dk-tech

Friday, June 9, 2023

How to start, restart, stop or delete multiple Azure VMs using Azure Powershell and Azure CLI

To start, restart, stop, or delete multiple Azure virtual machines (VMs), you can use Azure PowerShell or the Azure CLI. Here are the steps using both methods:

Using Azure PowerShell:

Install Azure PowerShell: If you haven't already, install the Azure PowerShell module on your local machine. You can follow the instructions provided by Microsoft to install Azure PowerShell: https://docs.microsoft.com/en-us/powershell/azure/new-azureps-module-az?view=azps-12.0.0
Connect to your Azure account: Open PowerShell and run the following command to sign in to your Azure account:
```
powershell
Connect-AzAccount
```
Select the Azure subscription: If you have multiple Azure subscriptions, use the following command to select the appropriate subscription:
```
powershell
Set-AzContext -SubscriptionId <SubscriptionId>
```

Start, restart, stop, or delete VMs: Use the appropriate commands to manage your VMs. For example:

To start VMs:

powershell
Start-AzVM -ResourceGroupName <ResourceGroupName> -Name <VM1Name>, <VM2Name>, ...

To restart VMs:

powershell
Restart-AzVM -ResourceGroupName <ResourceGroupName> -Name <VM1Name>, <VM2Name>, ...

To stop (deallocate) VMs:

powershell
Stop-AzVM -ResourceGroupName <ResourceGroupName> -Name <VM1Name>, <VM2Name>, ...

To delete VMs:

powershell
Remove-AzVM -ResourceGroupName <ResourceGroupName> -Name <VM1Name>, <VM2Name>, ...

Using Azure CLI:

Install Azure CLI: If you haven't already, install the Azure CLI on your local machine. Follow the instructions provided by Microsoft to install Azure CLI: https://docs.microsoft.com/en-us/cli/azure/install-azure-cli
Sign in to your Azure account: Open the command prompt or terminal and run the following command to sign in to your Azure account:
```
bash
az login
```
Select the Azure subscription: If you have multiple Azure subscriptions, use the following command to select the appropriate subscription:
```
bash
az account set --subscription <SubscriptionId>
```

Start, restart, stop, or delete VMs: Use the appropriate commands to manage your VMs. For example:

To start VMs:

bash
az vm start --resource-group <ResourceGroupName> --name <VM1Name> <VM2Name> ...

To restart VMs:

bash
az vm restart --resource-group <ResourceGroupName> --name <VM1Name> <VM2Name> ...

To stop (deallocate) VMs:

bash
az vm stop --resource-group <ResourceGroupName> --name <VM1Name> <VM2Name> ...

To delete VMs:

bash
az vm delete --resource-group <ResourceGroupName> --name <VM1Name> <VM2Name> ...

Remember to replace <ResourceGroupName>, <VM1Name>, <VM2Name>, and <SubscriptionId> with the actual names and IDs relevant to your Azure environment.

Both Azure PowerShell and Azure CLI provide powerful automation capabilities, so you can script or loop through a list of VMs to perform bulk operations efficiently.

Azure Landing Zone

Azure Landing Zone is a concept and set of guidelines provided by Microsoft Azure to help organizations establish a secure, well-architected, and scalable foundation in Azure. It provides a framework and best practices for deploying cloud workloads with standardized design patterns, governance policies, and security controls.

The goal of an Azure Landing Zone is to provide a consistent and repeatable approach to set up and manage Azure environments that align with an organization's requirements and compliance standards. It offers a structured approach for deploying landing zones, which are foundational environments for hosting workloads in Azure.

Key components and considerations in an Azure Landing Zone include:

Subscription Structure: The Azure Landing Zone defines a subscription structure that aligns with the organization's organizational hierarchy, security boundaries, and billing requirements. It may include different types of subscriptions, such as management subscriptions, shared services subscriptions, and workload-specific subscriptions.
Networking: The networking aspect of an Azure Landing Zone focuses on designing a secure and well-connected network infrastructure. This includes defining virtual networks (VNets), subnets, network security groups (NSGs), and network connectivity options like virtual private networks (VPNs) or Azure ExpressRoute.
Identity and Access Management: Azure Landing Zone incorporates identity and access management best practices to ensure proper authentication, authorization, and governance. This includes setting up Azure Active Directory (AAD), implementing role-based access control (RBAC) policies, and enabling multi-factor authentication (MFA) for secure access.
Security and Compliance: Azure Landing Zone provides guidance on implementing security controls, monitoring solutions, and compliance frameworks to meet regulatory requirements. It involves configuring Azure Security Center, implementing Azure Policy for governance, and enabling Azure Sentinel for centralized security monitoring and incident response.
Resource Hierarchy and Tagging: Azure Landing Zone defines a standardized resource hierarchy and tagging strategy to organize and manage resources effectively. It helps in tracking costs, applying policies, and managing resource lifecycles efficiently.
Landing Zone Deployment: Azure provides various tools and services, such as Azure Blueprints, Azure Resource Manager (ARM) templates, and Infrastructure as Code (IaC) practices, to automate the deployment and management of Azure Landing Zones. These tools allow organizations to define and deploy a Landing Zone architecture consistently across different environments.

By following Azure Landing Zone guidelines, organizations can establish a strong foundation for their Azure environments. It enables them to deploy workloads securely, maintain compliance, streamline governance, and improve operational efficiency in the cloud.

Angular 14 features

Angular cutoff in September 2021, Angular 14 has not been released. However, I can provide you with an overview of the new features introduced in Angular 12 and Angular 13, which were the latest versions available at that time. Please note that the features mentioned here may not be applicable to Angular 14 or any future versions beyond my knowledge cutoff date.

Angular 12 introduced the following key features and improvements:

Angular Language Service Improvements: The Angular Language Service received several enhancements, including improved performance, faster completions, and better support for template type checking.
Webpack 5 Support: Angular 12 added support for Webpack 5, which brings performance improvements, enhanced bundle analysis, and advanced tree-shaking capabilities.
ESLint Support: The Angular CLI added support for ESLint as an alternative to TSLint for linting and code quality checks.
Automatic Font Inlining: Angular 12 introduced automatic font inlining, allowing fonts to be automatically included in CSS files to improve performance.
Improved Hot Module Replacement (HMR): The HMR feature, used during development for faster code updates, was enhanced to provide a smoother development experience.
Updated TypeScript Version: Angular 12 updated its default TypeScript version to TypeScript 4.2.

Angular 13, which was released after Angular 12, focused on bug fixes, performance improvements, and general maintenance rather than introducing significant new features.

It's important to stay updated with the official Angular documentation and releases to get the most accurate and up-to-date information on the new features and improvements introduced in Angular 14 or any future versions beyond my knowledge cutoff.

Migrating a .NET application to Azure

Migrating a .NET application to Azure involves several steps to ensure a smooth transition. Here's a general outline of the migration process:

Assess your application: Start by evaluating your existing .NET application to understand its architecture, dependencies, and resource requirements. Identify any potential challenges or modifications needed for the migration.
Azure Account Setup: Create an Azure account if you don't have one already. Set up subscriptions, resource groups, and other necessary configurations.
Select Azure Services: Determine the Azure services that align with your application requirements. This may include Azure App Service, Azure Virtual Machines, Azure Container Instances, Azure Kubernetes Service (AKS), Azure Functions, Azure SQL Database, Azure Storage, and more. Choose the services that best fit your application's needs.
Lift-and-Shift or Re-architecture: Decide whether you want to perform a lift-and-shift migration, where you move your application to Azure with minimal changes, or if you prefer to re-architect your application to take advantage of Azure-specific features and capabilities. The latter option may provide greater scalability, resilience, and cost optimization.
Create Azure Resources: Set up the necessary Azure resources such as virtual machines, databases, storage accounts, networking configurations, and any other services required by your application. Ensure proper configuration, security, and connectivity.
Migrate Data: If your application relies on databases or data storage, migrate your data to Azure. This can involve transferring databases, files, or other relevant data to Azure SQL Database, Azure Storage, or other appropriate Azure services. Ensure data integrity and compatibility during the migration process.
Code Migration: Migrate your .NET application code to Azure. This may involve setting up source control, deploying the application to Azure App Service, configuring containers, or deploying to Azure Functions, depending on your chosen deployment model.
Network Configuration: Set up networking and connectivity between your application and Azure services. This can include configuring virtual networks, subnets, security groups, and establishing connections between on-premises resources and Azure using VPN or ExpressRoute.
Application Testing: Perform thorough testing of your migrated application to ensure it functions correctly in the Azure environment. Test functionality, performance, scalability, and any integration points.
Monitoring and Management: Configure monitoring and management tools such as Azure Monitor, Azure Application Insights, or third-party monitoring solutions to gain insights into your application's performance, health, and usage patterns.
Security and Compliance: Implement necessary security measures, such as identity and access management, encryption, firewalls, and compliance requirements based on your application's needs and industry regulations.
Go Live and Optimization: Once you have completed testing and verification, plan and execute the cutover to the Azure environment. Monitor and optimize your application for performance, cost-efficiency, and scalability in Azure.

Remember that the specific steps and considerations may vary based on the complexity of your .NET application and the chosen Azure services. It's important to thoroughly plan, test, and monitor throughout the migration process to ensure a successful transition to Azure.