Zeta functions - K8S

This is a rewrite of the original Zeta Functions project, utilizing the full capabilities of K8S.

Glossary

• Zeta / Zeta function - The FaaS entity
• Zeta Deployment - Refers to having:
  • Metadata stored
  • The user's ZIP stored
  • The underlying k8s infra deployed
• Zeta Deployment Resource - A K8S resource
• Zeta Deployment Resource Name (DRN) - Name of the Zeta Deployment resources

Quickstart

• make sure to have HPA added to the cluster

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

• Run install.sh
• Port forward the api server

kubectl port-forward -n zeta svc/zeta-apiserver 8080:80

User code example

Python

### fibo.py
def fibo(n):
    memo = [0, 1]
    for i in range(2, n+1):
        memo.append(memo[i-1] + memo[i-2])
    return memo[-1]


### zeta.py
from .fibo import fibo
import json

def zetaHandler(event, context):
    n = event["body"]["n"]
    return {
        "statusCode": 200,
        "headers": {
            "Content-Type": "application/json"
        },
        "body": json.dumps({
            "fib": fibo(n)
        })
    }