You want to collect CPU and memory usage metrics for multiple containers and save them to a file every minute. Which approach is best?

hard📝 Application Q8 of 15

Docker - Logging and Monitoring

AUse <code>docker logs</code> to get resource usage logs

BRun <code>docker stats</code> once and redirect output to a file

Use a script that runs <code>docker stats --no-stream</code> for each container every minute and appends output to a file

DManually check <code>docker inspect</code> for each container every minute

Step-by-Step Solution

Solution:

Step 1: Identify requirement for periodic snapshots
Collecting metrics every minute means repeated snapshots, not continuous streaming.
Step 2: Evaluate options
Running docker stats --no-stream repeatedly captures snapshots; redirecting once streams continuous data; logs and inspect do not provide resource metrics.
Final Answer:
Use a script that runs docker stats --no-stream for each container every minute and appends output to a file -> Option C
Quick Check:
Periodic metrics collection = repeated --no-stream snapshots [OK]

Quick Trick: Script repeated --no-stream calls for periodic metrics [OK]

Common Mistakes:

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