How do I define the password rules for Identity in ASP.NET 5 MVC 6 (vNext)?

I actually ended up figuring this out, it turns out you need to supply AddDefaultIdentity with a suitable lambda expression that configures the IdentityOptions it provides. This is done inside the ConfigureServices method within the Startup class, like so:

public class Startup {    public void ConfigureServices(IServiceCollection services) {        // Add Identity services to the services container.        services.AddDefaultIdentity<ApplicationIdentityDbContext, ApplicationUser, IdentityRole>(Configuration,            o => {                o.Password.RequireDigit = false;                o.Password.RequireLowercase = false;                o.Password.RequireUppercase = false;                o.Password.RequireNonLetterOrDigit = false;                o.Password.RequiredLength = 7;            });    }}

Update 2:

The above was true in the beta1 versions of the framework, in the latest rc1 beta5 it has changed slightly to:

services.AddIdentity<ApplicationUser, IdentityRole>(o => {    // configure identity options    o.Password.RequireDigit = false;    o.Password.RequireLowercase = false;    o.Password.RequireUppercase = false;    o.Password.RequireNonAlphanumeric = false;    o.Password.RequiredLength = 6;}).AddEntityFrameworkStores<ApplicationIdentityDbContext>().AddDefaultTokenProviders();

If you have set up a new Web project with Individual User Accounts go to:

App_Start -> IdentityConfig.cs

There you can edit the following defaults:

manager.PasswordValidator = new PasswordValidator{    RequiredLength = 6,    RequireNonLetterOrDigit = true,    RequireDigit = true,    RequireLowercase = true,    RequireUppercase = true,};

in startup.cs:

   services.AddIdentity<ApplicationUser, IdentityRole>(x =>        {            x.Password.RequiredLength = 6;            x.Password.RequireUppercase = false;            x.Password.RequireLowercase = false;            x.Password.RequireNonAlphanumeric = false;        }).AddEntityFrameworkStores<ApplicationDbContext>().AddDefaultTokenProviders();