Add download system information button

app/controllers/misc_controller.rb

@@ -1,4 +1,5 @@
 require "fluent/version"
+require "zip"
 
 class MiscController < ApplicationController
   after_action :update!, only: [:update_fluentd_ui]
@@ -31,6 +32,28 @@ class MiscController < ApplicationController
     end
   end
 
+  def download_info
+    fluentd = Fluentd.instance
+    path = Rails.root.join("tmp/system_info.zip")
+    File.unlink(path) if File.exists?(path)
+
+    Zip::File.open(path, Zip::File::CREATE) do |zip|
+      zip.get_output_stream('fluentd.log') {|f| f.puts fluentd.agent.log }
+      zip.add("fluentd-ui.log", Rails.root.join("log/#{Rails.env}.log"))
+      zip.get_output_stream('env.txt') do |f|
+        ENV.to_a.each do |(key, value)|
+          f.puts "#{key}=#{value}"
+        end
+      end
+      zip.get_output_stream('versions.txt') do |f|
+        f.puts "ruby: #{RUBY_DESCRIPTION}"
+        f.puts "fluentd: #{Fluent::VERSION}"
+        f.puts "fluentd-ui: #{FluentdUI::VERSION}"
+      end
+    end
+    send_file path
+  end
+
   private
 
   def update!

app/views/misc/information.html.haml

@@ -8,6 +8,12 @@
           = t('.update_fluentd_ui', version: FluentdUI.latest_version)
         = t('.update_fluentd_ui_caution')
 
+.row
+  .col-lg-12
+    %p
+      =link_to misc_download_info_path, class: "btn btn-default" do
+        = t('.download_system_information')
+
 .row
   %div.col-lg-6
     %div.panel.panel-default

config/locales/translation_en.yml

@@ -189,6 +189,7 @@ en:
       page_title: System Information
       update_fluentd_ui: Update fluentd-ui
       update_fluentd_ui_caution: "Note: fluentd will not restart"
+      download_system_information: Download system information
     update_fluentd_ui:
       <<: *misc_common
       update_title: Updating fluentd-ui

config/locales/translation_ja.yml

@@ -185,6 +185,7 @@ ja:
       page_title: システム情報
       update_fluentd_ui: fluentd-uiを更新
       update_fluentd_ui_caution: ※fluentdは再起動されません
+      download_system_information: システム情報をダウンロード
     update_fluentd_ui:
       <<: *misc_common
       update_title: fluentd-ui 更新

config/routes.rb

@@ -39,6 +39,7 @@ Rails.application.routes.draw do
   get "misc/information"
   post "misc/update_fluentd_ui"
   get "misc/upgrading_status"
+  get "misc/download_info"
 
   namespace :polling do
     get "alerts"