Instruction
Also written: Dockerfile instruction
A capitalized keyword at the start of a Dockerfile line, such as `FROM`, `COPY` or `RUN`, that tells Docker one build step. Each instruction that changes files makes a layer.
Also written: Dockerfile instruction
A capitalized keyword at the start of a Dockerfile line, such as `FROM`, `COPY` or `RUN`, that tells Docker one build step. Each instruction that changes files makes a layer.