The document discusses complexity in Kubernetes and introduces Koki Short as a solution. Koki Short aims to simplify Kubernetes deployment and management through a shorthand YAML syntax, declarative interface, state management capabilities, and abstraction of infrastructure details. It builds on concepts from ksonnet and Argo to provide lifecycle modeling, automated operations, and standardized application definitions across clusters and clouds.

1. Introducing Koki Short
Sidhartha Mani
Founder and CEO
https://koki.io

2. Complexity in Kubernetes
● Managing Cluster

3. Complexity in Kubernetes
● Managing Cluster
● Mental Models

4. Complexity in Kubernetes
● Managing Cluster
● Mental Models
● Managing Manifest files

5. Complexity in Kubernetes
● Managing Cluster
● Mental Models
● Managing Manifest files
● Managing Runtime Operations

6. Market trends
● Consumerization of Enterprise software
● Empowered engineering teams
● Hybrid cloud movement

7. Mental Models
● ksonnet

8. Mental Models
● ksonnet
● Tries to the ease the
understanding of kubernetes
primitives
● Developer centric view of
kubernetes resources

9. Managing resource files
● ksonnet
● Adds abstraction to make it easier
to manage resource files
● Tries to promote reuse

10. Managing runtime operations
● argo
● ovrclk
● ...

11. Managing runtime operations
● argo
● ovrclk
● ...
● Imperative task model on top of
Kubernetes
● Infrastructure agnostic

12. Koki
https://github.com/koki/koki

13. Deploy Definition - Master
kind: Pod
apiVersion: v1
metadata:
name: postgresql-master
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
key: zone
operator: eq
values:
- AZ1
containers:
- name: master-container
image: wlan0/postgresql-master:v0.1
volumeMounts:
- mountPath: /postgresql
name: masterPV
- name: master-sidecar
image: wlan0/postgresql-sidecar:v0.1
volumes:
- name: masterPV
awsElasticBlockStore:
volumeID: <awsVolumeID>
fsType: ext4

14. Deploy Definition - Short hand syntax
pod:
containers:
- name: master-container
image: wlan0/postgresql-master:v0.1
volumeMounts:
- mountPath: /postgresql
name: masterPV
- name: master-sidecar
image: wlan0/postgresql-sidecar:v0.1
name: posgresql-master
host: hg1

15. Deploy Definition - Master
kind: Pod
apiVersion: v1
metadata:
name: postgresql-master
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
key: zone
operator: eq
values:
- AZ1
containers:
- name: master-container
image: wlan0/postgresql-master:v0.1
volumeMounts:
- mountPath: /postgresql
name: masterPV
- name: master-sidecar
image: wlan0/postgresql-sidecar:v0.1
volumes:
- name: masterPV
awsElasticBlockStore:
volumeID: <awsVolumeID>
fsType: ext4

16. Deploy Definition - Short hand syntax
pod:
containers:
- name: master-container
image: wlan0/postgresql-master:v0.1
volumeMounts:
- mountPath: /postgresql
name: masterPV
- name: master-sidecar
image: wlan0/postgresql-sidecar:v0.1
name: posgresql-master
host: hg1

17. Deploy Definition - Master
kind: Pod
apiVersion: v1
metadata:
name: postgresql-master
spec:
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
key: zone
operator: eq
values:
- AZ1
containers:
- name: master-container
image: wlan0/postgresql-master:v0.1
volumeMounts:
- mountPath: /postgresql
name: masterPV
- name: master-sidecar
image: wlan0/postgresql-sidecar:v0.1
volumes:
- name: masterPV
awsElasticBlockStore:
volumeID: <awsVolumeID>
fsType: ext4

18. Deploy Definition - Imports
Import masterPV from master-pv.yaml
pod:
containers:
- name: master-container
image: wlan0/postgresql-master:v0.1
volume: masterPV:/postgresql
- name: master-sidecar
image: wlan0/postgresql-sidecar:v0.1
name: posgresql-master
host: hg1
volume:
name: master-pv
provision: true
awsEbs:
iops: 20000
capacity: 500G
master-pv.yaml

19. Application Lifecycle Modelling
Active
Upgrade
Failover
Restore
Deploy
End

20. State Machine controls
import pod1.yaml
Import handlers.yaml
app:
name: redis
resources:
- pod1
- service: //service definition in
short-hand syntax
name: svc1
selectors:
pod1
expose: //services exposed by this app
- svc1
states:
- create: //state before deploy
handlers:
- provision-volumes //imported
from handlers.yaml
- create-certs
- deploy // no handlers needed
- upgrade:
handlers:
- perform-backup

21. Abstract Hosts & Grouping
PostgreSQL
Slave
PostgreSQL
Master
PostgreSQL
Slave
Synchronous replication
Asynchronous replication
Host 1 Host 2 Host 3 Host 4 Host 5
Availability Zone 1 Availability Zone 2
HG1 HG2

22. Auto pilot pattern
Func pre(input obj, *out obj) {
}
Func post(intput obj, *out obj) {
}
Lifecycle
Controller
Application PodApplication Pod
kubectl apply -f ...

23. Koki
● Yaml short hand syntax
● Builds on Kube-native models
● Declarative interface
● Cluster and Infrastructure agnostic
● State Management and more powerful features...

24. Advantages
● Acceleration & Speed
● Control
● Standardization
● Simplicity
● Scalability