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Answer: Use Traffic Director with a sidecar proxy to connect the application to the service., Configure the legacy service's firewall to allow health checks originating from the sidecar proxy.
To ensure a resilient connection between your application and the legacy REST service across different regions with minimal setup and the ability to perform health checks on a separate port, the best approach involves using Traffic Director with a sidecar proxy. This setup (Option A) efficiently manages load balancing and health checks. Additionally, configuring the legacy service's firewall to allow health checks from the sidecar proxy (Option C) is necessary for the health checks to function properly. Options B, D, and E are either less efficient or unnecessary for the described scenario.
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Your team has developed an application running on a Google Kubernetes Engine (GKE) cluster. You need to connect this application to a legacy REST service deployed across two GKE clusters in different regions. The connection should be resilient, require minimal steps, and support probe-based health checks on the legacy service using a separate port. What are two recommended approaches to configure this connection?
A
Use Traffic Director with a sidecar proxy to connect the application to the service.
B
Set up a proxyless Traffic Director configuration for the application.
C
Configure the legacy service's firewall to allow health checks originating from the sidecar proxy.
D
Configure the legacy service's firewall to allow health checks originating from the application.
E
Configure the legacy service's firewall to allow health checks originating from the Traffic Director control plane.
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