ArticCon 2022 (continued)

transforming it

This can be as simple as a function with some nested loops. In typescript it still winds up being a nested loop, but additionally we can use the type system to enforce some guarantees around our data structures.

import { topo, peers, firewall } from './config';

export class GcpNetworkingConfig implements NetworkDefinition {
  topo = topo;
  peers = peers;
  firewall = firewall;
  config: NetworkConfig<S, N<S>>;

  constructor(project: Project) {
    this.config =

       // for vpc in topo
        [vpc]: {
          project: project.name,
          subnets: {

           // for subnet in vpc.subNets
                [subnet]: {
                  config: {
                    project: project.name,
                    ipCidrRange: this.topo[vpc].subNets[subnet].cidr,
                    gatewayAddress: this.topo[vpc].subNets[subnet].cidr,
                  },

                },
              }
            }