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dockerfiledevops

Order in dockerfile: will this throw error

RUN echo $MY_VARIABLE
ENV MY_VARIABLE="some value"

instead should i write like

ENV MY_VARIABLE="some value"
RUN echo $MY_VARIABLE

i want to know does order matter in dockerfile if i write run command first then put the ENV will it throw an error

Solution

  • Yes , I believe the order does matter. You should first declare the variable and set it.