Book Image

Migrating Applications to the Cloud with Azure

By : Sjoukje Zaal, Amit Malik, Sander Rossel, Jason Marston, Mohamed Waly, Stefano Demiliani
Book Image

Migrating Applications to the Cloud with Azure

By: Sjoukje Zaal, Amit Malik, Sander Rossel, Jason Marston, Mohamed Waly, Stefano Demiliani

Overview of this book

Whether you are trying to re-architect a legacy app or build a cloud-ready app from scratch, using the Azure ecosystem with .NET and Java technologies helps you to strategize and plan your app modernization process effectively. With this book, you’ll learn how to modernize your applications by using Azure for containerization, DevOps, microservices, and serverless solutions to reduce development time and costs, while also making your applications robust, secure, and scalable. You will delve into improving application efficiency by using container services such as Azure Container Service, Azure Kubernetes Service (AKS), and more. Next, you will learn to modernize your application by implementing DevOps throughout your application development life cycle. You will then focus on increasing the scalability and performance of your overall application with microservices, before learning how to add extra functionality to your application with Azure serverless solutions. Finally, you’ll get up to speed with monitoring and troubleshooting techniques. By the end of this book, you will have learned how to use the Azure ecosystem to refactor, re-architect, and rebuild your web, mobile, and desktop applications.

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Table of Contents (22 chapters)
Preface
Preface
What this book covers
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1
Planning Application Modernization
Planning Application Modernization
2
Strategies for Application Modernization Using Azure
Strategies for Application Modernization Using Azure
Introducing application modernization
The cloud maturity model
Different migration strategies
Summary
Questions
Further reading
3
Building Your Application Migration Roadmap
Building Your Application Migration Roadmap
Building a migration roadmap
Migration tooling
Summary
Questions
Further reading
4
Implementing Containerization and DevOps in a Development Cycle
Implementing Containerization and DevOps in a Development Cycle
5
Getting Started with Docker and Kubernetes
Getting Started with Docker and Kubernetes
Technical requirements
Understanding the Docker ecosystem in Azure
Containerizing your applications
Kubernetes and Azure
Why Azure Kubernetes Service?
Summary
Questions
Further reading
6
Deploying Highly Scalable Apps with Kubernetes
Deploying Highly Scalable Apps with Kubernetes
Technical requirements
Azure makes Kubernetes easy
Deploying an AKS cluster
Understanding AKS networking modes
Deploying applications on AKS
Scaling applications on AKS
Scaling the AKS cluster
Upgrading applications on AKS
Upgrading an AKS cluster
Exposing applications outside the Kubernetes cluster
Monitoring and logging AKS using OMS
Running highly scalable AKS applications using ACI
Using Helm to deploy applications 
Summary
Questions
Further reading
7
Modernizing Apps and Infrastructure with DevOps
Modernizing Apps and Infrastructure with DevOps
Understanding Azure DevOps
Azure boards
Azure Repos
Azure pipelines
Azure test plans
Azure artifacts
Building a CI/CD pipeline with Azure DevOps
Using Azure pipelines with GitHub
Summary
Questions
Further reading
8
Building a Web and Microservices Architecture on Azure
Building a Web and Microservices Architecture on Azure
9
Designing Web Applications
Designing Web Applications
Technical requirements
Azure Web Apps
Web Apps for containers
Designing web apps for high availability, scalability, and performance
Designing and securing custom web APIs
Summary
Questions
Further reading
10
Scalability and Performance
Scalability and Performance
Technical requirements
Working with HPC virtual machines
Understanding Microsoft HPC Pack
Understanding Azure Batch
Summary
Questions
Further reading
11
Building Microservices with Service Fabric
Building Microservices with Service Fabric
Technical requirements
Understanding Azure Service Fabric
Creating an Azure Service Fabric cluster
Creating a Service Fabric .NET application
Creating a Service Fabric Java application
Summary
Questions
Further reading
12
Going Serverless and Deploying to the Cloud
Going Serverless and Deploying to the Cloud
13
Building Scalable Systems with Azure Functions
Building Scalable Systems with Azure Functions
Technical requirements
Understanding serverless computing
Creating an Azure function
Working with triggered functions
Creating Azure Functions in Visual Studio
Deploying Azure Functions
Timer triggered functions
Input and output bindings
Azure Functions proxies
Best practices
Summary
Questions
Further reading
14
Connecting to the Database
Connecting to the Database
Technical requirements
Working with Azure SQL
Connecting to SQL Server Management Studio
Connecting to Azure SQL from .NET Core
Connecting to Azure SQL from Java
Understanding Cosmos DB
Working with the MongoDB API
Working with the Redis cache database
Summary
Questions
Further reading
15
Managing and Deploying Your Code
Managing and Deploying Your Code
IDEs for Azure
Using Visual Studio with Azure
Using Eclipse with Azure
Visual Studio Code and Azure
IntelliJ and Azure
Summary
Questions
Further reading
16
Securing Your Azure Services
Securing Your Azure Services
Understanding Azure Key Vault
Securing Azure Storage
Securing Azure SQL databases
Securing your Azure VMs and network
Azure Security Center
Summary
Questions
Further reading
17
Planning for Security, Availability, and Monitoring
Planning for Security, Availability, and Monitoring
18
Diagnostics and Monitoring
Diagnostics and Monitoring
Azure Log Analytics
Azure Monitor
Application Insights
Azure Service Health
Azure Advisor
Azure Network Watcher
Summary
Questions
Further reading
19
Designing for High Availability and Disaster Recovery
Designing for High Availability and Disaster Recovery
Introducing high availability and disaster recovery
App Service
Azure SQL Database
Highly available access to apps using Azure Traffic Manager
Azure Backup
Azure Site Recovery
Summary
Questions
Further reading
20
Assessments
Assessments
Chapter 1: Strategies for Application Modernization Using Azure
Chapter 2: Building Your Application Migration Roadmap
Chapter 3: Getting Started with Docker and Kubernetes
Chapter 4: Deploying Highly Scalable Apps with Kubernetes
Chapter 5: Modernizing Apps and Infrastructure with DevOps
Chapter 6: Designing Web Applications
Chapter 7: Scalability and Performance
Chapter 8: Building Microservices with Service Fabric
Chapter 9: Building Scalable Systems with Azure Functions
Chapter 10: Connecting to the Database
Chapter 11: Managing and Deploying Your Code
Chapter 12: Securing Your Azure Services
Chapter 13: Diagnostics and Monitoring
Chapter 14: Designing for High Availability and Disaster Recovery
21
Other Books You May Enjoy
Other Books You May Enjoy
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Questions

Answer the following questions to test your knowledge on the information that was provided in this chapter. You can find the answers in the Assessments section at the end of this book:

  1. Which language cannot be used to write Azure Functions in the v2 runtime?
    1. Python
    2. C#
    3. Java
    4. F#
    5. JavaScript
  2. Which of the following cannot be used to trigger Azure Functions?
    1. Blob Storage
    2. Cosmos DB
    3. External files
    4. Timer
    5. Microsoft Graph Excel tables
    6. Service Bus
    7. Table storage
  3. What isn't possible using proxies?
    1. Limiting allowed HTTP methods
    2. Leaving the backend URL blank
    3. Deploying using Azure DevOps
    4. Using JavaScript for conditional routing
    5. Entering a backend URL from outside your Azure environment
    6. Returning HTML
    7. Overriding  headers
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