You need a headless service that supports direct pod connections and stable DNS names for pods managed by a StatefulSet. Which configuration is correct?

hard📝 Workflow Q8 of 15

Kubernetes - Services

ACreate a Service without selectors and manually manage endpoints

BCreate a Service with a cluster IP and set <code>publishNotReadyAddresses: true</code>

CUse a LoadBalancer Service with externalIPs matching pod IPs

DCreate a headless Service with <code>clusterIP: None</code> and use the StatefulSet's <code>serviceName</code> field

Step-by-Step Solution

Solution:

Step 1: Understand StatefulSet DNS
StatefulSets rely on a headless Service to provide stable network IDs for pods.
Step 2: Headless Service setup
Setting clusterIP: None creates a headless Service that returns pod IPs directly.
Step 3: Linking StatefulSet and Service
The StatefulSet's serviceName must reference the headless Service to enable stable DNS names.
Final Answer:
Create a headless Service with clusterIP None and use StatefulSet's serviceName field -> Option D
Quick Check:
Verify clusterIP None and StatefulSet serviceName match [OK]

Quick Trick: StatefulSet needs headless Service with matching serviceName [OK]

Common Mistakes:

Using cluster IP Service for StatefulSet DNS
Not setting serviceName in StatefulSet spec
Manually managing endpoints instead of selectors

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More Kubernetes Quizzes

You need a headless service that supports direct pod connections and stable DNS names for pods managed by a StatefulSet. Which configuration is correct?

Step 1: Understand StatefulSet DNS

Step 2: Headless Service setup

Step 3: Linking StatefulSet and Service

Final Answer:

Quick Check:

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