Cloud as a Story - Vunvulea Radu

This weekend I participate at Codecamp Cluj  and I was impressive of the event size. More than 1.000 people and 10 tracks in parallel. This free event it's now at another level from size and no of participants perspective. There were more then 50 speakers that delivered quality sessions about IT trends and trends. From AI to IoT and software processes to Java and .NET we had them all in Cluj-Napoca for one day. At this event I had the oportunity to deliver to sessions about Azure Kubernetes Services and what quantum computer are preparing for the developers. You can find below slides and abstracts. Title : Demystifying microservices inside Azure AKS Abstract : The main purpose of this session is to put on the table things that we need to be aware of when we decide to run our .NET Core applications inside Azure Kubernetes Services. Microservices is powerful but comes with a new paradigm for how we need to design our applications and write our code. Join this sessio...

Last week I had the great opportunity to participate at ITDays conference. Whit more then 900 participates registered and 4 stages, ITDays become one of the most relevant conferences in Cluj-Napoca that takes place in the second part of the year. There were a lot of topics and areas that were discussed, from automotive and blockchain to AR and SAP. These 2 days conference was at its 6th edition and is becoming bigger and bigger every year. I delivered a session about Azure Kubernetes Services (AKS) and tips and tricks that we need to be aware of when we start this journey. I talked about important things that you need to know about scalability, load balancing, and tools around AKS. You can find below the slides from my session. Topic : Demystifying microservices inside Azure AKS Abstract : The main purpose of this session is to put on the table things that we need to be aware of when we decide to run our .NET Core applications inside Azure Kubernetes Services...

This week, together with ITCamp Community we organized a community event in Cluj-Napoca. There were two sessions where we talked about scraping the web and how we can automize the microservices solution on top of Kubernetes using Azure DevOps. There were more than 55 people that attended the event, being curious to find out more about best practices and lessons learned about how to write a crawler from scratch. Nowadays the limitations are not from a technology perspective but the legal side. Together with attendees, we discover how we can create a Kubernetes cluster at runtime for our environments without having to write or modify a line of code – Azure DevOps is here to make our life easier. The event was supported by UIPath , that provided us with a fantastic location and a tasty snack. You can find below the slide deck from the event and some photos. See you next time! Scraping the web for useful data : In present times, we are able to find data everywhere with a simple sea...

Let’s talk about different branching strategies that can be used when you use Git. Let’s assume that you are working on a project where based on what clients need (and pay) you shall be able to provide a specific list of features. Each client can decide what feature he wants to buy and use. The code is hosted inside Azure DevOps where you have a private Git repository. The solution is designed in such a way that you have a CORE layer, that it is common for all features. Because of the project complexity and how the solution is designed you cannot isolate each feature in a separate location. It means that the implementation of each feature can be found across the projects, in 2-3 different locations. A good approach that you can have is to create a branch for your CORE layer. Once this layer is stable for each feature, you can create a new branch from the CORE layer. The most significant advantage of this approach is the ability to merge different features at the moment when ...

A few days ago I took a look over Application Insights information that I have on one of my websites that are hosted as a Web App inside Microsoft Azure. In the last weeks I’ve made some improvements, and in theory, I should not have any errors reported by the Web App. Taking a look on the Application Insights, I notified a 409 error that was repeating pretty often. It seems that the HTTP Error is thrown each time when a new user session is an initiate, and some information is read from the Azure Table. POST azurestorageaccountname/Tables 409 The error was pretty odd initially, mainly because from the user flow and functionality, all things were on the right track. No errors reported on the UI, and the application behaved as expected. The 409 error represents reported at the moment when an entity already exists, for example when an Azure Table already exists. Looking closer on the call stack I notified that the error happens each time when ‘CreateIfNotExists’ method on the table w...

In the last post related to home automation and IoT solution we talked about a simple watering system - http://vunvulearadu.blogspot.com/2018/05/iot-home-automation-basic-plant.html In this post, we talk about how you can integrate the alarm security system and what is the approach that I used in the end. From the hardware perspective, I have an alarm system based on Paradox Magellan MG5050 with a K35 Keyboard and REM15 remote controls. On top of this, I have an additional module for messages - PCS 250 Mission To connect the alarm system to ESP8266 in such a way that I could arm and disarm the house using the ESP8266. First approach – Zone 8 To be able to control from an external device the Paradox board, you could, in theory, define a zone that can be used to arm or disarm the system. It can be confirmed using zone 8 (Z8) in combination with temper feature. Because I’m not a power user of Paradox systems, I was not able to configure it, just triggering the alarm system for...

In the last weeks, Microsoft announced a new cloud service available for all – Azure DevOps. The main scope of this post is to identify the core features of this new service and what are the differences between Visual Studio Team Services and Azure DevOps. What? Azure DevOps it is a collection of services used during the software development phase. All these services are interconnected between each other and can be orchestrated from one location. There is full support for services like: Task Management and Tracking (Agile boards, including Kanban) Source Control (Git) Build and Release for CI/CD Testing (Load and Performance Testing, manual or exploring testing) Wiki Reporting and custom dashboard capability CI/CD pipelines Extension for integration with 3rd parties Services Overview Some services are similar from the functionality perspective with the previous service called VSTS. It is normal because Microsoft replaces the original service (VSTS) with Azure DevOps t...