docker-proxy

docker-proxy.js

const net = require('net')

const port = process.env['PORT'] || 5000

function log (...args) {
  // console.log(...args)
}

function onConnect (socket) {
  log('new connection')
  const upstream = net.connect('\\\\.\\pipe\\docker_engine')

  upstream.on('connect', function () {
    log('upstream connnected')
    socket.resume()
  })

  // Socket (HTTP connection)
  socket.on('data', function (data) {
    log('socket data:', data.length, 'bytes')
    upstream.write(data)
  })
  socket.on('end', function () {
    log('socket end')
    upstream.end()
  })

  // Upstream (docker)
  upstream.on('data', function (data) {
    log('upstream data:', data.length, 'bytes')
    socket.write(data)
  })
  upstream.on('end', function () {
    log('upstream end')
  })
}

net.createServer({
  allowHalfOpen: false,
  pauseOnConnect: true
}, onConnect).listen(port)

console.log('listening on', port)

Workaround for issue with Docker Desktop for Windows: docker/for-win#3163