What this snippet does
An anonymous volume on the nested path keeps the image's node_modules visible under a bind mount.
Expected output
server ready on :3000
Why practise typing this
Typing volumes & storage code builds muscle memory for the symbols and indentation Docker uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More Docker practice
- Persisting database dataVolumes & Storage · beginner
- Live-reloading sourceVolumes & Storage · beginner
- Mount hides image contentsVolumes & Storage · intermediate
- VOLUME freezes later writesVolumes & Storage · intermediate
- In-memory scratch spaceVolumes & Storage · advanced
- Mounting config read-onlyVolumes & Storage · intermediate