Program.cs

using System;
using System.Collections.Generic;

using Pulumi;
using Pulumi.Azure.AppService;
using Pulumi.Azure.Core;
using Pulumi.Azure.CosmosDB;

class Program
{
    static Task<int> Main(string[] args)
    {
        return Deployment.RunAsync(() => {
            var locations = new[] { "WestUS", "WestEurope", "SouthEastAsia" };

            var rg = new ResourceGroup("myapp-rg", new ResourceGroupArgs {
                Location = locations[0],
            });

            var app = new CosmosApp("myapp", new CosmosAppArgs {
                 ResourceGroup = resourceGroup,
                 Locations = locations,
                 DatabaseName = "pricedb",
                 ContainerName = "prices",
                 Factory = (location, db) => {
                     var func = new ArchiveFunctionApp("myapp-func",
                          new ArchiveFunctionAppArgs {
                              Location = location,
                              Archive = new FileArchive("app"),
                              AppSettings = new Dictionary<string, string> {
                                  ["COSMOSDB_ENDPOINT"] = db.Endpoint,
                              },
                          },
                      );
                      return func.App.ID;
                 },
            });
        });
    }

    // Definitions of CosmosApp and ArchiveFunctionApp elided for brevity.
    // Actual runtime application code is stored in the "app" directory.
    // See link to the full example at the end of this article.
}