How add a migration to a EntityFramework 7 project

As per ASP.NET 5 and Entity 7 RC1 the steps would be:

1. Add a dependency to the Entity Commands nuget package in your main project. So in your project.json you should see this dependency "EntityFramework.Commands": "7.0.0-rc1-final"
2. Add an alias command to use from console later on. So in your project.json you would have the following ef command: "commands": { "ef": "EntityFramework.Commands", "web": "Microsoft.AspNet.Server.Kestrel" }

3. Open a console and run the migration commands. For example:

   D:\Projects\MyProject\src\MyProject.Web.Api>dnx ef migrations add Initial --targetProject MyProject.Data.SqlServer

4. Then review the Migration that ef will create in your project and apply the changes to your database (the database that is configured for your project) with the following command:

   D:\Projects\MyProject\src\MyProject.Web.Api>dnx ef database update

Notice that the attribute --targetProject allows you to specify the project where your DbContext is and where the folder Migrations would be created. If your DbContext is in your main project you can omit that (but I recommend to have a class library project for everything persistance related so this command would be handy)

In your Startup.cs is where you usually would have the configuration for Entity including the connection string. This is a basic example:

public Startup(IHostingEnvironment env)
    {
        // Set up configuration sources.
        var builder = new ConfigurationBuilder()
            .AddJsonFile("appsettings.json")
            .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
            .AddEnvironmentVariables();
        Configuration = builder.Build();
        builder.AddEnvironmentVariables();
        Configuration = builder.Build();
    }

    public IConfigurationRoot Configuration { get; private set; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        // Add framework services.
        services.AddEntityFramework()
            .AddSqlServer()
            .AddDbContext<KuneDbContext>(options => {
                options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]);
            });

        // Add identity here http://docs.asp.net/en/latest/tutorials/your-first-aspnet-application.html

        services.AddMvc();

        // Add application services
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
    {
        loggerFactory.AddConsole(Configuration.GetSection("Logging"));
        loggerFactory.AddDebug();

        if (env.IsDevelopment())
        {
            app.UseBrowserLink();
            app.UseDeveloperExceptionPage();
            app.UseDatabaseErrorPage();
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");

            // For more details on creating database during deployment see http://go.microsoft.com/fwlink/?LinkID=615859
            try
            {
                using (var serviceScope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>()
                    .CreateScope())
                {
                    serviceScope.ServiceProvider.GetService<KuneDbContext>()
                         .Database.Migrate();
                }
            }
            catch { }
        }

        app.UseIISPlatformHandler();

        app.UseStaticFiles();
        app.UseMvc(routes =>
        {
            routes.MapRoute(
                name: "default",
                template: "{controller=Home}/{action=Index}/{id?}");
        });

        //Seed Data if you want to load some test data in the DB
        //SeedData.Initialize(app.ApplicationServices);
    }

    // Entry point for the application.
    public static void Main(string[] args) => WebApplication.Run<Startup>(args);
}