using-vpc-getazs.ts

import cdk = require('@aws-cdk/cdk');
import ec2 = require('@aws-cdk/aws-ec2');
import { Fn } from '@aws-cdk/cdk';

export class MyStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    this.node.setContext(`availability-zones:account=${this.env.account}:region=${this.env.region}`, [
      Fn.select(0, Fn.getAZs()),
      Fn.select(1, Fn.getAZs()),
      Fn.select(2, Fn.getAZs())
    ]);

    new ec2.VpcNetwork(this, 'vpc');
  }
}