Backend Development
C++
Cloud Modernization with C++: Migrating Legacy Applications to the Cloud
Cloud Modernization with C++: Migrating Legacy Applications to the Cloud
Jun 01, 2024 am 09:21 AM
The best way to move legacy C++ applications to the cloud: Re-platforming: Migrate application code to a cloud-native platform such as Kubernetes, leveraging cloud services. Cloudization: Deploy applications on cloud platforms and utilize cloud services without code refactoring.
Cloud Modernization with C++: Migrating Legacy Applications to the Cloud
As enterprises accelerate their digital transformation journeys, cloud modernization has become a top priority. For legacy C++-based applications, migrating them to the cloud can bring significant benefits, such as scalability, agility, and cost optimization.
Migration Methods
There are two common methods for migrating C++ applications to the cloud:
- Replatforming: Move the application Code is migrated to cloud-native platforms such as Kubernetes and leverages cloud services.
- Cloudification: Deploy applications on cloud platforms and utilize cloud services without code refactoring.
Which method you choose depends on the complexity of your application and your business needs.
Practical case
Application: Large bank mobile application, C++ backend
Migration method: Re-platforming
Containerize applications with Kubernetes and leverage Azure Functions for serverless computing.
Step One: Containerize the backend code
// 創(chuàng)建一個(gè) Dockerfile FROM ubuntu:18.04 RUN apt-get update && apt-get install -y make g++ WORKDIR /app COPY . /app CMD make && ./app
Step Two: Deploy to Kubernetes
apiVersion: v1
kind: Pod
metadata:
name: my-app
labels:
app: my-app
spec:
containers:
- name: my-app
image: my-app:latest
env:
- name: API_URL
value: https://my-api.comStep Three: Leverage Serverless Computing
// Azure Functions script
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using System.Threading.Tasks;
namespace MyFunctions;
public static class MyFunction
{
[FunctionName("GetAccountBalance")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", Route = "accounts/{accountId}")] HttpRequest req,
string accountId,
ILogger log)
{
// 從數(shù)據(jù)庫(kù)獲取賬戶余額
return new OkObjectResult(balance);
}
}By following these steps, banks can modernize their mobile application’s C++ backend to the cloud, taking advantage of the benefits of cloud technology.
Benefits
- Scalability: The cloud platform provides on-demand scaling to meet changing workloads.
- Agility: Cloud services make rapid deployment and updates possible, thereby increasing development efficiency.
- Cost Optimization: The pay-as-you-go model reduces infrastructure costs and optimizes based on usage.
- Resilience: The cloud platform provides a fault-tolerant mechanism to ensure that applications maintain high availability in the face of interruptions.
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