Docker - Security
What will be the output of this command?
docker run --user 1500 alpine id -u
What will be the output of this command?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand --user flag
The --user flag runs the container process as the specified UID.Step 2: Running id -u
The command prints the user ID of the running process inside the container.Final Answer:
1500 -> Option BQuick Check:
--user sets UID for container process [OK]
Quick Trick: --user sets UID, id -u prints it [OK]
Common Mistakes:
- Assuming default root user output
- Expecting username instead of UID
Master "Security" in Docker
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Docker Quizzes