Things I wish I knew, before working with Azure- Everything you should know about, before starting with Microsoft Azure!

  • What are resource groups in Azure?
    • What is a resource?
      • Any manageable item that you can rent through Azure is considered a resource. For example, virtual machines, storage accounts, web apps, databases functions and more, basically anything you create and manage in Azure
    • What is a resource provider?
      • Resource providers are the services, that supplies Azure with resources on demand. For example, Microsoft.Compute provides virtual machines. Microsoft.Storage is providing storage as the name implies. The provider gives access to operations on the resources he is providing.
    • What is a resource manager template?
      • The resource manager template defines which resources to deploy to a resource group. With templates, you can define how resources will be made available consistently and also how and which resources to release, when the system is in a critical predefined state.
    • What is a resource group?
      • Resource Groups describe a collection of all building blocks you have defined for your app. If you want to share data between apps or functions, it makes often sense to put them in the same groups, as it also makes exchanging data between them easier.
    • What does deploying a web app mean in azure context?
      • When we deploy a web app in Azure, all we do is just tell Microsoft to rent out a few computer parts for us to run our server! We can define our web app locally and then just upload it to the cloud servers, which will serve our content worldwide!
  • What are the Azure functions
    • Serverless functions in Azure can be defined very simply and connected to any app with minimal effort! The code for the function is stored on azures servers and only invoked when it is triggered by one of the many trigger mechanism. They consist of a trigger, input bindings and output binding which we will explain in detail later on
  • What are Azure Logic apps
    • Logic apps enable you to automate and orchestrate tasks. They are one of the main tools to automate processes and save you precious time! Logic apps even let you combine and concatenate multiple different apps into one! Connect everything with everyone is the motto of this set of features.
  • What is a storage account and why do I need one in Azure?
    • A storage account is a reference to all the data object stored for your account like blobs, files, ques, tables, disks and so on.
  • Redis Cache
    • Instead of renting the normal data storage or the distributed Hadoop storage, you can also rent super fast Redis Cache, which is basically just RAM and highly cachable data storage. Depending on your use case, this can be very valuable for time and efficiency critical operations
  • Power Shell / Bash Shell
    • Microsoft provides a great CLI interface to manage your cloud infrastructure
  • What are the containers?
    • A container is basically a virtualized software. Instead of having to care about the hardware and the operating system, you just ask for a container and in that one, your software project will run. The great thing about containers is, that they are hardware and OS independent, so you can just share your app container with someone and they can run your app with any issues, saving a huge amount of time when deploying software! Using such a container-based design yields more efficient architectures. Containers also let your team work faster, deploy more efficiently and operate at a much larger scale. Using a container also mean, you do not have to set up a whole VM, it is just everything you need to contain the app! This means containers are much more lightweight than VM’s This basically means, your software is decoupled from the hardware and OS, which leaves many developers with much less headache! It also makes for a clean split between infrastructure management and software logic management
  • What are Azure function triggers?
    • Since functions in Azure are serverless, we need to define a trigger, which tells Azure when to call our function. There are many possible triggers we could use, the most common ones get triggered by any changes to the Cosmos DB, the blob storage, the queue storage, and the timer.
  • What are Azure function bindings?
    • Azure function bindings basically define the input and output arguments of any function in Azure.
  • What does serverless mean? Serverless function?
    • In the context of Azure, the are serverless functions and serverless logic apps. But they still run on a server, so how are they related to serverless? The real meaning behind serverless is, that developers do not worry about the servers, it all happens automagically in the backend implemented by Microsofts engineers
  • BONUS : What is the difference between a VM and a container?
    • You can imagien the VM as virtualizing the hardware and a container is virtualizing the software

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