Tuesday 27 December 2022

Configuring a message-based integration architecture

 In this guide, you will learn how to configure a message-based integration architecture. This reference architecture integrates enterprise backend systems, using message queues and events to decouple services for greater scalability and reliability. The backend systems may include software as a service (SaaS) systems, Azure services, and existing web services in your enterprise.

Msg Intg

Role-Based Access Control In Azure

 In this guide, you will see hands-on on RBAC. Access management for cloud resources is a critical function for any organization that is using the cloud. Azure role-based access control (Azure RBAC) helps you manage who has access to Azure resources, what they can do with those resources, and what areas they have access to.

Azure RBAC is an authorization system built on Azure Resource Manager that provides fine-grained access management of Azure

rbac

Implementing Azure Logic Apps

 Azure Logic Apps is a cloud service that helps you in building, hosting, scaling, managing, maintaining, and monitoring your apps. Logic Apps handles these concerns for you. In this guide, you’ll learn how to implement an Azure Logic App.

logic app

Deploying Database Instances In Azure


In this section, we’ll see the different types of deployment options for our database and then you’ll learn how you can use it to deploy your database.

Azure Resource Manager (ARM) Templates are the simplest way of deploying Infrastructure-as-a-code.

AZ-300 ARM TemplateARM lets you deploy several resources together in a single unit, and the deployments are idempotent in that the user declares the type of resource, what name to use, and which properties it should have.

Create An Azure Kubernetes Service

 

What Is Kubernetes? 

In organizations, multiple numbers of containers running on multiple hosts at a time so it is very hard to manage all the containers together we use Kubernetes. Kubernetes is an open-source platform for managing containerized workloads and services. Kubernetes takes care of scaling and failover for your application running on the container.

Kubernetes_Architecture


Azure Kubernetes Service (AKS)

Modern applications are increasingly built using containers, which are microservices packaged with their dependencies and configurations. Kubernetes is open-source software for deploying and managing those containers at scale. Furthermore, Azure Kubernetes Cluster lets you do just that for the microservices you run on the Azure cloud.

Therefore, in this Activity Guide, we will walk you through the steps to browse through the Azure Portal and how to setup AKS and manage your microservices without hassles on the cloud.

Azure Kubernetes ServiceAzure Kubernetes Service (AKS) is a managed Kubernetes service in which the master node is managed by Azure and end-users manages worker nodes. Users can use AKS to deploy, scale, and manage Docker containers and container-based applications across a cluster of container hosts. As a managed Kubernetes service AKS is free – you only pay for the worker nodes within your clusters, not for the masters. You can create an AKS cluster in the Azure portal, with the Azure CLI, or template-driven deployment options such as Resource Manager templates and Terraform.

Azure Kubernetes Service

Implementing Custom Role-Based Access Control (RBAC)

 Azure role-based access control (RBAC) is an identity and access management (IAM) system for Azure resources. Using Azure RBAC, you can segregate duties within your team and grant only the amount of access to users that they need to perform their jobs.

Therefore, here we will be defining and assigning a custom role-based access control to delegate permissions to start and stop Azure VMs.

How to Implement Azure Functions

 You must have a function app to host the execution of your functions. A function app lets you group functions as a logical unit for easier management, deployment, scaling, and sharing of resources. To sum up, you’ll learn how to create and group functions inside the function app.

Functions of Azure


Developing Solutions for Microsoft Azure :

Planning to emerge as a Microsoft [AZ-204] Certified Developer Associate but Azure Functions is becoming a roadblock? This blog post will provide you a full overview of the Azure Functions service provided by Azure. Azure Function is a serverless compute service that enables users to run event-triggered code without having to provision or manage infrastructure. Too hard to understand? Let’s try to break it down. Firstly, Serverless means that the allocation of your resources will happen based on the need at that time and that too automatically!

In simpler terms, Azure Functions runs an event-triggered code. This means that if a particular event or a set of events occurs, then it will run code. Further, it will manage all the resources dynamically while doing that.

You can also take advantage of over 250 connectors provided by Azure Functions with Azure Logic Apps. Additionally, the data processed by Azure Functions can persist in Azure data services like Azure SQL, Azure Storage, and Document DB.

Azure Functions_Integrations


Triggers

Azure provides an extensive number of Trigger templates for Azure Functions. Here are the names of some trigger templates:

  • HTTPTrigger– A HTTP Trigger makes it possible to execute code by an HTTP request.
  • TimerTrigger- This type of trigger proves to be beneficial if you want to perform a cleanup or other batch tasks as per a predefined schedule.
  • CosmosDBTrigger– It’s this trigger that processes Azure Cosmos DB documents when they are added or updated in the collections of a NoSQL database.
  • BlobTrigger– The trigger is primarily used for processing Azure Storage blobs when they are added to Containers. However, one may also use this function for image resizing.
  • QueueTrigger– This trigger takes care of your messages by responding to them as they arrive in the Azure Storage queue.
  • EventGridTrigger– EventGridTrigger, a trigger that responds to the events delivered to a subscription in Azure Event Grid, supports a subscription-based model for receiving events that comes with filtering—a wonderful solution for building event-based architectures.
  • EventHubTrigger– As the name suggests, the trigger responds to the events that are delivered to an Azure Event Hub. It is useful in scenarios such as user experience or workflow processing, application instrumentation, and internet-of-things (IoT).
  • ServiceBusQueueTrigger– This trigger listens to the message queues. By triggering this function, one can easily bind their code to other Azure Services or on-premise services.
  • ServiceBusTopicTrigger– A handy trigger that allows developers to publish as well as push messages to the topic using the Service Bus Topic Message.


Working Of Azure Functions

Serverless model

Azure Functions lets you can program and execute snippets of code in the Azure Cloud without asking the users to manger containers or web servers. Undoubtedly, servers are present but the users don’t need to put any effort into managing them.

Multiple Language Support

Developers can use a variety of languages like Python, C#, JavaScript, and PHP to implement events in Azure Functions. They can also make use of scripting languages like Bash, PowerShell, and Batch. Furthermore, an option to upload and trigger pre-compiled executables is present for Developers.

Every Function provides an option of seamless local development and Continuous Integration using GitHub, BitBucket, and Visual Studio Team Services.


Lightning-fast data access and processing

Azure Functions have made it easy to trigger code based on the data in other services in addition to accessing and operating on that data. Function bindings have enabled developers to interact with other data services and sources through their Function. Thus, allowing them not to worry about how the data flowing to and fro from a Function.

All thanks to Binding, tasks like fetching a Blob or adding a message to a queue has become as simple as reading a Blob from Function input variable or passing JSON to Function output variable.

Various triggering options

Triggering Azure Functions can be done in many ways such as, such as making changes in messages from Service Bus, HTTP triggers, Azure Storage Blob containers, Azure Queues, etc. As a result of the HTTP support, the Functions are able to react to the events that emit in virtually any SaaS (Software as a service) products supporting WebHooks. They’re easy to set up and need minimal configuration.


Benefits Of Using Azure Functions

Azure being one of the world’s biggest cloud providers gives huge advantages while using its services. One of those services is Azure Functions. Let’s take a look at the benefits of using Azure Functions.

Build Once, Deploy Anywher Azure Functions lets you deploy the same code to multiple targets, from pay-per-execution in the cloud to your Kubernetes cluster or IoT devices for edge computing.

Multi-Lingual Support – Azure Function supports significant languages like Java, C#, F#, Python, and more.

Pay as you go model – Azure provides a pay-as-you-go model which means you need to only pay for what you use. For Azure functions, the cost is based on the Number of Executions per month.

Swift Integration with Azure services – Azure Functions can effectively coordinate with the other Azure Services like Event Grids, Event Hubs, Azure Service Bus, Notification Hubs, etc.

Trigger-based executions – Azure Functions execute on the basis of the already configured triggers. It supports triggers like HTTP Triggers, Queue Trigger, Event Hub Trigger, and more. Since it is a trigger-based service, it runs on demand.