Add defaultCacheBehavior from MadSkills-io#19

Author: Andy Hahn

README.md

@@ -5,8 +5,7 @@
 [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/MadSkills-io/fullstack-serverless/master/LICENSE)
 [![npm downloads](https://img.shields.io/npm/dt/fullstack-serverless.svg?style=flat)](https://www.npmjs.com/package/fullstack-serverless)
 
-A [serverless](http://www.serverless.com) plugin that automatically creates an AWS CloudFront distribution that serves static web content from S3 and optionally routes API traffic
-to API Gateway.  
+A [serverless](http://www.serverless.com) plugin that automatically creates an AWS CloudFront distribution that serves static web content from S3 and optionally routes API traffic to API Gateway.  
 
 Home page - https://www.madskills.io/fullstack-serverless/
 
@@ -17,9 +16,10 @@ Home page - https://www.madskills.io/fullstack-serverless/
 - No CORS needed
 - Enables CDN caching of resources - so you don't waste Lambda invocations or API Gateway traffic
   for serving static files (just [set Cache-Control headers](https://serverless.com/framework/docs/providers/aws/events/apigateway/#custom-response-headers) in API responses)
-- Much more CloudWatch statistics of API usage (like bandwidth metrics)
+- More CloudWatch statistics of API usage (like bandwidth metrics)
 - Real world [access log](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/AccessLogs.html) - out of the box, API Gateway currently does not provide any kind of real "apache-like" access logs for your invocations
 - [Web Application Firewall](https://aws.amazon.com/waf/) support - enable AWS WAF to protect your API from security threats
+- Can be used to manage S3 content and CloudFront without API Gateway by simply not defining any functions
 
 ## Before you begin
 * Install the serverless framework
@@ -502,6 +502,21 @@ Use this parameter if you want to add additional origins to the CloudFormation r
 
 ---
 
+**defaultCacheBehavior**
+
+_optional_, default: `not set`
+
+```yaml
+custom:
+  fullstack:
+    ...
+    defaultCacheBehavior:
+      MinTTL: 3600
+    ...
+```
+
+---
+
 **cacheBehaviors**
 
 _optional_, default: `not set`

index.js

@@ -149,6 +149,7 @@ class ServerlessFullstackPlugin {
     }
 
     processDeployment() {
+
         if(this.cliOptions['client-deploy'] !== false) {
             let region,
                 distributionFolder,
@@ -348,7 +349,7 @@ class ServerlessFullstackPlugin {
         this.prepareSinglePageApp(resources.Resources);
         this.prepareS3(resources.Resources);
         this.prepareMinimumProtocolVersion(distributionConfig);
-        this.prepareCompressWebContent(distributionConfig);
+        this.prepareDefaultCacheBehavior(distributionConfig);
 
     }
 
@@ -532,10 +533,15 @@ class ServerlessFullstackPlugin {
         resources.WebAppS3Bucket.Properties.WebsiteConfiguration.ErrorDocument = errorDocument;
     }
 
-    prepareCompressWebContent(distributionConfig) {
+    prepareDefaultCacheBehavior(distributionConfig) {
+        const defaultCacheBehavior = this.getConfig('defaultCacheBehavior', {})
         const compressWebContent = this.getConfig('compressWebContent', true);
 
-        distributionConfig.DefaultCacheBehavior.Compress = compressWebContent;
+        distributionConfig.DefaultCacheBehavior = Object.assign({},
+            distributionConfig.DefaultCacheBehavior,
+            defaultCacheBehavior,
+            { Compress: compressWebContent }
+        );
     }
 
     getBucketName(bucketName) {