I'm trying docker build -t test_1 . , but have this err:
package docker_test/mult: unrecognized import path "docker_test/mult" (import path does not begin with hostname)
The command '/bin/sh -c go get -d -v ./...' returned a non-zero code: 1
My dockerfile (path /gowork/src/Dockerfile):
FROM golang:1.9.1
COPY ./docker_test/mult /go/src/app
WORKDIR go/src/app
COPY ./docker_test/main.go .
RUN go get -d -v ./...
RUN go install -v ./...
CMD ["app"]
ENTRYPOINT ["app", "-f=7", "-s=9"]
main.go (path: gowork/src/docker_test/main.go)
package main
import (
"docker_test/mult"
"fmt"
)
func main() {
fmt.Println("From different pkg")
mult.Multiple()
}
mult.go (path: gowork/src/docker_test/mult/mult.go)
package mult
import (
"flag"
"fmt"
)
func Multiple() {
first := flag.Int("f", 0, "placeholder")
second := flag.Int("s", 0, "placeholder")
flag.Parse()
out := (*first) * (*second)
fmt.Println(out)
}
go get trying to find the package docker_test/mult into /go path. But, you have copied into /go/src/app. That's why go get can't find the package locally and assumes the package is from remote repository, eg, github, and throws error import path does not begin with hostname. So copy the docker_test/mult inside /go path.
Another concern is, when you use WORKDIR go/src/app, it creates go/src/app inside /go path, So finally the path becomes /go/go/src/app. So use absolute path ie, WORKDIR /go/src/app.
Try this dockerfile:
FROM golang:1.9.1
COPY ./docker_test/mult /go/src/docker_test/mult
WORKDIR /go/src/app
COPY ./docker_test/main.go .
RUN go get -d -v ./...
RUN go install -v ./...
CMD ["app"]
ENTRYPOINT ["app", "-f=7", "-s=9"]
Make sure you set the GOPATH, in your example import uses docker_test/mult, so in order compiler to resolve it place it into $GOPATH/docker_test/mult,
I have tweaked your Dockerfile, so you should be able to buld it
Dockerfile
FROM golang:1.9.1
ENV GOPATH /go
FROM golang:1.9.1
COPY ./docker_test /go/src/docker_test
COPY ./docker_test/main.go /go/src/app/main.go
WORKDIR /go/src/app
RUN go get -d -v ./...
RUN go install -v ./...
CMD ["app"]
ENTRYPOINT ["app", "-f=7", "-s=9"]