docker内的golang错误

Question

I get a strange error in docker when building my go app:

./main.go:31:9: cannot use db (type *"github.com/khwerhahn/somerepo/vendor/github.com/jinzhu/gorm".DB) as type *"app/vendor/github.com/jinzhu/gorm".DB in argument to Migrate  
The command '/bin/sh -c go-wrapper install' returned a non-zero code: 2

Could somebody hint me into the right direction, because locally the app runs just fine. Its just inside the docker container. I use glide to manage dependencies.

Dockerfile:

FROM golang:1.9
WORKDIR /go/src/app
COPY . .
RUN go-wrapper download
RUN go-wrapper install

CMD ["go-wrapper", "run"]

//// Edit This is how my structure looks. Glide manages the vendor folder. The docker build does the rest.

Answer 1

It's because go get is called by go-wrapper download. This fetches the dependencies from the remote instead of looking in the vendor folder.

If your libraries are already vendored and the code is in the vendor folder, all you should have to do is go run or go install.

and why do you need go-wrapper when you can just do.

RUN glide install
RUN go install
WORKDIR "../bin"
RUN myapp