Answer
Logs fill the writable layer, degrade performance, and are lost when containers are deleted.
Quick Answer
Storing logs in the container filesystem fills the container's writable layer — you can't easily ship them, rotate them, or query them from outside. Logging to stdout/stderr lets Docker capture them via the log driver and forward to systems like CloudWatch, ELK, or Splunk. Containers should be observable, not self-archiving.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ