Update docker build & push setting #55

	name: CI

	on:
	pull_request:
	push:
	branches:
	- japanese

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Set up Docker Build
	uses: docker/setup-buildx-action@v2

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build Docker image
	uses: docker/build-push-action@v5
	with:
	file: ./docker/Dockerfile
	platforms: linux/amd64
	push: ${{ github.ref == 'refs/heads/japanese' }}
	load: ${{ github.ref != 'refs/heads/japanese' }}
	tags: ghcr.io/ymotongpoo/erlang-in-anger-pdf:latest
	cache-from: type=gha
	cache-to: type=gha,mode=max

	- name: PDF build
	run: \|
	sudo chown -R root:root $GITHUB_WORKSPACE
	docker-compose up --abort-on-container-exit

	- name: Push Docker image
	run: docker-compose push
	if: ${{ github.ref == 'refs/heads/japanese' }}

	- name: Push PDF file
	uses: actions/upload-artifact@v2
	with:
	name: erlang in anger
	path: text-ja.pdf

	release:
	name: Publish artifact to gh-pages
	if: github.ref == 'refs/heads/japanese'
	needs: build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Download PDF
	uses: actions/download-artifact@v2
	with:
	name: erlang in anger
	path: ./build/

	- name: Deploy to gh-pages
	uses: JamesIves/github-pages-deploy-action@4.2.0
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	branch: gh-pages
	folder: build
	target-folder: ./
	clean: true

Provide feedback