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Productivity Passport
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Containers and Config Management

Unscored tasks with hints and instant feedback. Practice results never become credentials.

Short lesson

Pipelines in one minute · 8 min

Combine small tools: grep filters lines, awk/cut pick fields, sort | uniq -c counts, xargs turns lines into arguments. Read logs with journalctl -u UNIT.

L1Run a containerterminal

Run an nginx container in the background named web, publishing host port 8080 to container port 80.

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L3Bring up a stackterminal

~/stack/compose.yaml defines an app and a database. Start the stack in the background and save `docker ps` output to ~/stack/ps.txt.

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L5Knowledge checkmcq

What makes a configuration-management task idempotent?

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