Explanation:
The correct approach for performing blue/green deployments in GKE using Spinnaker with Kubernetes Provider V2 is to use a Kubernetes deployment and utilize Spinnaker for each new version of the application. Here’s why:
Kubernetes Deployments: Deployments are the standard Kubernetes resource for managing stateless applications. They provide declarative updates for Pods and ReplicaSets, making them ideal for blue/green deployments. Deployments allow for controlled rollouts and rollbacks, which are essential for minimizing downtime.
Spinnaker’s Role: Spinnaker excels at orchestrating complex deployment strategies, including blue/green. It can manage the creation and switching of Kubernetes Deployments, allowing you to control traffic flow between application versions.
Replica Sets vs. Deployments: While ReplicaSets manage Pod replicas, they lack the high-level deployment strategies that Deployments offer. Deployments manage replica sets.
Services: You would have one service that points to the deployment. Spinnaker changes the deployment object to change which pods the service points to. You would not create a new service for each deployment.
Therefore, using Kubernetes Deployments and Spinnaker’s orchestration capabilities is the most effective way to implement blue/green deployments in GKE.
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Your application is running on Google Kubernetes Engine (GKE), and you aim to utilize Spinnaker with the Kubernetes Provider V2 for blue/green deployments to manage traffic between different versions of your application. What is the recommended approach? (Select One)
A
Use a Kubernetes Replica Set and then use Spinnaker to create a new service for each new version deployed
B
Use a Kubernetes Replica Set and then use Spinnaker to update the replica set for each new version deployed
C
Use a Kubernetes deployment and use Spinnaker for each new version of the application
D
Use a Kubernetes deployment object and use Spinnaker for each new version of the application