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Zorluk: OrtaDeployment Strategies

A developer has updated an API hosted on Amazon API Gateway. To minimize the risk of the new version affecting users, the developer wants to test the update by routing 5%5\% of the incoming API calls to the new version, while the remaining 95%95\% of the traffic goes to the current version. The developer wants to monitor the performance of the new version using CloudWatch and easily promote it to full production once verified. Which approach meets these requirements with the least operational complexity?

  1. Configure a canary release on the existing API Gateway stage, set the canary traffic percentage to 5%5\%, and promote the canary after verification.Cevap
  2. B
    Deploy the new API version to a new stage, and configure an AWS Lambda function with alias routing to split the traffic between the stages.
  3. C
    Deploy the new API version to a new stage, and configure Amazon Route 53 weighted routing to distribute the traffic between the two stage endpoints.
  4. D
    Create a second API Gateway API, deploy it, and place both APIs behind an Application Load Balancer with weighted target groups.

Cevap

Configure a canary release on the existing API Gateway stage, set the canary traffic percentage to 5%5\%, and promote the canary after verification.
The correct answer is to configure a canary release on the existing API Gateway stage. When a canary release is enabled, API Gateway automatically routes a specified percentage of API traffic (in this case, 5%5\%) to the new deployment. The developer can monitor the performance of this canary using Amazon CloudWatch metrics and easily promote it to the production release once verified, which requires the least operational effort.

Adım Adım Çözüm

1
Identify the deployment target service and the primary goal.
The target is Amazon API Gateway, and the goal is to shift 5%5\% of traffic to a new version of the API and monitor performance.
Understanding the service context helps isolate native features from external workarounds.
2
Evaluate the native deployment features of Amazon API Gateway.
Amazon API Gateway natively supports canary releases directly on an existing deployment stage.
This features allows splitting traffic at the HTTP request level and integrating directly with CloudWatch for testing.
3
Analyze and eliminate alternative architectures based on complexity.
Route 53 weighted routing requires custom domains; Lambda alias routing operates at the backend layer rather than the API stage layer; ALB target groups are structurally redundant and complex.
This confirms that API Gateway canary release is the path of least operational complexity.

Anahtar Kavram

API Gateway Canary Deployments
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Deployment Strategies

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