For a canary, v2 Pods are labeled version=canary while stable Pods…

Question

For a canary, v2 Pods are labeled version=canary while stable Pods use version=stable. How should the Service be labeled so both receive traffic?

Accepted Answer

Select a common app label shared by both Deployments, not only version=stable. — The Service is the club bouncer’s list—if it only says “stable,” canary never gets in. Put a shared app label on both Deployments and select that, while version labels keep the two replica sets distinct.

Answer

Select only version=canary and rely on DNS to reach stable Pods.

Answer

Omit selector entirely so the Service load-balances all namespace Pods.

Answer

Select the ReplicaSet hash label from the stable Deployment only.

For a canary, v2 Pods are labeled version=canary while stable Pods use version=stable. How should the Service be labeled so both receive traffic?

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