3 DL3022
José Lorenzo Rodríguez edited this page 2018-02-04 18:23:56 +01:00

COPY --from should reference a previously defined FROM alias

Problematic code:

FROM debian:jesse

RUN stuff

FROM debian:jesse

COPY --from=build some stuff ./

Correct code:

FROM debian:jesse as build

RUN stuff

FROM debian:jesse

COPY --from=build some stuff ./

Rationale:

Trying to copy from a missing image alias results in an error.