What this snippet does
Joining the target's namespaces from a tools image debugs distroless containers safely.
Expected output
LISTEN 0 511 *:3000 *:*
Why practise typing this
Typing debugging & ops 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
- Inspecting a failed layerDebugging & Ops · intermediate
- Reading a container's exit codeDebugging & Ops · intermediate
- Memory limit kills the processDebugging & Ops · advanced
- Seeing filesystem changesDebugging & Ops · intermediate
- Watching daemon eventsDebugging & Ops · advanced
- Capping log file growthDebugging & Ops · advanced