service_create.rb
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service_create.rb
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	#!/opt/puppetlabs/puppet/bin/ruby
	# frozen_string_literal: true

	require 'json'
	require 'open3'
	require 'puppet'

	def service_create(image, replicas, expose, env, command, extra_params, service, detach)
	cmd_string = 'docker service create'
	if extra_params.is_a? Array
	extra_params.each do \|param\|
	cmd_string += " #{param}"
	end
	end
	cmd_string += " --name #{service}" unless service.nil?
	cmd_string += " --replicas #{replicas}" unless replicas.nil?
	cmd_string += " --publish #{expose}" unless expose.nil?
	if env.is_a? Hash
	env.each do \|key, value\|
	cmd_string += " --env #{key}='#{value}'"
	end
	end

	if command.is_a? Array
	cmd_string += command.join(' ')
	elsif command && command.to_s != 'undef'
	cmd_string += command.to_s
	end

	cmd_string += ' -d' unless detach.nil?
	cmd_string += " #{image}" unless image.nil?

	stdout, stderr, status = Open3.capture3(cmd_string)
	raise Puppet::Error, "stderr: '#{stderr}'" if status != 0
	stdout.strip
	end

	params = JSON.parse(STDIN.read)
	image = params['image']
	replicas = params['replicas']
	expose = params['expose']
	env = params['env']
	command = params['command']
	extra_params = params['extra_params']
	service = params['service']
	detach = params['detach']

	begin
	result = service_create(image, replicas, expose, env, command, extra_params, service, detach)
	puts result
	exit 0
	rescue Puppet::Error => e
	puts(status: 'failure', error: e.message)
	exit 1
	end