Generic Dockerfile for the new alpine repos #1

	name: Build and Push Docker Images

	on:
	push:
	workflow_dispatch:
	# schedule:
	# - cron: '0 0 * * *' # runs every day at midnight

	jobs:
	build-and-push:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	alpine_version:
	- 2.7
	- 3.1
	- 3.2
	- 3.3
	- 3.4
	- 3.5
	- 3.6
	- 3.7
	- 3.8
	- 3.9
	- 3.10
	- 3.11
	- 3.12
	- 3.13
	- 3.14
	- 3.15
	- 3.16
	- 3.17
	- 3.18
	- 3.19
	- latest
	- edge

	steps:
	- name: Check out code
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Login to Docker Hub
	run: docker login -u ${{ secrets.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and Push Image
	run: \|
	if [ -f "Dockerfile-${{ matrix.alpine_version }}" ]; then
	DOCKERFILE=Dockerfile-${{ matrix.alpine_version }}
	else
	DOCKERFILE=Dockerfile
	fi

	docker buildx build \
	--push \
	--pull \
	--quiet \
	--platform linux/amd64,linux/arm64 \
	--tag andrius/alpine-ruby:${{ matrix.alpine_version }} \
	--build-arg ALPINE_VERSION=${{ matrix.alpine_version }} \
	--file $DOCKERFILE
	.

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