Change get-function to describe-function cloudfront function workflow #3

	name: Deploy IG Routing Cloudfront function Workflow

	on:
	push:

	jobs:
	build:
	name: Deploy IG Routing Cloudfront function
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	steps:
	- uses: actions/checkout@v4

	- name: Use Node.js 16.x
	uses: actions/setup-node@v4
	with:
	node-version: 16
	cache: npm

	- name: Configure AWS credentials
	uses: aws-actions/configure-aws-credentials@v4
	with:
	role-to-assume: arn:aws:iam::209248795938:role/SmartFormsReactAppDeployment
	aws-region: ap-southeast-2

	- name: Describe the SmartFormsIgRouting function to get current ETag
	id: describe_function
	run: \|
	OUTPUT=$(aws cloudfront describe-function --name SmartFormsIgRouting)
	ETag=$(echo $OUTPUT \| jq -r '.ETag')
	echo "::set-output name=etag::$ETag"
	shell: bash

	- name: Update the SmartFormsIgRouting Function
	id: update_function
	run: \|
	OUTPUT=$(aws cloudfront update-function \
	--name SmartFormsIgRouting \
	--if-match ${{ steps.describe_function.outputs.etag }} \
	--function-config "{\"Comment\":\"Manages routing within the Smart Forms IG\",\"Runtime\":\"cloudfront-js-2.0\"}" \
	--function-code fileb://./SmartFormsIgRouting.js)

	NEW_ETAG=$(echo $OUTPUT \| jq -r '.ETag')
	echo "::set-output name=new_etag::$NEW_ETAG"
	shell: bash

	- name: Publish the SmartFormsIgRouting Function
	run: \|
	aws cloudfront publish-function \
	--name SmartFormsIgRouting \
	--if-match ${{ steps.update_function.outputs.new_etag }}
	shell: bash

	- name: Log the new ETag
	run: \|
	echo "New ETag after updating and publishing: ${{ steps.update_function.outputs.new_etag }}"
	shell: bash

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