Updated build_matrix.json #24

	---
	name: Build All

	on:
	workflow_dispatch:
	push:
	paths:
	- build_matrix.json

	jobs:
	discover:
	runs-on: ubuntu-latest
	outputs:
	build_matrix: ${{ steps.discover.outputs.build_matrix }}
	steps:
	- uses: actions/checkout@v4
	- id: discover
	run: echo "build_matrix=$(jq -r '. \| tostring' build_matrix.json)" \| tee -a "$GITHUB_OUTPUT"

	build:
	name: "build (${{ matrix.tag }})"
	needs: discover
	runs-on: ubuntu-latest
	continue-on-error: true
	strategy:
	fail-fast: false
	matrix: ${{ fromJSON(needs.discover.outputs.build_matrix) }}
	env:
	docker_repo: ndunnett/python
	steps:
	- uses: actions/checkout@v4

	- uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push image
	shell: bash
	run: \|
	set -eux

	docker build . --tag "${{ env.docker_repo }}:${{ matrix.tag }}" \
	--build-arg "PYTHON_VERSION=${{ matrix.python_version }}" \
	--build-arg "BASE_IMAGE=${{ matrix.base_image_repo }}" \
	--build-arg "BASE_IMAGE_TAG=${{ matrix.base_image_tag }}" \

	docker push "${{ env.docker_repo }}:${{ matrix.tag }}"

	- name: Push alias tags
	shell: bash
	run: \|
	set -eux

	for tag_alias in ${{ matrix.aliases }}; do
	docker manifest create "${{ env.docker_repo }}:$tag_alias" "${{ env.docker_repo }}:${{ matrix.tag }}"
	docker manifest push "${{ env.docker_repo }}:$tag_alias"
	done

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