- Layerfile Reference
RUN (BACKGROUND|REPEATABLE) [command ...]
RUN instruction runs the given script, and fails the entire Layerfile if
the given command fails.
For example, you might use
RUN echo "the directory is $(pwd)" to print your
RUN echo helloprints “hello” to the terminal
RUN BACKGROUND python3 -m http.serverrun
python3 -m http.serverpersistently in the background.
RUN REPEATABLE docker build -t hellois a performance optimization, see tuning performance