Tag: Unable

I’ve been experiencing some issues trying to run a Docker image that builds a Go project.

Any help would be very appreciated, as I’ve been stuck on this for days. I’m not a Docker expert, so I could be doing a newbie mistake.

I’m trying to share a volume in my machine with my Go project, then installing Go 1.9 in the Docker container and using GVM so I’d be able to change its version easily later on. Also, I’m using this watcher: /canthefason/go-watcher so it rebuilds automatically for me the Go project every time there’s a change in a file.

But when I docker-compose up my container, the watcher is unable to build the project, it tells me can't load package: package finance: no Go files in /go/src/finance.

The root folder of the project in my machine (/finance) in fact doesn’t contain any Go file (the Go files are in subfolders of this root folder), so the project structure looks like this:

 - finance   - build      - package          - Dockerfile          - entrypoint.sh   - cmd      - finance          - main.go   - internal      - other .go files   - docker-compose.yml 

In my Dockerfile I declare a

ENV GOPATH /go

To use it as my GOPATH, but it doesn’t work. I’ve also tried to RUN export GOPATH=/go right before the last few lines of the Dockerfile but it also doesn’t work.

When my container starts running the GOPATH is always set to GOPATH="/root/.gvm/pkgsets/go1.9/global" and I found out this is because of GVM, but I don’t want it to change the default GOPATH, I want GOPATH=/go and I suspect the watcher is unable to build the Go project because of this discrepancy.

So basically, I cannot set my GOPATH because GVM always set it for its default path, and that probably is the reason the watcher is unable to compile and run my Go project.

Here is my Dockerfile:

    FROM buildpack-deps:jessie-scm     MAINTAINER Can Yucel "can.yucel@gmail.com"      RUN apt-get update && apt-get install -y --no-install-recommends \             g++ \             gcc \             libc6-dev \             make \             pkg-config \             bison \             && rm -rf /var/lib/apt/lists/*      SHELL ["/bin/bash", "-c"]      ENV GO_VERSION 1.9      RUN curl -s -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer | bash      RUN . /root/.gvm/scripts/gvm && \           gvm install go$  {GO_VERSION} -B && \           gvm use go$  {GO_VERSION}      ENV WATCHER_VERSION 0.2.4      ADD https://github.com/canthefason/go-watcher/releases/download/v$  {WATCHER_VERSION}/watcher-$  {WATCHER_VERSION}-linux-amd64 /root/.gvm/bin/watcher      RUN chmod +x /root/.gvm/bin/watcher .     # Apparently this is useless \/     ENV GOPATH /go      WORKDIR /go/src/finance      ADD ./build/package/entrypoint.sh /go/src/finance/cmd/finance      RUN chmod +x /go/src/finance/cmd/finance .      # This doesn't seem to work!! \/     RUN export GOPATH=$  {GOPATH}       ENTRYPOINT ["/entrypoint.sh"]     CMD ["watcher"]