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FROM busybox
USER ${user:-some_user}
ARG user
USER $user
RUN echo $CONT_IMG_VER
ARG CODE_VERSION=latest
FROM base:${CODE_VERSION}
CMD /code/run-app
FROM extras:${CODE_VERSION}
CMD /code/run-extras
----------------------------------------------------
[
["instruction", [
["keyword", "FROM"],
" busybox"
]],
["instruction", [
["keyword", "USER"],
["variable", "${user:-some_user}"]
]],
["instruction", [
["keyword", "ARG"],
" user"
]],
["instruction", [
["keyword", "USER"],
["variable", "$user"]
]],
["instruction", [
["keyword", "RUN"],
" echo ",
["variable", "$CONT_IMG_VER"]
]],
["instruction", [
["keyword", "ARG"],
" CODE_VERSION=latest"
]],
["instruction", [
["keyword", "FROM"],
" base:",
["variable", "${CODE_VERSION}"]
]],
["instruction", [
["keyword", "CMD"],
" /code/run-app"
]],
["instruction", [
["keyword", "FROM"],
" extras:",
["variable", "${CODE_VERSION}"]
]],
["instruction", [
["keyword", "CMD"],
" /code/run-extras"
]]
]