@seek/kms-config
v1.0.0
Published
Decrypt KMS encrypted values in config files
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config ⇒ Promise
Decrypt KMS encrypted values in config files. This tool is optimised for use in node 4.3.2 AWS Lambda functions but should work in any modern node runtime.
Install
npm install --save @seek/kms-config
Usage
The user that is running the lambda will need kms:Decrypt
permission to the master key used for generating the ciphertext.
Warning* To reduce KMS overhead you should just call this once and cache the result if possible.
myConfig.json
{
"foo" : "bar",
"kms" { //All the values in this object are expected to be KMS ciphertext
"secretToHappiness" : "base64_encoded_ciphertext"
}
}
handler.js
const myConfig = require('./myConfig')
const config = require('@seek/kms-config')(myConfig)
config.then(resolved => {
console.log(resolved.foo) // "bar"
console.log(resolved.kms.secretToHappiness) // "eat more chocolate"
}).catch(err => {
console.log(err, "Oh dear perhaps you are missing KMS permissions")
})
...
Returns: Promise - A promise to the loaded config which will be resolved with all kms values decrypted.
| Param | Type | Description |
| --- | --- | --- |
| config | Object | A config object which may contain a child kms
object who's values are KMS ciphertext |