NET Core 1.1 version and If you’ve been following the same steps mentioned from the article using. NET Core On Mac - Building An ASP.NET Core App With Web API, EF, PostgreSQL And Running It On Docker”. When you’re building ASP.NET Core applications using the MVC pattern, it would be nice to have some assistance when writing your views in razor templates.Last year, I wrote an article about “. In this article, we will recommend five Visual Studio extensions that will make your day-to-day tasks easier and even more enjoyable.In this article, we’ll explore ASP.NET Core 2.0 and Docker by building a simple Web API application and deploying it on a Docker container.NET Core can be installed in two ways: By installing Visual Studio 2017/2019 or by installing. NET Core 1.x to version 2.0. An update to fix the dark color theme was released on May 12, 2017.Over a year, there has been some changes from. On May 10, 2017, Visual Studio 2017 15.2 was released and added a new workload, 'Data Science and Analytical Applications Workload'. On April 5, 2017, Visual Studio 2017 15.1 was released and added support for targeting the. In Visual Studio 2017 for Mac, select File New Solution.Go ahead and install the following:•. PrerequisitesBefore getting our hands dirty, we’ll need to update/install the required tools and SDKs for us to build and run the application in MAC environment. Step 1: Creating an empty ASP.Note: Before you move down further, make sure that you have a basic understanding on ASP.NET Core and Docker because I will not talk about the details about each technology in this article. NET Core using Visual Studio 2017 v15. Install the latest Visual Studio 2017 and grab a copy of the Telerik ASP.NET Core controls and start developing your application with the newfound freedom and performance of ASP.NET Core.Visual Studio IDE Visual Studio for Mac Visual Studio Code. NET Core in mind and just work as expected on all of these target environments.NETCore 2.0 and ASP.NET Core 2.0Once you have installed all the prerequisites, we need to pull the required docker images for both. Docker for MAC (The latest version used as of this time of writing is 17.06.2-ce)Docker Images for. Visual Studio for MAC (Visual Studio 2017)
![]() ![]() NET Core application.The easiest way to install Postgres is using Homebrew which should be included upon installing the. In this particular demo, we will integrate PostgreSQL in our. We’ll be using EF Core to sync and update database from PosgreSql database and then use Web API to serve data requests.Entity Framework Core now supports a variety of database providers. For more information, see: Dockerfile ReferenceAdd the following command within the Dockerfile: FROM microsoft/aspnetcore-build:2.0.0 AS buildRUN dotnet publish -output /output -configuration ReleaseENTRYPOINT Switch back to Visual Studio and install the latest Nuget packages below:The packages above enable us to use EntityFramework Core as our data access mechanism. Jsonfile and then name the file as “appsettings” just like in the figure below:Then copy the following setting below: "DbContextSettings": // This method gets called by the runtime. Setting Up a Database ConnectionStringAdd a new empty. The initdb will also be generated with default user and database.To verify that our PostgresSQL Docker container is up and running, do: $ docker psTo test the connection, you can do: $ docker run -it -rm -link pg-db:postgres postgres psql -h postgres -U postgresNow that we have our database ready inside a docker container, it’s time for us to build the application. The -e allow us to set the environment variables, which in this case, we’ve set a password to "supersecret" for our Postgres image using the POSTGRES_PASSWORD variable.Running the command above will expose the postgres port 5432 which allow a standard container to be available to the linked containers. The -name assigns a name to the container, in this case we named our container as "localdb". Now, let's launch the PostgreSQL service container by running the following command: $ docker run -d -name localdb -e POSTGRES_PASSWORD=supersecret postgresThe -d option runs a container in the background and prints the container ID. Asp.Net Visual Studio 2017 Full Code BelowAdding MigrationsWe will be using EF Core tools to scaffold our migration and updating the database. (2) Migrating the database schemas to the latest version. The Database.Migrate() method piece is responsible for two things: (1) The creation of database in PostgreSQL if it does not exist yet. Here’s the full code below: using System Using Microsoft.Extensions.DependencyInjection Using (var scope = host.Services.CreateScope())Services.GetService().Database.Migrate() Var logger = services.GetRequiredService>() Logger.LogError(ex, "An error occurred seeding the DB.") Public static IWebHost BuildWebHost(string args) =>EF Core does not do the migration automatically, that’s why we need the pieces of configuration above for us to use Code-First migrations. Use this method to configure the HTTP request pipeline.Public void Configure(IApplicationBuilder app, IHostingEnvironment env)Let’s modify the Program.cs to create a database on startup. Hp scanner app for older macWe can’t add the Microsoft.EntityFrameworkCore.Tools.
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