Skip to main content

[Post Event] ITCamp Summer Community Event, August 18 - Cluj-Napoca

In August 18, 2016 we had IT Camp Summer Community Event in Cluj-Napoca. There were more than 55 people that attended to this event. In comparison with past events, we dedicated more time for networking between the sessions and at the end of the event.
There were two session in the afternnon. The first one was about .NET Security (including .NET Core) and the seccond one was about how we can write actor based concurrency using Elixir. Personally I discover a new word that Elixir has and is available for more than 30 years in Erland world. Seeing a system that has availability with 8 nines (99.99999) is something impressive, but thinking that such a system was availalbe 25 years ago is more impressive.
As usualy a big THANK YOU to all attendies and people that were involved behind the scene. And another THANK YOU to our sponsors that made this event possible:

Evozone
Recognos
You can find below the abstract to sessions and the slides from each of them. At the end of the post you can find pictures from the event.

See you next time!

.NET Security (Radu Vunvulea)
Abstract: When is the last time when you pushed an update to .NET framework in a production environment? Did you define an updated process of .NET framework for production environments? Is the support team aware about what can happen if a security update is not pushed to the machines? 
In this session we will take a look on some security problems that .NET framework has and what can happen if we don't take security into account. We will take a look on different versions of .NET (including .NET Core). Best practives related to this topic will be covered and debated.
Slides:

Actor based concurrency with Elixir
Abstract: Because of increased demand for interconnected systems(IOT, SAAS) we need new improved ways of handling reliable (soft)real-time systems. One battle-tested approach is based on the Actor Model pioneered by Erlang and brought to the masses by Elixir.
Topics that will be covered:
- short introduction to functional programming principles with examples in Elixir
- actor model concurrency: why is it needed, advantages & disadvantages
- OTP patterns for handling agents: GenServer & Supervisor

Comments

Popular posts from this blog

How to check in AngularJS if a service was register or not

There are cases when you need to check in a service or a controller was register in AngularJS.
For example a valid use case is when you have the same implementation running on multiple application. In this case, you may want to intercept the HTTP provider and add a custom step there. This step don’t needs to run on all the application, only in the one where the service exist and register.
A solution for this case would be to have a flag in the configuration that specify this. In the core you would have an IF that would check the value of this flag.
Another solution is to check if a specific service was register in AngularJS or not. If the service was register that you would execute your own logic.
To check if a service was register or not in AngularJS container you need to call the ‘has’ method of ‘inhector’. It will return TRUE if the service was register.
if ($injector.has('httpInterceptorService')) { $httpProvider.interceptors.push('httpInterceptorService&#…

ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded

Today blog post will be started with the following error when running DB tests on the CI machine:
threw exception: System.InvalidOperationException: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information. at System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName) This error happened only on the Continuous Integration machine. On the devs machines, everything has fine. The classic problem – on my machine it’s working. The CI has the following configuration:

TeamCity.NET 4.51EF 6.0.2VS2013
It seems that there …

Run native .NET application in Docker (.NET Framework 4.6.2)

Scope
The main scope of this post is to see how we can run a legacy application written in .NET Framework in Docker.

Context
First of all, let’s define what is a legacy application in our context. By a legacy application we understand an application that runs .NET Framework 3.5 or higher in a production environment where we don’t have any more the people or documentation that would help us to understand what is happening behind the scene.
In this scenarios, you might want to migrate the current solution from a standard environment to Docker. There are many advantages for such a migration, like:

Continuous DeploymentTestingIsolationSecurity at container levelVersioning ControlEnvironment Standardization
Until now, we didn’t had the possibility to run a .NET application in Docker. With .NET Core, there was support for .NET Core in Docker, but migration from a full .NET framework to .NET Core can be costly and even impossible. Not only because of lack of features, but also because once you…