Exam
CKS
CKS · Minimize Microservice Vulnerabilities
Lock Down ServiceAccount Token Automounting
First, modify the existing ServiceAccount stats-monitor-sa in the namespace monitoring to turn off automounting of API credentials.
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The task
Context
A security audit has identified a Deployment improperly handling service account tokens, which could lead to security vulnerabilities.
Task
First, modify the existing ServiceAccount stats-monitor-sa in the namespace monitoring to turn off automounting of API credentials.
Next, modify the existing Deployment stats-monitor in the namespace monitoring to inject a ServiceAccount token mounted at /var/run/secrets/kubernetes.io/serviceaccount/token.
Use a Projected Volume named token to inject the ServiceAccount token and ensure that it is mounted read-only.
What this tests
Apply Pod Security Standards, securityContext, and mTLS, and protect secrets at rest. On the CKS exam, Minimize Microservice Vulnerabilities tasks are graded purely on what you build in the cluster - not multiple choice - so the only way to get faster is to do them on a real cluster against a clock.
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