feat(image-build): use Docker buildx, publish multi arch images #4

	name: Build & Push Docker Image

	on:
	push:
	branches:
	- master
	release:
	types: [published]

	jobs:
	build-and-push:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v3

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2
	with:
	install: true

	- name: Log in to DockerHub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	- name: Extract version from release tag
	if: github.event_name == 'release'
	id: version
	run: echo "RELEASE_VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV

	- name: Build and push Docker image
	if: github.ref == 'refs/heads/master' && github.event_name == 'push'
	run: \|
	docker buildx create --use
	docker buildx build --platform linux/amd64,linux/arm64 -f backend.dockerfile -t itzcrazykns1337/perplexica-backend:main --push .
	docker buildx build --platform linux/amd64,linux/arm64 -f app.dockerfile -t itzcrazykns1337/perplexica-frontend:main --push .

	- name: Build and push release Docker image
	if: github.event_name == 'release'
	run: \|
	docker buildx create --use
	docker buildx build --platform linux/amd64,linux/arm64 -f backend.dockerfile -t itzcrazykns1337/perplexica-backend:${{ env.RELEASE_VERSION }} --push .
	docker buildx build --platform linux/amd64,linux/arm64 -f app.dockerfile -t itzcrazykns1337/perplexica-frontend:${{ env.RELEASE_VERSION }} --push .

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