Merge pull request #7 from Okabe-Junya/junya/docs/add-badge #3

	name: docker-build

	on:
	push:
	branches:
	- "master"
	workflow_dispatch:
	inputs:
	no-cache:
	description: "Whether to use cache or not"
	required: false
	default: false
	type: boolean

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3

	- name: Login to Docker Hub
	uses: docker/login-action@v2
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

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

	- name: Cache Docker layers
	uses: actions/cache@v3
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-

	- name: Build and push
	uses: docker/build-push-action@v4
	with:
	context: .
	file: ./Dockerfile
	push: true
	no-cache: ${{ inputs.no-cache == true }}
	tags: ${{ secrets.DOCKERHUB_USERNAME }}/ns3-gym:latest
	cache-from: type=gha
	cache-to: type=gha,mode=max

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