Showing posts with label aspnetcore. Show all posts
Showing posts with label aspnetcore. Show all posts

Reading Notes #435

Cloud


Programming


Podcast


☁️

Reading Notes #410


Every Monday, I share my reading notes. Those are the articles, blog posts, podcast episodes, and books that catch my interest during the week and that I found interesting. It's a mix of the actuality and what I consumed.

Programming

Databases

Podcast

  • Myself: It's not weird at all (Hanselminutes - Fresh Talk and Tech for Developers) - I nice episode much longer than the usual, but the guest is also special... It's Scott. During a Live Stream on Twitch it the Live Coders... People suggest making a podcast episode of the interview... I couldn't agree more.
  • The Power of Humor in Tech with Chloe Condon (Screaming in the Cloud) - Very refreshing episode with the awesome and very colorful Chloe. Nice show that goes to fast. Very interesting discussion about the non-traditional way to technical work, and its success.

Reading Notes #407


Every Monday, I share my reading notes. Those are the articles, blog posts, podcast episodes, and books that catch my interest during the week and that I found interesting. It's a mix of the actuality and what I consumed.

Cloud

  • Generating Images with Azure Functions (Aaron Powell) - Brilliant usage of Azure function and its the first one I see in F#! All the code is available in GitHub, definitely worth the detour.

Programming

  • Use MongoDB in Your C# ASP.NET Apps (Terje Kolderup) - This is a very complete tutorial the shows all the code and explains step by step how to add, configure and use MongoDB.

Podcasts

  • SPI 401: Jesse Cole—The Yellow Tux Guy (Jesse Cole) - Wow! Great show, if you don't feel pumped up and 200% motivated after listening to this show... We might be in Zombieland already.... 😜.

Miscellaneous

  • Is that position available for remote? (Mark Downie) - A very interesting post that, I think, explains well the 'behind the scene' of the response we can get when asking the remote question.
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Reading Notes #397


Suggestion of the week

Cloud

Programming

Miscellaneous

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Reading Notes #396

Suggestion of the week

Programming

Miscellaneous

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Reading Notes #393


Suggestion of the week

  • GitHub stars won’t pay your rent (Kitze) - What a great story! This is an awesome journey of a developers who worked hard, took some risk and... Got result. All developer should read this.

Cloud

Programming

Miscellaneous

Reading Notes #383

Cloud


Programming


Miscellaneous


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Reading Notes #356

IMG_20181128_122246Suggestion of the week

  • Security Headers (Tanya Janca) - Interesting post that shows the code/configuration we need to add, in order to get a more secure website.

Cloud


Programming


Miscellaneous


Books

fast_focus_coverFast Focus: A Quick-Start Guide To Mastering Your Attention, Ignoring Distractions, And Getting More Done In Less Time! (Damon Zahariades) - Great book well organized. Simple strike to the point. It is divided into three parts: understanding focus, creating an environment for focus, and employing tactics to focus. It lists the top 10 obstacles to staying focused and gives you a great idea on how to get start your journey.











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Reading Notes #350



markdig

Cloud


Programming


Miscellaneous


Books

Fast FocusFast 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.



Reading Notes #348

IMG_20181016_073145

Cloud


Programming


Data


Miscellaneous


~enjoy!

What happens when you mix Asp.Net Core, different versions of Docker and Azure for the first time

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 uncheckeddockerazureadcredentials.

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:

# dockerfile

FROM microsoft/dotnet:2.1-aspnetcore-runtime 
WORKDIR /app COPY /app /app 
ENTRYPOINT [ "dotnet" , "dotnetcoredockerappservicedemo.dll"]

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!
final2


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!


In a video, please!


I also have a video of this post if you prefer.




References

Reading Notes #332

IMG_20180616_101111

Cloud


Programming


Books

  • [Invisible Ink: A Practical Guide to Building Stories That Resonate] (Brian McDonald)  - We all know it, a story is the element that will give that little plus to our post, and video. This short book explains how to really make an effective one talking about the not visual things...
    Really interesting.

    ISBN 0984178627 (ISBN13: 9780984178629)

Reading Notes #313

roy_sky_ansi2Suggestion of the week


Cloud


Programming


Databases


Miscellaneous


Reading Notes #304

IMG_20171108_160315

Cloud


Programming


Databases


Podcast


Miscellaneous



Reading Notes #295

Sketch002

Cloud


Programming


Databases




Reading Notes #254

IMG_20161019_192029Cloud


Programming


Databases


Miscellaneous



Reading Notes #248

imageProgramming


Databases


Miscellaneous


Reading Notes #236


WhyAzureCLISuggestion of the week


Cloud


Programming


Miscellaneous

  • Happiness is DevOps’ Cornerstone (Alexandre Brisebois) - Interesting post that asks a lot of questions... I would like to see some graph or pie chart about our answers.
  • 5 Habits that Help Code Quality (View all posts by Erik Dietrich) - Yet another post about how to code better, but this one is refreshing. It explains why the opposite would be harmful and also give us a training plan for better chance of success.
  • What’s in your highlights folder? (Marc Gagne) - Because life is not only mistakes and bad luck.Here good tips to help you giving some sunshine into your life when needed.

Reading Notes #228

IMG_20160416_085010Cloud

  • But Why Do You Trust Your Data? (Buck Woody) - I consider this post as a really great teaser. After ready his post most chances are you will check the video it recommended... and next give a shot to Azure data Catalog.

Programming


Data

  • Analyzing your Azure Search traffic (Berni Torres Garayar) - Great post that explains how to improve our services by listening to our client's search requests, leveraging the new Azure Search Analytics and PowerBi.

Miscellaneous


~Frank