stack.pp
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	# @summary
	# deploys Docker stacks or compose v3
	#
	# @param ensure
	# This ensures that the stack is present or not.
	#
	# @param stack_name
	# The name of the stack that you are deploying
	#
	# @param bundle_file
	# Path to a Distributed Application Bundle file
	# Please note this is experimental
	#
	# @param prune
	# Prune services that are no longer referenced
	#
	# @param resolve_image
	# Query the registry to resolve image digest and supported platforms
	# Only accepts ("always"\|"changed"\|"never")
	#
	# @param with_registry_auth
	# Send registry authentication details to Swarm agents
	#
	# @param compose_files
	define docker::stack(
	Optional[Enum[present,absent]] $ensure = 'present',
	Optional[String] $stack_name = undef,
	Optional[String] $bundle_file = undef,
	Optional[Array] $compose_files = undef,
	Optional[Boolean] $prune = false,
	Optional[Boolean] $with_registry_auth = false,
	Optional[Enum['always','changed','never']] $resolve_image = undef,
	) {
	include docker::params

	deprecation('docker::stack','The docker stack define type will be deprecated in a future release. Please migrate to the docker_stack type/provider.')

	$docker_command = "${docker::params::docker_command} stack"

	if $facts['os']['family'] == 'windows' {
	$exec_path = [ 'C:/Program Files/Docker/', ]
	$check_stack = '$info = docker stack ls \| select-string -pattern web
	if ($info -eq $null) { Exit 1 } else { Exit 0 }'
	$provider = 'powershell'
	} else {
	$exec_path = [ '/bin', '/usr/bin', ]
	$check_stack = "${docker_command} ls \| grep ${stack_name}"
	$provider = undef
	}

	if $ensure == 'present' {
	$docker_stack_flags = docker_stack_flags (
	{
	stack_name => $stack_name,
	bundle_file => $bundle_file,
	compose_files => $compose_files,
	prune => $prune,
	with_registry_auth => $with_registry_auth,
	resolve_image => $resolve_image,
	}
	)

	$exec_stack = "${docker_command} deploy ${docker_stack_flags} ${stack_name}"

	exec { "docker stack create ${stack_name}":
	command => $exec_stack,
	unless => $check_stack,
	path => $exec_path,
	provider => $provider,
	}
	}

	if $ensure == 'absent' {
	exec { "docker stack destroy ${stack_name}":
	command => "${docker_command} rm ${stack_name}",
	onlyif => $check_stack,
	path => $exec_path,
	provider => $provider,
	}
	}
	}

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