scheduled-scaler

README

scheduled-scaler

This is a Kubernetes operator for scheduled scaling of deployments.

Status: Alpha. Specification may change.

Getting Started

Deploy

You can deploy the resources from deploy/scheduled-scaler.yaml.

kubectl apply -f https://raw.githubusercontent.com/int128/scheduled-scaler/master/deploy/scheduled-scaler.yaml

Create a scaler

This tutorial shows how you can schedule a scaling of a deployment.

Deploy an echoserver by applying echoserver.yaml.

kubectl apply -f echoserver.yaml

Create echoserver-daytime.yaml with the following content.

apiVersion: scheduledscaling.int128.github.io/v1
kind: ScheduledPodScaler
metadata:
  name: echoserver-daytime
spec:
  scaleTarget:
    selectors:
      app: echoserver
  schedule:
    - daily:
        startTime: 21:00:00
        endTime: 07:00:00
      timezone: Asia/Tokyo
      spec:
        replicas: 0
  default:
    replicas: 1

Note that the timestamps are in UTC.

Apply the resource.

kubectl apply -f echoserver-daytime.yaml

Make sure the replicas of the deployment is the desired state.

kubectl -n echoserver get deployment

Development

# Deploy the image to the kind cluster
make docker-load-kind
make deploy

# Undeploy from the kind cluster
make undeploy

Contributions

This is an open source software. Feel free to open issues and pull requests.