Redirect non-www to www with S3 and CloudFront
If you want to redirect (non-www to www) to your static website hosted on S3 and delivered by CloudFront, this guide is for you.
Prerequisites
We will use such tools as:
Prepare the S3 buckets
At first, you need to create your S3 buckets. The main bucket name will be www.yourdomain.com, the second one will be yourdomain.com. When completed - upload static content to your main bucket, then complete static website hosting.
For yourdomain.com named bucket use these settings:
Get certificates for your domain
Change your region to us-east-1 and go to Amazon Certificate Manager, reqest certificates for both of your domain names www.yourdomain.comand yourdomain.com. Don't forget to create CNAME records in Route53.
Configuring CloudFront
After getting certificates, go to CloudFront and create two ditributions. For Origin Domain Name use the S3 endpoint, don't use the autocompleted variant.
For Viewer Protocol Policy use Redirect HTTP to HTTPS.
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CNAME for the main CloudFront distibution is going to be www.yourdomain.com with your www certificate.
CNAME for the second CloudFront distibution is going to be yourdomain.com with your non-www certificate.
Disable CloudFront caching.
Configuring Route53
For www.yourdomain.com create A record with alias to CloudFront address according to www domain.
For yourdomain.com create A record with alias to CloudFront address according to non-www domain.
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