arn.services

A utility service for Amazon Resource Names (ARNs), providing the functionality as listed below. You can consume it as an online service via https://arn.services or run it yourself as a SAM application, see details below in the run it yourself section.

Use it

ARN Services has two features: you can break up an ARN into its components and you can generate an ARN from its components. There are at the moment no semantic checks done, however for the generate/ endpoint some defaulting is provided.

Compartmentalize

In order to break up an ARN into its components (or: compartmentalize), use an HTTP GET on explode/$ARN, for example:

$ curl -s https://arn.services/explode/arn:aws:s3:us-west-2::abucket | jq .
{
  "Partition": "aws",
  "Service": "s3",
  "Region": "us-west-2",
  "AccountID": "",
  "Resource": "abucket"
}

Generate

To generate a fully qualified ARN from (certain) components, use an HTTP POST to generate/, for example:

$ curl -s -X POST \
       -H "Content-Type: application/json" \
       -d '{"Service":"s3", "Resource":"somebucket/someobject"}' \
       https://arn.services/generate
arn:aws:s3:us-west-2::somebucket/someobject

Run it yourself

If you want to run ARN services yourself, you need to:

1. clone this repo (using git clone https://github.com/mhausenblas/arn.services.git for example)
2. create an S3 bucket for the Lambda functions and change the value of ARNS_BUCKET to your own S3 bucket in the Makefile
3. execute make deploy
4. OPTIONALLY: set up API Gateway and Route 53 for a custom domain and run make up ARNS_ACM_CERT=$ARNS_ACM_CERT with the ARN of the ACM cert (I did email validate for my Namecheap domain).