I've created the following docker container , all works except on thing which is the make lint
In the project root I've Makefile with the current entry
lint:
gometalinter --config=gometalinter.json ./...
when I use it locally in my machine (macbook) and if for example file is not formatted go fmt I get error when executing above code.
The problem is that when I create the docker image via docker build command
I got different linting issues which is not related to my project. in the gometalinter.json I've the following entry to bypass the vendor directory
{
"vendor": true
}
This is the docker content
FROM golang:1.11.1-alpine3.7
RUN apk add --update --no-cache git make curl bash
ADD https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 /usr/bin/dep
RUN chmod +x /usr/bin/dep
WORKDIR /go/src/my-proj
COPY . ./
COPY Gopkg.toml Gopkg.lock ./
RUN dep ensure
# From the error it seems that this is related to cgo but even adding the next line doesnt helps, same error occurred
RUN CGO_ENABLED=0
# this command download gometalinter which is running OK
RUN make download
RUN make lint
when I run the lint this is what I got which is not related to my project
../../../usr/local/go/src/net/lookup_unix.go:80:24:warning: error return value not checked (undeclared name: cgoLookupHost) (errcheck)
../../../usr/local/go/src/net/lookup_unix.go:95:24:warning: error return value not checked (undeclared name: cgoLookupIP) (errcheck)
../../../usr/local/go/src/net/lookup_unix.go:107:23:warning: error return value not checked (undeclared name: cgoLookupPort) (errcheck)
../../../usr/local/go/src/net/lookup_unix.go:123:24:warning: error return value not checked (undeclared name: cgoLookupCNAME) (errcheck)
../../../usr/local/go/src/net/lookup_unix.go:323:23:warning: error return value not checked (undeclared name: cgoLookupPTR) (errcheck)
You are not correctly setting the environment variable in your Dockerfile.
RUN CGO_ENABLED=0
should be
ENV CGO_ENABLED=0