For the past few months, we have been creating a new CloudFront distribution for each one of our customers with around 13 or more behaviors. This process can be quite tedious. Doing this task from GUI can become an exhausting task where you need to create these behaviors from scratch every time, which is not only boring but also difficult when it comes down to remembering all that needs to be done in order to get your distributions up-and-running. In this article, we are going to see how you can clone an existing distribution in a couple of minutes and enjoy doing it :)
Install AWS CLI
The AWS CLI is a powerful tool for managing your cloud computing resources, and it makes life so much easier to do from the command line.
If you haven't done it already, make sure you follow AWS official docs to install AWS CLI. https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html
Export existing distribution configs
First, let's create new directory to save configs there
mkdir aws-cloudfront-configs && cd aws-cloudfront-configs
Edit configuration
get-distribution-config
aws cloudfront get-distribution-config --id [ID-OF-YOUR-DISTRIBUTION] --output json > distributionConfigs.json
If you have multiple profiles, make sure you use --profile
in the command.
Edit the config file
Remove ETag
and DistributionConfig
and it's closing curly brackets. Following should be removed.
"ETag": "XXXXXXXXX",
"DistributionConfig": {
CallerReference
Change CallerReference
to a unique number.
Change Aliases
Change Aliases
data to reflect new site information. If you don't have any Alias for new site yet, remove the section. This part should be removed
"Aliases": {
"Quantity": 1,
"Items": [
"oldDOmain"
]
},
Replace old domain with new one
Now for DefaultCacheBehavior
, Origins
and CacheBehaviors
make sure to replace old domain with new one
ViewerCertificate
If you have generated SSL cert in ACM, replace what you have under ViewerCertificate
with new certificate information if not remove the ViewerCertificate
section completely.
"ViewerCertificate": {
"ACMCertificateArn": "XXXX",
"SSLSupportMethod": "XXXX",
"MinimumProtocolVersion": "TLSv1.2_2019",
"Certificate": "XXXX",
"CertificateSource": "acm"
},
Create new distribution
Make sure you are in the folder you created the distributionConfigs.json
file, create a copy of it for example myNewSite.json
and run the following command.
aws cloudfront create-distribution --distribution-config file://myNewSite.json
Don't forget to add file://
before the filename. If you don't do that, get an error.
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