When trying to build docker image, I get ""gcc": executable file not found in $PATH"

Question

I have gcc on windows.

C:\Users\jkrov>gcc --version
gcc (MinGW.org GCC-8.2.0-5) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

My docker file:

FROM golang:alpine
RUN mkdir /app
WORKDIR /app
ADD . /app
RUN go build -o main .
EXPOSE 8080
CMD [ "app/main" ]

When I try to build image I get error:

exec: "gcc": executable file not found in $PATH

Answer 1

Add the gcc tools fixed the problem.

RUN apk add build-base

Also you can the this:

RUN apk --no-cache add make git gcc libtool musl-dev ca-certificates dumb-init 

Answer 2

I encountered the same problem when building a go app using an alpine image. Installing gcc fixed the problem. Here is how your Dockerfile should look like:

FROM golang:alpine
RUN apk add build-base
RUN mkdir /app
WORKDIR /app
ADD . /app
RUN go build -o main .
EXPOSE 8080
CMD [ "app/main" ]