Showing posts with label Azure. Show all posts
Showing posts with label Azure. Show all posts

Thursday, May 18, 2023

How to create virtual machines in azure ? or What are different methods available ?

 To create virtual machines (VMs) in Azure, there are several methods available. Here are the different approaches you can take:

  1. Azure Portal: The Azure Portal provides a web-based graphical user interface (GUI) for managing Azure resources, including VMs. You can navigate to the Azure Portal, select the desired subscription and resource group, and use the "Create a resource" button to create a VM. The portal offers a step-by-step wizard where you can specify VM configurations, such as image, size, networking, and storage options.

  2. Azure CLI: The Azure Command-Line Interface (CLI) is a cross-platform command-line tool that allows you to manage Azure resources from the command line. You can use the Azure CLI to create VMs by running commands that specify the desired VM properties, such as the image, size, resource group, and networking configurations.

  3. Azure PowerShell: Azure PowerShell is a scripting environment that enables you to automate Azure management tasks using PowerShell scripts. With Azure PowerShell, you can create VMs by writing PowerShell scripts that define the VM properties, resource group, networking, and other configurations.

  4. Azure Resource Manager (ARM) Templates: ARM templates are JSON files that describe the desired state of your Azure infrastructure. You can define the VM properties, networking, storage, and other configurations in an ARM template and deploy it to create VMs in a consistent and repeatable manner. ARM templates can be deployed using the Azure Portal, Azure CLI, or Azure PowerShell.

  5. Azure DevOps: Azure DevOps provides a set of services for CI/CD (Continuous Integration/Continuous Deployment) pipelines and automating infrastructure deployment. Using Azure DevOps pipelines, you can define YAML or visual pipeline configurations that include steps to create VMs as part of your infrastructure deployment process.

These methods provide different levels of automation, flexibility, and programmability to create VMs in Azure. You can choose the approach that best suits your requirements and preferences. It's worth noting that Azure SDKs for various programming languages are also available if you prefer to programmatically create VMs using your preferred programming language.

Monday, May 15, 2023

How to create an AKS cluster in Azure?

 

To create an Azure Kubernetes Service (AKS) cluster, you can use either the Azure portal, Azure CLI, or Azure PowerShell. Here are the steps for each method:

  1. Azure Portal:
    • Sign in to the Azure portal (https://portal.azure.com).
    • Click on "Create a resource" in the left navigation pane.
    • Search for "Azure Kubernetes Service" and select it from the search results.
    • Click on "Create" to start the AKS cluster creation wizard.
    • Provide the necessary information, such as subscription, resource group, cluster name, region, and Kubernetes version.
    • Configure the desired node size, node count, and authentication method.
    • Review the settings and click on "Review + Create" to validate the configuration.
    • Finally, click on "Create" to create the AKS cluster. The deployment may take several minutes to complete.
  2. Azure CLI:
    • Open the Azure CLI (command-line interface) on your local machine or use the Azure Cloud Shell (https://shell.azure.com).
    • Run the following command to create an AKS cluster:

az aks create --resource-group <resource-group-name> --name <cluster-name> --node-count <node-count> --node-vm-size <node-vm-size> --location <region>

Replace <resource-group-name> with the name of the resource group where the cluster should be created, <cluster-name> with the desired name for the cluster, <node-count> with the number of nodes in the cluster, <node-vm-size> with the VM size for the nodes, and <region> with the desired region for the cluster.

    • Optionally, you can add more parameters to the command to configure advanced settings like networking, authentication, and monitoring.
  1. Azure PowerShell:
    • Open the Azure PowerShell module on your local machine or use the Azure Cloud Shell (https://shell.azure.com).
    • Run the following command to create an AKS cluster:

New-AzAksCluster -ResourceGroupName <resource-group-name> -Name <cluster-name> -NodeCount <node-count> -NodeVmSize <node-vm-size> -Location <region>

Replace <resource-group-name> with the name of the resource group, <cluster-name> with the desired name for the cluster, <node-count> with the number of nodes in the cluster, <node-vm-size> with the VM size for the nodes, and <region> with the desired region.

    • You can also provide additional parameters to the command to configure networking, authentication, and other advanced options.

After executing the appropriate command, the AKS cluster creation process will start, and it may take several minutes to complete. Once the cluster is created, you can access and manage it using the Azure portal, Azure CLI, Azure PowerShell, or the Kubernetes command-line tool (kubectl).

Sunday, May 14, 2023

Batch Processing and Retry Mechanism for CSV Files in Azure

 You can consider using two Azure services for your scenario of downloading multiple CSV files, parsing them, transforming the data, and tracking the success or failure of processing: 

#1. Storage Queue with Azure Functions:

  • Azure Blob Storage can be used to store the CSV files, and a Storage Queue can manage the processing workflow.
  • Set up an Azure Function with a queue trigger to trigger the function for processing a CSV file whenever a new message arrives in the queue.
  • Implement the parsing, transformation, and writing logic for each file within the function.
  • Track the success or failure of processing by writing the status or any error information to another storage location, such as a separate blob container or a database.
  • To enable retries, configure the Storage Queue with a visibility timeout. Messages that are not deleted after processing become visible again after a specified duration, allowing for automatic retries.

#2. Azure Batch with Spot VMs:

  • Azure Batch, a managed service, enables you to run large-scale parallel and batch computing jobs.
  • Create an Azure Batch job that defines the tasks for downloading, parsing, transforming, and writing the CSV files.
  • Utilize Azure Spot VMs, which are low-priority virtual machines available at a significantly reduced price, to handle large workloads cost-effectively.
  • Azure Batch provides a mechanism to track task execution and the overall job status. Retrieve information on the success or failure of each task and programmatically handle retries if necessary.

The choice between these approaches depends on factors such as the complexity of the processing logic, workload scale, and specific requirements of your use case.


Friday, May 5, 2023

Sitecore on Azure: Benefits, Implementation, and Best Practices


Sitecore on Azure: Benefits, Implementation, and Best Practices

Sitecore is a popular content management system (CMS) used by businesses to manage their digital content, personalization, and marketing campaigns. With the growing demand for cloud-based solutions, many businesses are looking to deploy Sitecore on Azure. In this article, we'll discuss the benefits of running Sitecore on Azure, how to implement it, and some best practices to follow.

Benefits of Running Sitecore on Azure:

  1. Scalability: Azure provides businesses with the ability to scale their Sitecore environment on-demand, based on traffic and usage patterns. This ensures that businesses can deliver a seamless digital experience to their customers, without worrying about infrastructure limitations.

  2. High Availability: Azure's global data centers and built-in redundancy features ensure that Sitecore is always available to users, even during maintenance or downtime.

  3. Security: Azure provides businesses with enterprise-grade security features, such as threat detection and prevention, identity and access management, and compliance certifications.

  4. Cost Savings: Azure's pay-as-you-go pricing model and cost-saving features such as reserved instances, spot instances, and auto-scaling, help businesses save on their infrastructure costs.

Implementation of Sitecore on Azure:

  1. Choose the Right Azure Service: Sitecore can be deployed on various Azure services, such as Azure App Service, Azure Kubernetes Service (AKS), or Azure Virtual Machines (VMs). Choose the right service based on your business needs and requirements.

  2. Follow Sitecore's Best Practices: Sitecore provides a set of best practices for deploying and configuring Sitecore on Azure. Follow these best practices to ensure a smooth deployment and optimal performance.

  3. Automate Deployment: Use Azure DevOps or other automation tools to automate the deployment of Sitecore on Azure. This ensures consistency, reduces errors, and speeds up the deployment process.

Best Practices for Running Sitecore on Azure:

  1. Use Azure Blob Storage for Media: Store your Sitecore media assets in Azure Blob Storage instead of the Sitecore database. This improves performance and reduces the size of your Sitecore database.

  2. Implement Azure CDN: Use Azure Content Delivery Network (CDN) to improve the performance and scalability of your Sitecore environment. This reduces latency, improves user experience, and reduces bandwidth costs.

  3. Monitor Performance: Use Azure Monitor or other monitoring tools to monitor the performance and health of your Sitecore environment. This helps identify issues and proactively address them.

In conclusion, running Sitecore on Azure provides businesses with numerous benefits, including scalability, high availability, security, and cost savings. Follow the implementation and best practices guidelines to ensure a smooth deployment and optimal performance.

Thursday, May 4, 2023

How to Include @search.score in Azure Cognitive Search Suggest Response

 You can return the search score (@search.score) in the response along with the suggested search terms using Azure Cognitive Search Suggest API. Here's how you can do it:

  1. In the suggest query, add "@search.score" to the "select" parameter to include the search score in the response.

For example:

https://[service name].search.windows.net/indexes/[index name]/docs/suggest?api-version=[api-version]&suggesterName=[suggester name]&search=[user input]&$select=searchText,@search.score

  1. In the Suggester definition, add "@search.score" to the "sourceFields" parameter to enable scoring of the suggested search terms.

For example:

{ "name": "[suggester name]", "searchMode": "analyzingInfixMatching", "sourceFields": ["[field name 1]", "[field name 2]", "@search.score"] }


How to Create a Static Website in Azure Accessible Only on Company VPN with Custom Domain

 It is possible to have a static website with a custom domain that is fully locked down to just a company's VPN in Azure.

Here are the steps you can follow:

  1. Create a storage account and enable static website hosting.

  2. Upload your static website content to the $web container in the storage account.

  3. Create a private endpoint for the storage account.

  4. Configure the private endpoint to allow traffic only from the company's VPN.

  5. Create a custom domain and add a CNAME record pointing to the Azure CDN endpoint.

  6. Create a CDN profile and a CDN endpoint.

  7. Configure the CDN endpoint to use the storage account as the origin.

  8. Configure the CDN endpoint to use HTTPS and a custom domain.

  9. Lock down the CDN endpoint to allow traffic only from the company's VPN.

By following these steps, you can have a static website with a custom domain that is fully locked down to just a company's VPN in Azure. The CDN endpoint will serve the static website content from the storage account, and access to the CDN endpoint will be restricted to only the company's VPN.

Tuesday, May 2, 2023

How do you create a function app?

 To create a function app in Azure, follow these steps:

  1. Sign in to the Azure portal.
  2. Click on the Create a Resource button.
  3. Search for "Function App" and select it from the list of results.
  4. Click on the Create button to begin the creation process.
  5. Fill in the required information, including the subscription, resource group, and function app name.
  6. Choose the operating system, either Windows or Linux, and the hosting plan, either Consumption or App Service Plan.
  7. Choose the runtime stack and version, such as Node.js, Python, .NET Core, or Java.
  8. Choose the region where you want to deploy the function app.
  9. Click on the Create button to create the function app.

ASP.NET Core

 Certainly! Here are 10 advanced .NET Core interview questions covering various topics: 1. **ASP.NET Core Middleware Pipeline**: Explain the...