GOPROXY

A global proxy for go modules. see: https://goproxy.io

Requirements

This service invokes the local go command to answer requests.

The default cacheDir is GOPATH, you can set it up by yourself according to the situation.

Build

git clone https://github.com/goproxyio/goproxy.git
cd goproxy
make

Started

Proxy mode

./bin/goproxy -listen=0.0.0.0:80 -cacheDir=/tmp/test

If you run go get -v pkg in the proxy machine, you should set a new GOPATH which is different from the original GOPATH, or you may encounter a deadlock.

See test/get_test.sh.

Router mode

./bin/goproxy -listen=0.0.0.0:80 -proxy https://goproxy.io

Use the -proxy flag combined with the -exclude flag to enable Router mode, which implements route filter to routing private modules or public modules.

                                         direct
                      +----------------------------------> private repo
                      |
                 match|pattern
                      |
                  +---+---+           +----------+
go get  +-------> |goproxy| +-------> |goproxy.io| +---> golang.org/x/net
                  +-------+           +----------+
                 router mode           proxy mode

In Router mode, use the -exclude flag to set a glob pattern. The glob will specify what packages should not try to resolve with the value of -proxy. Modules which match the -exclude pattern will resolve direct to the repo which matches the module path.

NOTE: Patterns are matched to the full path specified, not only to the host component.

./bin/goproxy -listen=0.0.0.0:80 -cacheDir=/tmp/test -proxy https://goproxy.io -exclude "*.corp.example.com,rsc.io/private"

Private module authentication

Some private modules are gated behind git authentication. To resolve this, you can force git to rewrite the URL with a personal access token present for auth

git config --global url."https://${GITHUB_PERSONAL_ACCESS_TOKEN}@github.com/".insteadOf https://github.com/

This can be done for other git providers as well, following the same pattern

Use docker image

docker run -d -p80:8081 goproxy/goproxy

Use the -v flag to persisting the proxy module data (change cacheDir to your own dir):

docker run -d -p80:8081 -v cacheDir:/go goproxy/goproxy

Docker Compose

docker-compose up

Kubernetes

Deployment:

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: goproxy
  name: goproxy
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: goproxy
    spec:
      containers:
      - args:
        - -proxy
        - https://goproxy.io
        - -listen
        - 0.0.0.0:8081
        - -cacheDir
        - /tmp/test
        - -exclude
        - github.com/my-org/*
        image: goproxy/goproxy
        name: goproxy
        ports:
        - containerPort: 8081
        volumeMounts:
        - mountPath: /tmp/test
          name: goproxy
      volumes:
      - emptyDir:
          medium: Memory
          sizeLimit: 500Mi
        name: goproxy

Deployment (with gitconfig secret):

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: goproxy
  name: goproxy
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: goproxy
    spec:
      containers:
      - args:
        - -proxy
        - https://goproxy.io
        - -listen
        - 0.0.0.0:8081
        - -cacheDir
        - /tmp/test
        - -exclude
        - github.com/my-org/*
        image: goproxy/goproxy
        name: goproxy
        ports:
        - containerPort: 8081
        volumeMounts:
        - mountPath: /tmp/test
          name: goproxy
        - mountPath: /root
          name: gitconfig
          readOnly: true
      volumes:
      - emptyDir:
          medium: Memory
          sizeLimit: 500Mi
        name: goproxy
      - name: gitconfig
        secret:
          secretName: gitconfig
---
apiVersion: v1
data:
  # NOTE: Encoded version of the following, replacing ${GITHUB_PERSONAL_ACCESS_TOKEN}
  # [url "https://${GITHUB_PERSONAL_ACCESS_TOKEN}@github.com/"]
  # insteadOf = https://github.com/
  .gitconfig: *****************************
kind: Secret
metadata:
  name: test

Appendix

If running locally, set export GOPROXY=http://localhost[:PORT] to use your goproxy.
Set export GOPROXY=direct to directly access modules without your goproxy.