build: add workflow_dispatch trigger for container builds #1

	# JULEA - Flexible storage framework
	# Copyright (C) 2023-2024 Michael Kuhn
	#
	# This program is free software: you can redistribute it and/or modify
	# it under the terms of the GNU Lesser General Public License as published by
	# the Free Software Foundation, either version 3 of the License, or
	# (at your option) any later version.
	#
	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU Lesser General Public License for more details.
	#
	# You should have received a copy of the GNU Lesser General Public License
	# along with this program. If not, see <http://www.gnu.org/licenses/>.

	name: Containers
	on:
	workflow_dispatch:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master
	# schedule:
	# - cron: '0 0 * * 0'
	jobs:
	julea-prebuild-container:
	name: JULEA Prebuild Container
	runs-on: ubuntu-24.04
	permissions:
	packages: write
	timeout-minutes: 10
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	persist-credentials: false
	show-progress: false
	- name: Login to GitHub Container Registry
	if: ${{ github.event_name != 'pull_request' }}
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Build and Push to GitHub Container Registry
	uses: docker/build-push-action@v5
	with:
	context: .
	file: Dockerfile
	push: ${{ github.event_name != 'pull_request' }}
	tags: ghcr.io/parcio/julea-prebuilt:latest

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