aws-cdk-k0s-cluster

⚠️ DO NOT USE IN PRODUCTION ⚠️

This serves purely as an experiment for me to create a test k0s cluster for testing purpose with Graviton spot instances.

This goes against every best practices as I'm provisioning everything in public subnets :D

Learning notes

• ETCD_UNSUPPORTED_ARCH=arm64 is needed. See the issue here. This is why we need to set environment variable in k0scontroller.service.

Getting started

• Install cdk cli with npm install aws-cdk -g
• Install projen with npm install projen -g
• Build with npm run build
• Test with npm run test

How to use

import * as cdk from '@aws-cdk/core';
import * as ec2 from '@aws-cdk/aws-ec2';
import * as k0s from '../../src';

const app = new cdk.App();

const env = {
  region: app.node.tryGetContext('region') || process.env.CDK_INTEG_REGION || process.env.CDK_DEFAULT_REGION,
  account: app.node.tryGetContext('account') || process.env.CDK_INTEG_ACCOUNT || process.env.CDK_DEFAULT_ACCOUNT
};

const stack = new cdk.Stack(app, 'k0sCluster', { env })

new k0s.Cluster(stack, 'Cluster', {
  vpc: k0s.VpcProvider.getOrCreate(stack),
  spotWorkerNodes: true,
  workerMinCapacity: 3,
  workerInstanceType: new ec2.InstanceType('m6g.medium'),
  controlPlaneInstanceType: new ec2.InstanceType('m6g.medium'),
  bucketRemovalPolicy: cdk.RemovalPolicy.DESTROY
})

For complete example, you can go to example folder, do a cdk bootstrap and then cdk deploy from there.

cd example
cdk bootstrap
cdk deploy

License

MIT License