Node.js Everywhere with Environment Variables! (John Papa) - Wow! This awesome post brings you from zero to hero with steps of a extreme clarity. If you are interested in Node.js it a must.
Cloud
Azure Functions Contact Form HTTP Trigger (Tom Faltesek) - A really interesting and useful utilization of an Azure Function to boost an existing solution (in this case a blog)
Building a Web App With Yeoman (Oscar Salas) - A very complete and detailed post about yeoman. What it is, what it can do, how to install it. The only thing missing could be one final example to get started.
The Personal MBA: Master the Art of Business (Josh Kaufman) - An interesting book that helps to get in the mood, get prepared, and maybe for some whom weren't sure yet about the idea of a personal MBA (compare to the regular one)... Help to start planning and get moving. This book isn't an one book miracle MBA certification, but most likely a really good way to understand the journey the reader is about to start. The complete list of books to achieve this adventure is constantly updated and is available online.
For a project I just started, I need to create Azure resources from code. In fact, I want to create an Azure Container Instance. I already know how to create a container from Logic Apps and Azure CLI/PowerShell, but I was looking to create it inside an Azure Function. After a quick research online, I found the Azure Management Libraries for .NET (aka Fluent API) a project available on Github that do just that (and so much more)!
In this post, I will share with you how this library work and the result of my test.
The Goal
For this demo, I will create a .Net Core console application that creates an Azure Containter Instance (ACI). After it should be easy to take this code and migrate to an Azure Function or anywhere else.
The Console Application
Let's create a simple console application with the following command: dotnet new console -o AzFluentDemo cd AzFluentDemo dotnet add package microsoft.azure.management.fluent The last command will use the nuget package available online an add it to our solution. Now we need a service principal so our application could access the Azure subscription. A since way to create one is the use Azure CLI az ad sp create-for-rbac --sdk-auth > my.azureauth This will create an Active Directory (AD) Service Principal (SP) and write the content into the file my.azureauth. Perfect, now open the solution, for this kind of project, I like to use Visual Studio Code so code . will do the work for me. Replace the content of the Program.cs file by the following code.
using System;
using Microsoft.Azure.Management.Fluent;
using Microsoft.Azure.Management.ResourceManager.Fluent;
using Microsoft.Azure.Management.ResourceManager.Fluent.Core;
namespace AzFluentDemo
{
class Program
{
static void Main(string[] args)
{
string authFilePath = "/home/frank/Dev/AzFluentDemo/my.azureauth";
string resourceGroupName = "cloud5mins";
string containerGroupName = "frank-containers";
string containerImage = "microsoft/aci-helloworld";
// Set Context
IAzure azure = Azure.Authenticate(authFilePath).WithDefaultSubscription();
ISubscription sub;
sub = azure.GetCurrentSubscription();
Console.WriteLine($"Authenticated with subscription '{sub.DisplayName}' (ID: {sub.SubscriptionId})");
// Create ResoureGroup
azure.ResourceGroups.Define(resourceGroupName)
.WithRegion(Region.USEast)
.Create();
// Create Container instance
IResourceGroup resGroup = azure.ResourceGroups.GetByName(resourceGroupName);
Region azureRegion = resGroup.Region;
// Create the container group
var containerGroup = azure.ContainerGroups.Define(containerGroupName)
.WithRegion(azureRegion)
.WithExistingResourceGroup(resourceGroupName)
.WithLinux()
.WithPublicImageRegistryOnly()
.WithoutVolume()
.DefineContainerInstance(containerGroupName + "-1")
.WithImage(containerImage)
.WithExternalTcpPort(80)
.WithCpuCoreCount(1.0)
.WithMemorySizeInGB(1)
.Attach()
.WithDnsPrefix(containerGroupName)
.Create();
Console.WriteLine($"Soon Available at http://{containerGroup.Fqdn}");
}
}
}
In the first row, I declare a few constants. The path of the service principal created earlier, resource group name, the container group name, and the image I will use. For this demo aci-helloworld. Then we get access with the Azure.Authenticate. Once we got access, it's y easy and the intellisense is fantastic! I don't think I need to explain the rest of the code as it already self-explanatory.
Got an Error?
While running you main in contour an error message complaining about the namespace not being registered or something like that ( I'm sorry I did not note the error message). You only need to register it with the command:
az provider register --namespace Microsoft.ContainerInstance
It will take a few minutes. To see if it's done you can execute this command:
az provider show -n Microsoft.ContainerInstance --query "registrationState"
Wrap it up
And voila! If you do a dotnet run after a minute or two, you will have a new web application running inside a container available from http://frank=containers.eastus.azurecontainer.io. It's now very easy to take that code and bring it to an Azure Function or in any .Net Core Application that runs anywhere (Linux, Windows, Mac Os, web, containers, etc.)!
Ghost Contact Form with Azure Functions (Tom Faltesek) - Being myself a user of both Ghost and Azure function I'm very excited about this new series of posts.
Building offline Blazor application (Gunnar Peipman) - A very interesting post about an experience done with Blazor. It's usually during those that I learn the most.
Introducing the Cake.Discord Addin (Gary Ewan Park) - A few weeks ago I used cake to deploy in Azure and I was very impressed by cake. Its great to see this project continues to evolve and get new addin is very cool.
Marking up the Web with ASP.NET Core and Markdown (Rick Strahl) - So many great ideas and cool projects in this article. If you use Markdown it's a must. If you are not using markdown, hmmm... what?!
Fast Focus (Damon Zahariades) - Great short book. Not like the other of his kind, this book goes right to the point and offers actionable item. It's very practical and accessible to everyone. At the end of the book, you know what to do to get started and improve your focus.
Azure Portal October update (Peri Rocha) - I'm sure you noticed... The portal is always evolving getting better every day. This post list all the changes, what have you missed?
Windows Virtual Desktop (null) - This week Microsoft announced what looks like a very simple way to get powerful environments without all the trouble to maintain them. More to come.
Introduction to Azure Durable Functions (Maxime Rouiller) - This is a great post that explains what are durable functions and shows a simple case to gives context.
The Five Dysfunctions of a Team: A Leadership Fable (Patrick Lencioni) - I really enjoyed this book. The fact the first the material was passed as a story adds a lot of perspective and to our comprehension. In the last chapter the author return to the theories and gives more details. I completely devour that book; I'm looking forward to reading more.
Miscellaneous
paddling.com (Wayne Horodowich) - I could not agree more.
1575 Coding on Twitch with Jeff Fritz (Carl Franklin, Richard Campbell, Jeff Fritz) - Yep developers are also on twitch and they rock. We learn how it all started in this episode.
For a project I have, I wanted to validate if containers were easier to use compare to regular code with services in Azure. I needed to refresh myself with Docker, so I decide to do what I thought would be a simple test: Create an Asp.Net Core web site in a container and access it on my machine.
This post is about my journey to finally achieve this goal, as you may guess it didn't work on the first attempt.
The Goal
One reason why I was looking at containers, it's because it's supposed to be working everywhere right? Well yes but sometimes with a little of effort. The goal here is to be able to run the same container on my main PC, my surface, a Linux VM and of course in Azure.
The context
I have a different setup on my main machine and on my surface. On my PC, I'm using VirtualBox for my VMs so I'm not running Docker for windows, but Docker Toolbox. This flavor (older version) of Docker will create a VM in VitualBox instead of Hyper-V. I couldn't use Docker for Windows like on my Surface, because the two virtualization softwares don't run side by side.
I also wanted to use only tools available on each of this platform, so I decided not to use Visual Studio IDE (the big one). Moreover, I wanted to understand what was happening so I didn't want too much magic involve. Visual Studio is a fantastic tool and I love it. :)
Installing Docker
I needed to install Docker on my Surface. I downloaded Docker Community Edition (CE), and because Hyper-V was already installed everything ran smoothly. On Windows, you need to share the "C" drive from the Docker setting. However, I was getting a strange "bug" when trying to share mine. It was asking my to login with AzureAD and was ignoring my request by letting the share drive unchecked.
Thanks to my new friend Tom Chantler, I did search for too long. See the thing is I'm using an AzureAD account to login, and something is not working right at the moment. As explained in Tom's post: Sharing your C drive with Docker for Windows when using Azure Active Directory, to walkaround this situation, I only had to create a new user account with the exact name as my AzureAD account, but without the AzureAD prefix (ex: AzureAD\FBoucher became FBoucher). Once that was done I could share the drive without any issue.
Let's get started with the documentation
The HelloWord container worked like a charm, so I was ready to create my Asp.Net Core website. My reflex was to go on docs.docker.com and follow the instruction from Create a Dockerfile for an ASP.NET Core application. I was probably doing something wrong, because it didn't work. So I decided to start from scratch and do every step manually... I always learn more that way.
Let's start by the beginning
Before moving everything in a container, we need a web application. This can be easily done from the terminal/ command prompt, with the commands:
dotnet new mvc -o dotnetcoredockerappservicedemo
cd dotnetcoredockerappservicedemo
dotnet restore
dotnet publish -c release -o app/ .
Here we create a new folder with a website using the mcv template. I then go in that new folder and restore the Nuget package. To test the we site locally simply use dotnet run. And finally, we build and publish the application into the subfolder app.
Moving to Docker
Now that we have our app it's time to containerize it. We need to add some Docker instruction in a dockerfile. Add a new file name dockerfile (no extension) to the root folder and copy/paste these commandes:
To start Docker with Docker Tool just start the Docker Quickstart Terminal
This instruction will specify how to build our container. First, it will download the image microsoft/aspnetcore or microsoft/dotnet:2.1-aspnetcore-runtime. We specify the work directory, then copy the app folder to app folder inside the container. Finally, we specify the entry point of our application telling it to start with dotnet.
Like Git and it's gitIgnore file docker has the same thing with .dockerignore (no extension). Add that file into your folder to ignore the bin and obj folder.
# .dockerignore
bin\ obj\
Now that the instructions about how to build our container are completed, we can build our container. Execute the following command:
docker build -t dotnetcoredockerappservicedemo .
This will build dotnetcoredockerappservicedemo from the current folder.
Running Docker container locally
Everything is in place, the only thing missing is to run it. If you want to run it locally just go with this command:
docker run -p 8181:80 dotnetcoredockerappservicedemo
On my machine, the port 80 is always used. So I remap the port 80 to 8181, feel free to change it at your convenience. The website will be available at localhost:8181
If you are running Docker Tool (older version of Docker), you need to get the IP of your VM. To get it do
docker-machine ip
Running in the cloud
To run our container into Azure you will need to publish it to the cloud first. It could be on DockerHub or in a private registry on Azure. I decided to go with Azure. First, we need to create a registry, then publish our container.
az group create --name dotnetcoredockerappservicedemo --location eastus
az acr create --resource-group dotnetcoredockerappservicedemo --name frankContainerDemo01 --sku Basic --admin-enabled true
az acr credential show -n frankContainerDemo01
The last command az acr credential show will provides information to tag our container with our repository name and also gives us the credential to be able to push. Of course, you could go to the portal.azure.com and get the information from the Registry's Access Keys blade.
docker tag dotnetcoredockerappservicedemo frankcontainerdemo01.azurecr.io/dotnetcoredockerappservicedemo:v1
Let's connect our docker to our registry, and then push (upload) our container to Azure.
# The https:// is important...
docker login https://frankcontainerdemo01.azurecr.io -u frankContainerDemo01 -p <Password_Retreived>
docker push frankcontainerdemo01.azurecr.io/dotnetcoredockerappservicedemo:v1
Great the container is in Azure. Now let's create a quick webApp to see it. We could also use the Azure Container Instance (ACI) that would be only one command, but because the demo is a website, it won't make sense to use ACI for that.
To get an Application service, we need a Service plan, and then we will create an "empty" webapp. To do that we will specify the runtime without providing any code/binary/container. I wasn't able to create a webapp from a private Azure registry in one command, so this is why I'm doing it in two.
az appservice plan create --name demoplan --resource-group dotnetcoredockerappservicedemo --sku S1 --is-linux
az webapp create -g dotnetcoredockerappservicedemo -p demoplan -n frankdockerdemo --runtime "DOTNETCORE|2.1"
On Windows, I got the following error message: '2.1' is not recognized as an internal or external command, operable program or batch file. The PowerShell command line escape "--%" solves the problem: az --% webapp create -g dotnetcoredockerappservicedemo -p demoplan -n frankdockerdemo --runtime "DOTNETCORE|2.1"
If you check the website right now you should have page saying that the site is up but empty. Let's update the container settings with our registry and container settings.
az webapp config container set -n frankdockerdemo -g dotnetcoredockerappservicedemo --docker-custom-image-name frankcontainerdemo01.azurecr.io/dotnetcoredockerappservicedemo:v1 --docker-registry-server-url https://frankcontainerdemo01.azurecr.io --docker-registry-server-user frankContainerDemo01 --docker-registry-server-password <Password_Retreived>
It's works of course!
Conclusion
It's only four steps: create the .Net Core application, package it into a Docker container, publish our container into our Azure Registry, and create an application service base on that container. However, because all this tech are cross-platform, sometimes you get some little tiny differences between the platform, and those could become time-consuming. It was a great little project that turned out to be a lot more than expected, but I learn so much!
I'm very happy with the result... expect more of Docker in the future!
Git Commands to Keep a Fork Up to Date (Phil Nash) - Git can be overwhelming at the beginning, this is why this post is a great one to confirm what you may already know and learn a bit more.
AWS Step Function Serverless Applications (Gerald Bauer) - What a great tutorial! Very interesting all the plumbing and toolings is explained in this Hello word AWS Lambda.
PowerApps Newbie – getting started (Jen Kuntz) - Nice first post of a promising series ;) To all the #powerusers of planet earth... you want to use PowerApps... so this is your chance to get started!
7 best practices for building containers (Google) - This post helps us to improve our skill with containers. It also shares a lot of excellent more detailed references.
How to Lead When You’re Feeling Afraid (Peter Bregman) - A really interesting post that will help us, for sure, because we all leave this kind of situation one day or the other.
Defeating Electron (Felix Rieseberg) - Pretty good is the chance that you are (just like me) using an application builds on top of electron. This post explains a little about what's it happening under the hood.
Power BI and Sudoku – Yes Please (Mike Carlo) - Awesome! I really like when people think outside of the box. This post gives you link to the game and to a more detailed post.
New Updates for Azure Development in Visual Studio (Visual Studio Team) - Great update to the tooling that makes our life easier... Or at least that reduce (a lot) the pain when starting and deploying a project.
A flexible new way to purchase Azure SQL Database (Alexander (Sasha) Nosov) - A new kind of hybrid way to get your databases in Azure. It's not a full service, neither full pure VM... It definitely looks like less trouble for better performance.
How to Scale Your API Design Process with OpenAPI (Ryan Pinkham) - This post introduces SwaggerHubs. I didn't know about this tool, it looks really good. As a heavy Azure user cannot miss some similitude with Api Managment. I will definitely give it a try.
Styling Social Media Icon Lists in CSS (Mark Heath) - Yeah right, we can read CSS and probably hack some stuff... But it's excellent to learn how to do simple things the good way. And this post shows exactly that.
Power BI Desktop January Feature Summary (Amanda Cofsky) - It looks like some team did not take a lot of time-off during the Holidays... So many great new functionalities; it's a fantastic way to start the year.
Node.js Everywhere with Environment Variables! (John Papa) - Wow! This awesome post brings you from zero to hero with steps of a extreme clarity. If you are interested in Node.js it a must.
The Personal MBA: Master the Art of Business (Josh Kaufman) - An interesting book that helps to get in the mood, get prepared, and maybe for some whom weren't sure yet about the idea of a personal MBA (compare to the regular one)... Help to start planning and get moving. This book isn't an one book miracle MBA certification, but most likely a really good way to understand the journey the reader is about to start. The complete list of books to achieve this adventure is constantly updated and is available online. 
Suggestion of the week
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Cloud
Cloud
Cloud
