add write permission to build image workflow #2

	name: Build Test Image

	on:
	schedule:
	- cron: "0 03 * * *" # run every day at 03:00 UTC
	workflow_dispatch:
	inputs:
	force:
	description: "Force rebuild of test image"
	required: false
	default: "false"
	push:
	branches:
	- mount-test-dir-on-smoke-tests

	defaults:
	run:
	shell: bash

	concurrency:
	group: ${{ github.ref_name }}-ci
	cancel-in-progress: true

	permissions:
	contents: read
	id-token: write

	jobs:
	build:
	name: Build test image
	runs-on: ubuntu-22.04
	steps:
	- name: Checkout Repository
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1

	- name: Docker Buildx
	uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0

	- name: Authenticate to Google Cloud
	id: auth
	uses: google-github-actions/auth@f6de81663f7788d05bd15bcce18f0e57f23f0846 # v2.0.1
	with:
	token_format: access_token
	workload_identity_provider: ${{ secrets.GCR_WORKLOAD_IDENTITY }}
	service_account: ${{ secrets.GCR_SERVICE_ACCOUNT }}

	- name: Login to GCR
	uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
	with:
	registry: gcr.io
	username: oauth2accesstoken
	password: ${{ steps.auth.outputs.access_token }}

	- name: Build Test-Runner Container
	uses: docker/build-push-action@4a13e500e55cf31b7a5d59a38ab2040ab0f42f56 # v5.1.0
	with:
	file: tests/Dockerfile
	context: "."
	cache-from: type=gha,scope=test-runner
	tags: \|
	gcr.io/f5-gcs-7899-ptg-ingrss-ctlr/dev/test-runner:${{ hashFiles('./tests/requirements.txt') }}
	gcr.io/f5-gcs-7899-ptg-ingrss-ctlr/dev/test-runner:latest
	load: true
	pull: true
	push: true

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