是否可以在Docker中安装gopkg.in软件包？

Question

I am trying to run golang application which use goracle library with such Dockerfile:

FROM golang:1.12

RUN go get github.com/gorilla/mux && \
  go get github.com/gorilla/handlers && \
  go get github.com/lib/pq && \
  go get github.com/joho/godotenv && \
  go get github.com/jinzhu/gorm && \
  go get gopkg.in/goracle.v2

ADD ./ /go/src/application

WORKDIR /go/src/application

RUN go build -o /bin application

ENV PORT=8000

CMD ["/bin"]

Unfortunatly it raise error when I try to create image:

package gopkg.in/goracle.v2: unrecognized import path "gopkg.in/goracle.v2" (https fetch: Get https://gopkg.in/goracle.v2?go-get=1: proxyconnect tcp: tls: first record does not look like a TLS handshake)
The command '/bin/sh -c go get github.com/gorilla/mux &&   go get github.com/gorilla/handlers &&   go get github.com/lib/pq &&   go get github.com/joho/godotenv &&   go get github.com/jinzhu/gorm &&   go get gopkg.in/goracle.v2' returned a non-zero code: 1

Why I can't install goracle library in Docker? How to fix this problem?

Answer 1

In my case the CentOS server where was located Docker has proxy. For thats why I couldn't download the gopkg.in/goracle.v2 package.

SOLUTION:

1) Create vender folder inside your project.

2) Remove source code of gopkg.in/goracle.v2 package which you has in go/src folder to vender folder.

3) Run you Dockerfile.

In my case this instruction removed problem with importing of gopkg.in/goracle.v2 package.

I hope this post will helpful for somebody!