👷 Test on multiple Ruby versions #75

	name: main CI
	on:
	push:
	branches: [main]
	pull_request:
	branches:
	- main
	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	ruby-version: ['3.0', '3.1', '3.2']
	steps:
	- uses: actions/checkout@v4
	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby-version }}
	bundler-cache: true
	- name: Set up the database
	run: bundle exec rake db:migrate RAILS_ENV=test
	- name: Run tests
	run: bundle exec rake
	build:
	# see https://docs.docker.com/ci-cd/github-actions/
	runs-on: ubuntu-latest
	needs: test
	if: github.ref == 'refs/heads/main'
	steps:
	- 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: Check Out Repo
	uses: actions/checkout@v4
	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v3
	- name: Build and push
	id: docker_build
	uses: docker/build-push-action@v5
	with:
	context: ./
	file: ./Dockerfile
	builder: ${{ steps.buildx.outputs.name }}
	push: true
	tags: chaosdorf/mete:latest
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache
	- name: Image digest
	run: echo ${{ steps.docker_build.outputs.digest }}

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