# PKS Training Day

## Time
15 minutes

## Topics

1. Why Kubernetes ?
- Open source
- Freedom vs Opinion
- CNCF vs CF
- Better container orchestration tech
- Evolution of APIs
- Innovation

2. Architecture of Kubernetes


2. Kubernetes Extension Resources
- Reconciliation loops
- Operators

3. Kubernetes - Core Concepts
1. Docker
1. Pods - labels, namespaces
2. Replication Controllers - Replica Sets
3. Services - Service Types
* NodePort
* ClusterIP
* Headless
* LoadBalancer
* Ingress
5. Volumes - attaching disk storage to containers
- emptyDir
- hostPath
- gitRepo
- nfs
- gcePersistentDisk
- cinder, cephfs, iscsi, flocker, glusterfs, quobyte, rbd, flexVolume
- vsphere- Volume, photonPersistentDisk, scaleIO
- configMap, secret, downwardAPI
- persistentVolumeClaim
7. ConfigMaps and Secrets
8. Downward API
9. Stateful Sets as compared to ReplicaSets
10. Deployments