What this snippet does
The :ro flag stops the container from modifying mounted host files.
Expected output
configuration file /etc/nginx/nginx.conf test is successful
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
- Protecting node_modulesVolumes & Storage · intermediate
- VOLUME freezes later writesVolumes & Storage · intermediate
- In-memory scratch spaceVolumes & Storage · advanced