feat: introduce deployment settings

mgmt-lambda/app.ts

@@ -16,6 +16,7 @@ import {
 } from '@aws-sdk/client-lambda'
 import { SecretsManagerClient, GetSecretValueCommand } from '@aws-sdk/client-secrets-manager'
 import type { AuthSettings } from './model/AuthSettings'
+import type { DeploymentSettings } from './model/DeploymentSettings'
 
 const REGION = 'us-east-1'
 
@@ -29,26 +30,31 @@ export async function handler(
  const authSettings = await getAuthSettings()
  console.info(authSettings)
 
- const authorization = event.headers['Authorization']
+ const authorization = event.headers['authorization']
  if (authorization !== authSettings.token) {
  const notAuthResponse = {
  statusCode: 401,
  }
  callback(null, notAuthResponse)
  }
 
- //TODO load data from AWS Secret
- const userInput = {
- LAMBDA_NAME: '',
- CF_DISTR_ID: '',
+ let deploymentSettings: DeploymentSettings
+ try {
+ deploymentSettings = loadDeploymentSettings()
+ } catch (error) {
+ const wrongEnv = {
+ statusCode: 500,
+ body: {
+ error: error,
+ },
+ }
+ callback(null, wrongEnv)
  }
- const lambdaFunctionName = userInput.LAMBDA_NAME
- const cloudFrontDistrId = userInput.CF_DISTR_ID
 
  const path = event.rawPath
  console.info(`path = ${path}`)
  if (path.startsWith('/update')) {
- handleUpdate(cloudFrontDistrId, lambdaFunctionName)
+ handleUpdate(deploymentSettings)
  } else if (path.startsWith('/status')) {
  }
 
@@ -89,11 +95,33 @@ async function getAuthSettings(): Promise<AuthSettings> {
  }
 }
 
-async function handleUpdate(cloudFrontDistributionId: string, lambdaFunctionName: string) {
+function loadDeploymentSettings(): DeploymentSettings {
+ const cfDistributionId = process.env.CFDistributionId
+ if (!cfDistributionId) {
+ throw new Error('No CloudFront distribution Id')
+ }
+ const lambdaFunctionName = process.env.LambdaFunctionArn
+ if (!lambdaFunctionName) {
+ throw new Error('No lambda function name')
+ }
+ const lambdaFunctionArn = process.env.LambdaFunctionArn
+ if (!lambdaFunctionArn) {
+ throw new Error('No lambda function ARN')
+ }
+
+ const settings: DeploymentSettings = {
+ CFDistributionId: cfDistributionId,
+ LambdaFunctionArn: lambdaFunctionArn,
+ LambdaFunctionName: lambdaFunctionName,
+ }
+ return settings
+}
+
+async function handleUpdate(settings: DeploymentSettings) {
  console.info(`Going to upgrade Fingerprint Pro function association at CloudFront distbution.`)
- console.info(`Lambda function: ${lambdaFunctionName}. CloudFront ID: ${cloudFrontDistributionId}`)
+ console.info(`Settings: ${settings}`)
 
- const latestFunctionArn = await getLambdaLatestVersionArn(lambdaFunctionName)
+ const latestFunctionArn = await getLambdaLatestVersionArn(settings.LambdaFunctionName)
  if (!latestFunctionArn) {
  return publishJobFailure('No lambda versions')
  }
@@ -103,7 +131,7 @@ async function handleUpdate(cloudFrontDistributionId: string, lambdaFunctionName
  return publishJobSuccess()
  }
 
- updateCloudFrontConfig(cloudFrontDistributionId, lambdaFunctionName, latestFunctionArn)
+ updateCloudFrontConfig(settings.CFDistributionId, settings.LambdaFunctionName, latestFunctionArn)
 }
 
 async function updateCloudFrontConfig(

mgmt-lambda/model/DeploymentSettings.ts

@@ -0,0 +1,5 @@
+export interface DeploymentSettings {
+ CFDistributionId: string
+ LambdaFunctionArn: string
+ LambdaFunctionName: string
+}