The document discusses Cluster API, which is a Kubernetes project for declaratively managing Kubernetes clusters over multiple cloud providers. It describes the main Cluster API concepts including clusters, machines, machine sets, machine deployments, and machine classes. It also provides an overview of how Cluster API is used to bootstrap both a management cluster and workload clusters. Finally, it outlines future plans for Cluster API including additional controllers and image building capabilities.

1. Deploying & Managing
Kubernetes with
Kubernetes
@johnharris85

2. John Harris
Senior Cloud Native Architect
@
2 @johnharris85
We’re
hiring!

3. Cluster API
3 @johnharris85

4. Kubernetes Model
4 @johnharris85
declarative vs imperative

5. Kubernetes Model
5 @johnharris85

6. Controller manager

7. Custom Resources
7 @johnharris85
apiVersion: "cluster.k8s.io/v1alpha1"
kind: Machine
metadata:
name: capa-test-controlplane-0
labels:
cluster.k8s.io/cluster-name: capa-test
set: controlplane
. . .

8. Custom Resources
8 @johnharris85

9. Cluster API
9 @johnharris85
cluster machine machine
set
machine
deployment
machine
class

10. Cluster API
10 @johnharris85
cluster machine machine
set
machine
deployment
machine
class
pod replica set deployment storage
class

11. Cluster API
11 @johnharris85
cluster
machine
machine set
machine deployment
machine class
- Cluster wide config
- Kubeadm
- ProviderSpec
- Generic networking
concepts

12. Cluster API
12 @johnharris85
cluster
machine
machine set
machine deployment
machine class
- Configuration for a
specific machine
- Spec has the desired
kubelet version
- Providers can override

13. Cluster API
13 @johnharris85
cluster
machine
machine set
machine deployment
machine class
- Configuration for a set of
machines
- Desired number of
replicas
- Template for creating
machines

14. Cluster API
14 @johnharris85
cluster
machine
machine set
machine deployment
machine class
- Declarative updates for
Machines via
MachineSets
- Update strategy how
changes are applied

15. Cluster API
15 @johnharris85
cluster
machine
machine set
machine deployment
machine class
- Platform-specific
configuration for
Machines
- The embedded type is
expected to be a
versioned Kubernetes
type

16. DEMO
16 @johnharris85

17. Cluster API
17 @johnharris85
Management Cluster
Cluster API Controller-Manager Provider Controller-Manager
machine set
machine deployment
Cluster Controller Machine Controller
Cluster Actuator
- Reconcile
- Delete
Machine Actuator
- Create
- Update
- Delete
- Exists

18. Bootstrapping
18 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl

19. Bootstrapping
19 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl
CAP*
components

20. Bootstrapping
20 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl
CAP*
components cluster machine

21. Bootstrapping
21 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl
CAP*
components cluster machine
Target / Workload Cluster
Control Plane

22. Bootstrapping
22 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl
CAP*
components cluster machine
Target / Workload Cluster
Control Plane
CAP*
components

23. Bootstrapping
23 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl
cluster machine
Target / Workload Cluster
Control Plane
CAP*
components

24. Bootstrapping
24 @johnharris85
Bootstrap Cluster
Control Plane
clusterctl
cluster machine
Target / Workload Cluster
Control Plane
cluster machine
CAP*
components

25. Bootstrapping
25 @johnharris85
clusterctl
Target / Workload Cluster
Control Plane
cluster machine
CAP*
components

26. 26 @johnharris85
The Future

27. 27 @johnharris85
The Future
Controllers:
- Infrastructure
- Core
- Bootstrap

28. 28 @johnharris85
The Future
Controllers:
- Infrastructure
- Core
- Bootstrap
image building

29. 29
- https://github.com/kubernetes-sigs/cluster-api
- Join kubernetes-sig-cluster-lifecycle
- Weekly meeting on Wed @ 10:00 PT
- Meeting Notes
- Slack: #cluster-api
- Provider Implementations (AWS, vSphere, Azure,
etc…)
@johnharris85
Getting Involved

30. Credits
Special thanks to all the people who made and released
these awesome resources for free:
✘ Presentation template by SlidesCarnival
✘ K8s Icons originally by OctoTechnology
30 @johnharris85

31. thanks!
Questions?
@johnharris85
31