Poise Subresources

apache_tomcat_config.rb

require 'poise'

module ApacheTomcatConfig
  class Resource < Chef::Resource
    include Poise(container: true, container_namespace: false)
    poise_subresource :apache_tomcat_instance

    provides :apache_tomcat_config
    actions :create

    attribute :name, equal_to: %w(server web context)
    attribute :config,
              option_collector: true,
              template: true,
              default_source: lazy { "#{name}.xml.erb" },
              default_options: { include_defaults: true }
  end

  class Provider < Chef::Provider
    include Poise

    provides :apache_tomcat_config

    def action_create
      notifying_block do
        file "#{instance_config_dir}/#{new_resource.name}.xml" do
          owner new_resource.parent.user
          group new_resource.parent.group
          mode '0640'
          content new_resource.config_content
        end
      end
    end

    def instance_config_dir
      "#{new_resource.parent.instance_dir}/conf"
    end
  end
end

apache_tomcat_entity.rb

require 'poise'

module ApacheTomcatEntity
  class Resource < Chef::Resource
    include Poise
    poise_subresource :apache_tomcat_config

    provides :apache_tomcat_entity
    actions :create

    attribute :name, kind_of: String
    attribute :config,
              option_collector: true,
              template: true,
              default_source: lazy { "#{name}.xml.erb" }
  end

  class Provider < Chef::Provider
    include Poise

    provides :apache_tomcat_entity

    def action_create
      notifying_block do
        file "#{instance_config_dir}/#{new_resource.name}.xml" do
          owner new_resource.parent.parent.user
          group new_resource.parent.parent.group
          mode '0640'
          content new_resource.config_content
        end
      end
    end

    def instance_config_dir
      "#{new_resource.parent.parent.instance_dir}/conf"
    end
  end
end

apache_tomcat_instance.rb

require 'poise'

module ApacheTomcatInstance
  class Resource < Chef::Resource
    include Poise(container: true, container_namespace: false)

    provides :apache_tomcat_instance
    actions :create

    attribute :name, kind_of: String
    attribute :prefix_root, kind_of: String, default: '/opt/tomcat'
    attribute :user, kind_of: String, default: 'tomcat'
    attribute :group, kind_of: String, default: 'tomcat'
    attribute :catalina_home,
              kind_of: String,
              default: '/usr/share/tomcat'
    attribute :setenv,
              option_collector: true,
              template: true,
              default_source: 'setenv.sh.erb'
    attribute :bundle_webapps_enabled,
              kind_of: Array,
              default: []
    attribute :bundle_webapps_managed,
              kind_of: Array,
              default: []

    def instance_dir
      "#{prefix_root}/#{name}"
    end
  end

  class Provider < Chef::Provider
    include Poise

    provides :apache_tomcat_instance

    def action_create
      ...
    end
    ...
  end
end

test_recipe.rb

apache_tomcat_instance 'instance1' do
  apache_tomcat_config 'web' do
    config_options do
      include_defaults false
      include_default_mime_types true
    end

    apache_tomcat_entity 'engine' do
      config_options do
        include_defaults false
      end
    end
  end
end