var gulp = require('gulp')
  , cloudfront = require('gulp-cloudfront-invalidate');

var settings = {
  distribution: 'E2A654H2YRPD0W', // Cloudfront distribution ID
  paths: ['/index.html']          // Paths to invalidate
  accessKeyId: '...',             // AWS Access Key ID
  secretAccessKey: '...',         // AWS Secret Access Key
  sessionToken: '...',            // Optional AWS Session Token
  wait: true                      // Whether to wait until invalidation is completed (default: false)
}

gulp.task('invalidate', function () {
  return gulp.src('*')
    .pipe(cloudfront(settings));
});