CODEWITHSUNDEEP
dockergo
Tommy
Tommy

Reputation: 13672

go build in docker: unexpected binary in /go/bin

According to this post: What does go build build?

go build builds the binary and leaves it in the current directory, while go install moves the binary into $GOPATH/bin.

This works on my machine like that. However, I have a Dockerfile:

FROM golang:latest
ADD . /go/src/myapp
WORKDIR /go/src/myapp
RUN go get .
RUN go build 
RUN ls /go/bin # shows myapp!!
ENTRYPOINT ["/go/bin/myapp"] #works!!

There should be no difference here. The expected result was that /go/bin was empty and the binary myapp would be /go/src/myapp/myapp Instead, I see that build is working like install, and the binary shows up in /go/bin. Why??

Upvotes: 1

Views: 500

Answers (1)

codestation
codestation

Reputation: 3528

The go get command is installing your package into /go/bin. If you dont want to install your current package then pass -d to stop after downloading your dependencies.

The -d flag instructs get to stop after downloading the packages; that is, it instructs get not to install the packages.

https://golang.org/cmd/go/#hdr-Download_and_install_packages_and_dependencies

Upvotes: 1

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