standard_init_linux.go：185：exec用户进程导致“无此文件或目录”构建docker映像

Question

I am trying to generate a docker image based on a binary of Go. I have the next Dockerfile:

FROM alpine

WORKDIR /

# Now just add the binary
RUN apk add --update bash && rm -rf /var/cache/apk/*
ADD mybinary /
ADD config /config
ADD data /data

ENTRYPOINT ["./mybinary"]

And I built the binary by doing:

env GOOS=linux GOARCH=386 CGO_ENABLED=1 go build -o mybinary

The binary works pretty good if I executed alone, and the docker image is created as well, but in the moment of execution then I get the error:

 standard_init_linux.go:185: exec user process caused "no such file or directory"

I read in many post that it's something regarding git, so, I deleted and cloned the project again but still I get the same error

Answer 1

Your docker image starts from alpine linux dstro. Hence you should use a supported cpu architecture

GOARCH=amd64 instead of GOARCH=386.

You can see other supported architectures here. https://hub.docker.com/r/library/alpine/

Links to the alpine docker images of other architectures can be found here https://github.com/docker-library/official-images#architectures-other-than-amd64