update docs for 0.21.6-2 #2480

	name: Indexer Service Image

	on:
	push:
	branches:
	- main
	tags:
	- v..*
	pull_request:
	branches: [main]

	jobs:
	build:
	runs-on: ubuntu-22.04
	permissions:
	packages: write

	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: Docker meta
	id: docker_meta
	uses: crazy-max/ghaction-docker-meta@v1
	with:
	images: ghcr.io/graphprotocol/indexer-service
	tag-sha: true
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v1
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1
	- name: Login to GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{github.repository_owner}}
	password: ${{secrets.GITHUB_TOKEN}}
	- name: Setup python
	uses: actions/setup-python@v4
	with:
	python-version: '3.11'
	- name: Set up Node.js v20
	uses: actions/[email protected]
	with:
	node-version: 20
	- name: Build and push Indexer Service image
	id: docker_build
	uses: docker/build-push-action@v2
	with:
	context: .
	file: Dockerfile.indexer-service
	# Enabling the line below restricts Docker images to only be built for branches
	# push: ${{github.event_name != 'pull_request'}}
	push: true
	tags: ${{steps.docker_meta.outputs.tags}}
	labels: ${{steps.docker_meta.outputs.labels}}
	build-args: NPM_TOKEN=${{secrets.graphprotocol_npm_token}}

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