ClusterAPI: A Guide to Get Started

https://fest19.gdgreading.dev/schedule/2018-10-26?sessionId=81

Transcript

2. Katie Gamanji Cloud Platform Engineer Condé Nast @k_gamanji katie-gamanji
3. ClusterAPI: A Guide to Get Started @k_gamanji katie-gamanji
4. ClusterAPI ClusterAPI Workflow ClusterAPI Components
5. Condé Nast has set the benchmark for print and digital publishing with a heritage of more than 110 years.
7. Markets 11 Websites 62 Unique users 200m Digital readership 1.1bn
10. Unique users Unique users Total digital readership 9m 62m 360m Russia China
12. K8s Bootstrap Tools Kubeadm Kubespray Kops Tectonic
13. ClusterAPI
14. ClusterAPI Provision of declarative APIs for cluster creation, configuration, and management.
15. ClusterAPI SIG-cluster-lifecycle: • Initial release: April 2019 • API: v1alpha2
16. ClusterAPI Workflow
17. 1 / 4
18. Management cluster Target clusters 2 / 4 Controller managers
19. 3 / 4: Controller Managers Infrastructure Providers Bootstrap Providers ClusterAPI CRDs + +
20. Management cluster Target clusters 4 / 4 Controller managers
21. ClusterAPI Components
22. ClusterAPI - CRDs • Cluster - CIDRs for pods and services + DNS suffix • Machine - kubelet and control plane versions • MachineSet • MachineDeployment
23. Cluster Manifest
24. apiVersion: cluster.x-k8s.io/v1alpha2 kind: Cluster metadata: name: capi-quickstart spec: clusterNetwork: pods: cidrBlocks: ["192.168.0.0/16"] infrastructureRef: apiVersion: ${API_VERSION} kind: ${PROVIDER_KIND} name: capi-quickstart Cluster Manifest
25. apiVersion: ${API_VERSION} kind: AWSCluster metadata: name: capi-quickstart spec: region: us-east-1 sshKeyName: default AWS InfrastructureRef
26. apiVersion: ${API_VERSION} kind: GCPCluster metadata: name: capi-quickstart spec: project: capi-project region: us-east-1 network: name: capi-network GCP InfrastructureRef
27. apiVersion: ${API_VERSION} kind: DockerCluster metadata: name: capi-quickstart namespace: default Docker InfrastructureRef
28. Machine Manifest
29. apiVersion: cluster.x-k8s.io/v1alpha2 kind: Machine metadata: [...] spec: version: v1.15.3 bootstrap: configRef: apiVersion: ${API_VERSION} kind: KubeadmConfig name: capi-controlplane-0 infrastructureRef: apiVersion: ${API_VERSION} kind: ${PROVIDER_KIND} name: capi-controlplane-0 Machine Manifest
30. apiVersion: ${API_VERSION} kind: KubeadmConfig metadata: name: capi-controlplane-0 spec: initConfiguration: nodeRegistration: name: ${HOSTNAME} kubeletExtraArgs: cloud-provider: aws clusterConfiguration: apiServer: extraArgs: cloud-provider: aws controllerManager: extraArgs: cloud-provider: aws AWS Boostrap Config
31. apiVersion: ${API_VERSION} kind: AWSMachine metadata: name: capi-controlplane-0 spec: instanceType: t3.large iamInstanceProfile: "capi-iam" sshKeyName: default AWS InfrastructureRef
32. ClusterAPI DEMO https://asciinema.org/a/DaMKYCSaHWu qFq1l4pEAZMKsR
33. Building blocks Cloud agnostic Experimental Takeaways
34. ClusterAPI ClusterAPI Workflow ClusterAPI Components
35. References • ClusterAPI book https://cluster-api.sigs.k8s.io • ClusterAPI — A Guide on How to Get Started https://link.medium.com/8BL8xIpP20
36. https://www.condenast.com/careers @k_gamanji katie-gamanji