Merge v1.6.0 release candidate branch '1.6.0-rc1' #35

	name: Publish Latest Cymetric

	on:
	# allows us to run workflows manually
	workflow_dispatch:
	pull_request:
	paths:
	- '.github/workflows/publish_latest.yml'
	push:
	branches:
	- main

	jobs:
	build-cymetric-and-push:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	strategy:
	matrix:
	ubuntu_versions : [
	20.04,
	22.04,
	]
	pkg_mgr : [
	apt,
	conda,
	]

	name: Build, Test, Publish
	steps:
	- name: Tag as ci-image-cache by default
	run: \|
	echo "tag=ci-image-cache" >> "$GITHUB_ENV"

	- name: Tag as latest
	if: ${{ github.repository_owner == 'cyclus' && github.ref == 'refs/heads/main' }}
	run: \|
	echo "tag=latest" >> "$GITHUB_ENV"

	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Log in to the Container registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

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

	- name: Build and Test Cymetric
	uses: docker/build-push-action@v5
	with:
	cache-from: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
	cache-to: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
	file: docker/Dockerfile
	push: true
	tags: ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.tag }}
	build-args: \|
	pkg_mgr=${{ matrix.pkg_mgr }}
	ubuntu_version=${{ matrix.ubuntu_versions }}
	cycamore_tag=latest

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