Kubernetes - Health Checks and Probes
You want to create a liveness probe that runs a custom script inside the container every 15 seconds, starting 20 seconds after container start. Which configuration is correct?
You want to create a liveness probe that runs a custom script inside the container every 15 seconds, starting 20 seconds after container start. Which configuration is correct?
hard📝 Workflow Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify exec command syntax for script
Exec command must be an array of strings to run the script with shell.Step 2: Match timing requirements
initialDelaySeconds: 20 and periodSeconds: 15 match the timing described.Step 3: Exclude other options
livenessProbe: exec: command: "/usr/local/bin/check.sh" initialDelaySeconds: 15 periodSeconds: 20 uses string instead of array; the other options use httpGet and tcpSocket, not exec.Final Answer:
livenessProbe: exec: command: ["/bin/sh", "-c", "/usr/local/bin/check.sh"] initialDelaySeconds: 20 periodSeconds: 15 -> Option BQuick Check:
Exec with array command and correct delays [OK]
Quick Trick: Use array for exec command and set delays correctly [OK]
Common Mistakes:
- Using string instead of array for exec command
- Mixing up initialDelaySeconds and periodSeconds
- Using wrong probe type for script execution
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