CloudFrontの設定を一括でアップデートするJavaScriptを書いてみた ref: http://qiita.com/motchi0214/items/872ef8c67587330dc0bb

index.js

var AWS = require('aws-sdk');
var conf = require('./config.js');

var cloudfront = new AWS.CloudFront({
    apiVersion: '2016-09-07',
    accessKeyId: AWS_ACCESS_KEY,
    secretAccessKey: AWS_SECRET_KEY,
});

function updateCloudFrontDistribution( distribution ) {
    var params = {
      Id: distribution.Id
    };
    cloudfront.getDistributionConfig(params).promise()
    .then( function(data){
        // Write CloudFront Distribution Setting
        data.DistributionConfig.HttpVersion = 'http2';

        // Do update distribution setting
        doUpdateCloudFront( data,  distribution );
    }).catch( function(err) {
        console.log(err);
    });
}

function updateCloudFrontDistributions( Marker ) {
    if ( Marker === undefined ) {
        console.log('end');
        return;
    }
    console.log('start to ' + Marker);
    var params = {
      Marker: Marker,
      MaxItems: '3'
    };
    cloudfront.listDistributions(params).promise()
    .then( function(data) {
        i = 0;
        while(i < data.DistributionList.Items.length) {
            Marker = data.DistributionList.Items[i].Id;
            updateCloudFrontDistribution( data.DistributionList.Items[i] );
            i=(i+1)|0;
        }
        console.log(i);
        if ( i !== 0 ){
            return Marker;
        }
    }).then( function(Marker){
        setTimeout(function(){
            console.log('Next start is ' + Marker);
            updateCloudFrontDistributions( Marker );
        }, 10000);
    }).catch( function(err) {
        console.log(err);
    });
}


function doUpdateCloudFront( data,  distribution ) {
    var params = {
        Id: distribution.Id,
        IfMatch: data.ETag,
        DistributionConfig: data.DistributionConfig
    };

    cloudfront.updateDistribution(params).promise()
    .then( function(data){
        console.log(data);
    }).catch( function(err) {
        console.log(err);
    });
}

updateCloudFrontDistributions( '' );