Docker RedHat test image #26

	---
	name: Docker RedHat test image

	# Builds RedHat build environment image (amd64 only, no FEniCS components).
	#
	# Must be triggered manually via GitHub interface.

	on:
	workflow_dispatch:
	inputs:
	tag_prefix:
	description: "tag prefix for docker images"
	default: "current"
	type: string
	required: true

	jobs:
	create_build_images:
	name: Create build env images
	if: ${{ github.repository == 'FEniCS/dolfinx' }}

	runs-on: ubuntu-latest
	steps:
	- name: Checkout DOLFINx
	uses: actions/checkout@v4

	- name: Create image name and tag
	run: \|
	USER_INPUT=${{ github.event.inputs.tag_prefix }}
	echo "TAG=docker.io/fenicsproject/test-env:${USER_INPUT:-current}-redhat" >> $GITHUB_ENV

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

	- name: Login to Docker Hub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v5
	with:
	context: docker/
	cache-to: type=inline
	file: docker/Dockerfile.redhat
	push: true
	tags: ${{ env.TAG }}

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