$GOPATH/go.mod exists but should not when building docker container, but works if I manually run commands

Question

I'm building a golang:1.14.2 docker container with go-redis from a Dockerfile.

FROM golang:1.14.2

# project setup and install go-redis
RUN mkdir -p /go/delivery && cd /go/delivery && \
    go mod init example.com/delivery && \
    go get github.com/go-redis/redis/v7 

# important to copy to /go/delivery
COPY ./src /go/delivery

RUN ls -la /go/delivery

RUN go install example.com/delivery
ENTRYPOINT ["delivery"]

However, when I try to build the container using docker-compose up --build -d , I get this error: $GOPATH/go.mod exists but should not ERROR: Service 'delivery' failed to build: The command '/bin/sh -c go get github.com/go-redis/redis/v7' returned a non-zero code: 1 .

However, I can create a docker container using the image from the dockerfile docker container run -it --rm golang:1.14.2 and then run the exact same commands as in the Dockerfile, and delivery does what I expect it to. ``

Here is deliver.go:

package main

import (
    "fmt"

    "github.com/go-redis/redis/v7"
)

func main() {
    // redis client created here... 

    fmt.Println("inside main...")
}

What am I doing wrong? I looked up this error message and none of the solutions I've seen worked for me.

EDIT: Here is the compose file:

version: '3.4'
services:
  ...
  delivery:
    build: ./delivery
    environment:
      - REDIS_PORT=${REDIS_PORT}
      - REDIS_PASS=${REDIS_PASS}
      - QUEUE_NAME-${QUEUE_NAME}
    volumes: 
      - ./logs:/logs

Answer 1

I have same problem. You need set WORKDIR /go/delivery