New setup command for bin/rmt-cli for issue #987

MANUAL.md

@@ -25,6 +25,12 @@ You can install and run this wizard like this:
   * `rmt-cli sync`:
     RMT comes with a preconfigured systemd timer to automatically get the latest product and repository data from the SUSE Customer Center over night.
     This command triggers the same synchronization instantly.
+
+  * `rmt-cli setup`:
+    As a part of the configuration of RMT, users can create and edit /etc/rmt.conf file to overwrite specific configurations for their need.
+    This requires manual work.
+    This command provides an interactive cli to the user to enter values such as SCC credentials, DB credentials and saves changes to /etc/rmt.conf
+    User can also choose to restart the server after config update from the cli itself.
 
   * `rmt-cli systems list`:
     Lists systems registered against RMT.

lib/rmt/cli/main.rb

@@ -33,6 +33,11 @@ def sync
   def version
     puts RMT::VERSION
   end
+
+  desc 'setup', _('Configure RMT')
+  def setup
+    RMT::CLI::Setup.new.start_setup
+  end
 
   map %w[--version -v] => :version
 

lib/rmt/cli/setup.rb

@@ -0,0 +1,72 @@
+require 'yaml'
+class RMT::CLI::Setup < RMT::CLI::Base
+  DESTINATION_PATH = '/etc/rmt.conf'.freeze
+  SOURCE_PATH = 'config/rmt.yml'.freeze
+  POSITIVE_FEEDBACK = %w[Y y].freeze
+
+  no_commands do
+    def copy_conf_if_not_exists
+      if File.exist?(DESTINATION_PATH)
+        puts "File already exists at #{DESTINATION_PATH}."
+      else
+        puts "Copying file from #{SOURCE_PATH} to #{DESTINATION_PATH} as #{DESTINATION_PATH} does not exists"
+        FileUtils.cp(SOURCE_PATH, DESTINATION_PATH)
+        puts "File copied to #{DESTINATION_PATH}."
+      end
+    end
+
+    def update_file(config_hash)
+      file_contents = File.read(DESTINATION_PATH)
+      file_data = YAML.load(file_contents)
+      file_data['scc']['username'] = config_hash[:scc_username]
+      file_data['scc']['password'] = config_hash[:scc_password]
+      file_data['database']['database'] = config_hash[:db_dbname]
+      file_data['database']['host'] = config_hash[:db_host]
+      file_data['database']['username'] = config_hash[:db_username]
+      file_data['database']['password'] = config_hash[:db_password]
+      File.write(DESTINATION_PATH, file_data.to_yaml)
+    end
+  end
+
+  def start_setup
+    puts 'We are setting up system'
+    copy_conf_if_not_exists
+    loop do
+      input = ask("Press enter/return to continue, else type 'exit' for exiting the cli")
+
+      case input
+      when 'exit'
+        break
+      else
+        config_hash = {}
+        config_hash[:scc_username] = ask('Enter SCC username, default is', default: 'root')
+        config_hash[:scc_password] = ask('Enter SCC password, default is ', default: 'example', echo: false)
+        puts "\n"
+        config_hash[:db_host] = ask('Enter database host, default is ', default: 'localhost')
+        config_hash[:db_username] = ask('Enter database username, default is ', default: 'rmt')
+        config_hash[:db_password] = ask('Enter database password, default is ', default: 'rmt', echo: false)
+        puts "\n"
+        config_hash[:db_dbname] = ask('Enter database dbname, default is ', default: 'rmt_development')
+
+        verify_data = ask("You have entered following data:\n
+            scc_username: #{config_hash[:scc_username]}\n
+            scc_password: ****\n
+            db_host: #{config_hash[:db_host]}\n
+            db_username: #{config_hash[:db_username]}\n
+            db_password: ****\n
+            db_dbname: #{config_hash[:db_dbname]}\n
+            Enter Y(y) to continue else press enter/return to restart entering values: ")
+        if POSITIVE_FEEDBACK.include?(verify_data)
+          update_file(config_hash)
+          puts 'Config updated, server restart is required using <systemctl restart rmt-server>'
+          restart_rmt = ask('Do you wish to restart rmt server? (Enter Y(y) for yes else press enter to skip restart')
+          if POSITIVE_FEEDBACK.include?(restart_rmt)
+            puts 'Restarting Server....'
+            `systemctl restart rmt-server`
+          end
+          break
+        end
+      end
+    end
+  end
+end