Build and push the Montage 6 worker from CI #1

	# Builds the Montage 6 worker image, and publishes it when the change lands on
	# master. The image tag encodes the job-executor version (6.0-je1.4.1), so
	# merging a Renovate bump of its Makefile is what produces a new tag.
	#
	# The paths filter is what keeps montage5-worker out of scope: a change there
	# never triggers this workflow.

	name: montage6-worker

	on:
	push:
	branches: [ master ]
	paths:
	- 'worker-images/montage6-worker/**'
	- '.github/workflows/montage6-worker.yml'
	pull_request:
	branches: [ master ]
	paths:
	- 'worker-images/montage6-worker/**'
	- '.github/workflows/montage6-worker.yml'
	workflow_dispatch:
	inputs:
	push:
	description: 'Push the built image to Docker Hub'
	type: boolean
	default: false

	jobs:
	montage6-worker:
	runs-on: ubuntu-22.04
	defaults:
	run:
	working-directory: worker-images/montage6-worker
	env:
	DO_PUSH: ${{ github.event_name == 'push' \|\| inputs.push }}
	HAVE_DOCKERHUB: ${{ secrets.DOCKERHUB_USERNAME != '' }}
	steps:
	- uses: actions/checkout@v4

	# Log in before building: pulling montage-base counts against the
	# anonymous Docker Hub rate limit, which shared runners routinely exhaust.
	- name: Login to Docker Hub
	if: env.HAVE_DOCKERHUB == 'true'
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	- name: Build
	run: make image

	- name: Show built tags
	run: docker images 'hyperflowwms/montage-worker'

	- name: Push
	if: env.DO_PUSH == 'true' && env.HAVE_DOCKERHUB == 'true'
	run: make push

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