Removes all lingering docker images with a repository of <none>

docker-clean-none-images.js

var _ = require('lodash')
var exec = require('child_process').exec

var removeUnnamedDockerImages = function (json) {
  _.forEach(json, function (image) {
    if (image.repo === '<none>') {
      exec('docker rmi -f ' + image.imageId, function (rmErr, rmStdout, rmStderr) {
        if (rmErr) {
          return console.error(rmErr)
        }

        console.log('Removed ' + image.id)
      })
    }
  })
}

exec('docker images', function (err, stdout, stderr) {
  var lines = stdout.split('\n')
  var json = _.reduce(lines, function (total, line, count) {
    var chunks = _.compact(line.split('  '))
    if (count === 0) return total
    if (_.isEmpty(chunks)) return total

    total.push({
      repo: chunks[0],
      tag: chunks[1],
      imageId: chunks[2],
      created: chunks[3],
      size: chunks[4]
    })

    return total
  }, [])

  removeUnnamedDockerImages(json)
})