubernetes
Cluster
Cluster API Provider for Apache CloudStack

17.
What is CAPC ?

18.
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

19.
How does CAPI work ?
clusterctl generate
clusterctl describe
Management Cluster
Cluster
Config
Workload Clusters
clusterctl init

20.
How does CAPC work ?
Prerequisites :
● Management Cluster
● Credentials
● CloudStack Provider
● Templates with k8s baked in
● Resource Ready (Network, IP, etc)

21.
How does CAPI work ?
Cluster
Definition
CAPI
ACS
Provider
Management
Cluster

22.
How does CAPI work ?
Cluster
Definition
CAPI
ACS
Provider
Management
Cluster
Cluster Resources
● Network
● Public IP
● Load Balancer

23.
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

24.
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

25.
Specialized Features :
● Host Affinity
● Cross Zone
● Additional Disk
● Custom Health Check
● VM Details
Why CAPC ?
Cross Platform
Unified Cluster
Management
Customizable Independent Plugin

26.
Cluster API Provider for
CloudStack [CAPC]
● Learning curve
● Prerequisites
● Customization
● Specialized Features
● Cross Platform
● External integration
Key Differences
CloudStack Kubernetes
Service [CKS]
● Easier to get started
● One-Click
● Ready to use
● Essential Features
● CloudStack Specific
● Native Service

27.
Cluster API Provider for
CloudStack [CAPC]
● Multiple Clouds
● Customize your cluster
● Specialized Requirements
● Independent product
Use Case
CloudStack Kubernetes
Service [CKS]
● Quick
● Ready to use
● Standard use case
● Out of the Box

28.
Questions ?

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