Add custom resource for installing the Web UI.

Fixes #297.

This was definitely something that was missed from 2.0.

libraries/consul_config.rb

@@ -82,7 +82,7 @@ class ConsulConfig < Chef::Resource
       attribute(:statsite_addr, kind_of: String)
       attribute(:syslog_facility, kind_of: String)
       attribute(:ui, equal_to: [true, false], default: false)
-      attribute(:ui_dir, kind_of: String)
+      attribute(:ui_dir, kind_of: String, default: lazy { '/var/lib/consul/ui' })
       attribute(:verify_incoming, equal_to: [true, false], default: false)
       attribute(:verify_outgoing, equal_to: [true, false], default: false)
       attribute(:verify_server_hostname, equal_to: [true, false], default: false)

libraries/consul_installation_git.rb

@@ -63,6 +63,10 @@ def action_remove
         end
       end
 
+      def consul_install_path
+        options[:git_path]
+      end
+
       def consul_program
         ::File.join(options[:git_path], 'bin', 'consul')
       end

libraries/consul_installation_package.rb

@@ -56,7 +56,7 @@ def action_remove
       end
 
       def consul_program
-        options.fetch(:consul_program, '/usr/local/bin/consul')
+        options.fetch(:program, '/usr/local/bin/consul')
       end
     end
   end

libraries/consul_installation_webui.rb

@@ -0,0 +1,99 @@
+#
+# Cookbook: consul
+# License: Apache 2.0
+#
+# Copyright 2014-2016, Bloomberg Finance L.P.
+#
+require 'poise'
+
+module ConsulCookbook
+  module Provider
+    # A `consul_installation` provider which manages Consul WebUI
+    # installation from remote source URL.
+    # @action create
+    # @action remove
+    # @provides consul_installation
+    # @example
+    #   consul_installation '0.5.0'
+    # @since 2.0
+    class ConsulInstallationWebui < Chef::Provider
+      include Poise(inversion: :consul_installation)
+      provides(:webui)
+      inversion_attribute('consul')
+
+      # Set the default inversion options.
+      # @return [Hash]
+      # @api private
+      def self.default_inversion_options(node, resource)
+        archive_basename = binary_basename(node, resource)
+        super.merge(
+          version: resource.version,
+          archive_url: default_archive_url % { version: resource.version, basename: archive_basename },
+          archive_basename: archive_basename,
+          archive_checksum: binary_checksum(node, resource),
+          extract_to: '/opt/consul-webui',
+          symlink_to: '/var/lib/consul/ui'
+        )
+      end
+
+      def action_create
+        archive_url = options[:archive_url] % {
+          version: options[:version],
+          basename: options[:archive_basename]
+        }
+
+        notifying_block do
+          directory ::File.join(options[:extract_to], new_resource.version) do
+            recursive true
+          end
+
+          zipfile options[:archive_basename] do
+            path ::File.join(options[:extract_to], new_resource.version)
+            source archive_url
+            checksum options[:archive_checksum]
+            not_if { ::File.exist?(::File.join(path, 'index.html')) }
+            notifies :create, "link[#{options[:symlink_to]}]", :immediately
+          end
+
+          link options[:symlink_to] do
+            to ::File.join(options[:extract_to], new_resource.version)
+            action :nothing
+          end
+        end
+      end
+
+      def action_remove
+        notifying_block do
+          directory ::File.join(options[:extract_to], new_resource.version) do
+            recursive true
+            action :delete
+          end
+        end
+      end
+
+      def consul_program
+        nil
+      end
+
+      def self.default_archive_url
+        "https://releases.hashicorp.com/consul/%{version}/%{basename}" # rubocop:disable Style/StringLiterals
+      end
+
+      def self.binary_basename(node, resource)
+        ['consul', resource.version, 'web_ui'].join('_').concat('.zip')
+      end
+
+      def self.binary_checksum(_node, resource)
+        case resource.version
+        when '0.5.0' then '0081d08be9c0b1172939e92af5a7cf9ba4f90e54fae24a353299503b24bb8be9'
+        when '0.5.1', '0.5.2' then 'ad883aa52e1c0136ab1492bbcedad1210235f26d59719fb6de3ef6464f1ff3b1'
+        when '0.6.0' then '73c5e7ee50bb4a2efe56331d330e6d7dbf46335599c028344ccc4031c0c32eb0'
+        when '0.6.1' then 'afccdd540b166b778c7c0483becc5e282bbbb1ee52335bfe94bf757df8c55efc'
+        when '0.6.2' then 'f144377b8078df5a3f05918d167a52123089fc47b12fc978e6fb375ae93afc90'
+        when '0.6.3' then '93bbb300cacfe8de90fb3bd5ede7d37ae6ce014898edc520b9c96a676b2bbb72'
+        when '0.6.4' then '5f8841b51e0e3e2eb1f1dc66a47310ae42b0448e77df14c83bb49e0e0d5fa4b7'
+        end
+      end
+    end
+  end
+end

metadata.rb

@@ -4,7 +4,7 @@
 license 'Apache 2.0'
 description 'Application cookbook which installs and configures Consul.'
 long_description 'Application cookbook which installs and configures Consul.'
-version '2.0.0'
+version '2.1.0'
 
 recipe 'consul::default', 'Installs and configures the Consul service.'
 recipe 'consul::client_gem', 'Installs the Consul Ruby client as a gem.'

recipes/default.rb

@@ -55,6 +55,13 @@
   notifies :reload, "consul_service[#{service_name}]", :delayed
 end
 
+consul_installation "Consul WebUI: #{node['consul']['version']}" do
+  provider :webui
+  version node['consul']['version']
+  options symlink_to: config.ui_dir if config.ui_dir
+  only_if { config.ui == true }
+end
+
 install = consul_installation node['consul']['version'] do |r|
   if node['consul']['installation']
     node['consul']['installation'].each_pair { |k, v| r.send(k, v) }