How to generate cloudfront Inputs for serverless.yml ?

[kartikag01]

This is a sort of question, not a bug or feature request.

if we want to download current applied CloudFront config command is
cloudfront get-distribution-config --id ############ > current_cloudfront_configuration.json

but this gives JSON as an output, if we want to get apply the output to yml, this is very difficult as we have to map all behaviors, origins, restrictions, etc.

Is there any way we can get or convert currently applied config to the required yml structure?

Because we have lot many configurations in CloudFront, after deployment we use to run a script to overrides the configuration

sleep 30
id="#############"
aws cloudfront get-distribution-config --id "$id" > current_cloudfront_configuration.json --profile prod
lambdaVersion=$( cat current_cloudfront_configuration.json | jq --raw-output '.DistributionConfig.DefaultCacheBehavior.LambdaFunctionAssociations.Items[0].LambdaFunctionARN' | rev | cut -d ":" -f1 | rev )
etag=$( cat current_cloudfront_configuration.json | jq --raw-output '.ETag' )
cp cloudfront.cfg tmp_cloudfront_config.cfg
cloudfrontLambdaARN=$( cat tmp_cloudfront_config.cfg | jq --raw-output '.DefaultCacheBehavior.LambdaFunctionAssociations.Items[].LambdaFunctionARN' )
updatedLambdaARN=$( echo "$cloudfrontLambdaARN"  | sed "s/:[^:]*$/:${lambdaVersion}/g" )
sed -i "s/${cloudfrontLambdaARN}/${updatedLambdaARN}/g" tmp_cloudfront_config.cfg
aws cloudfront update-distribution --id "$id" --distribution-config file://tmp_cloudfront_config.cfg --if-match "$etag" --profile prod
rm current_cloudfront_configuration.json

and our serverless.yml is

myNextApp:
  component: "@sls-next/serverless-component@1.17.0-alpha.12"
  inputs:
    bucketName: my-bucket-name
    logLambdaExecutionTimes: true

we want to move all config from JSON to yml.

Thanks in advance.

[dphang]

I think it would be hard, as I think the format for CloudFront inputs is likely quite different from the JSON output of that command (looks like AWS CLI command?)

[kartikag01]

@dphang
Any idea, can we supply JSON instead of yml to the CloudFront package?

[dphang]

I think you would need to convert it first to YML and match the format used, also not all the CloudFront inputs are supported. I think you would need to modify code here to support the inputs you need: https://github.com/serverless-nextjs/serverless-next.js/tree/master/packages/serverless-components/aws-cloudfront/lib. You can see some example commits, for example adding error pages: f3d2a17