Merge pull request #20 from alces-software/develop

Overware 1.1

Author: atoghill

.env.example

@@ -5,6 +5,8 @@ export APPLICATION_NAME=ABC # Optionally set for development
 # Set the following regardless of environment
 export SSH_KEYS_FILE_PATH=ABC
 export APPLIANCE_INFORMATION_FILE_PATH=ABC
+export NETWORK_VARIABLES_FILE_PATH=ABC
+export NETWORK_SETUP_SCRIPT_FILE_PATH=ABC
 
 # Set the following in production
 #SECRET_KEY_BASE=ABC

Gemfile

@@ -45,7 +45,7 @@ gem 'turbolinks', '~> 5'
 gem 'commonmarker'
 gem 'dotenv-rails'
 
-gem 'bootstrap', '~> 4.1.2'
+gem 'bootstrap', '~> 4.3.1'
 gem 'jquery-rails' # Required for Bootstrap.
 
 group :development, :test do

Gemfile.lock

@@ -52,16 +52,16 @@ GEM
       io-like (~> 0.3.0)
     arel (9.0.0)
     ast (2.4.0)
-    autoprefixer-rails (9.4.2)
+    autoprefixer-rails (9.4.9)
       execjs
     bcrypt (3.1.12)
     bindex (0.5.0)
     bootsnap (1.3.2)
       msgpack (~> 1.0)
-    bootstrap (4.1.3)
-      autoprefixer-rails (>= 6.0.3)
-      popper_js (>= 1.12.9, < 2)
-      sass (>= 3.5.2)
+    bootstrap (4.3.1)
+      autoprefixer-rails (>= 9.1.0)
+      popper_js (>= 1.14.3, < 2)
+      sassc-rails (>= 2.0.0)
     builder (3.2.3)
     byebug (10.0.2)
     capybara (3.12.0)
@@ -270,6 +270,15 @@ GEM
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
       tilt (>= 1.1, < 3)
+    sassc (2.0.0)
+      ffi (~> 1.9.6)
+      rake
+    sassc-rails (2.1.0)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     selenium-webdriver (3.141.0)
       childprocess (~> 0.5)
       rubyzip (~> 1.2, >= 1.2.2)
@@ -313,7 +322,7 @@ PLATFORMS
 
 DEPENDENCIES
   bootsnap (>= 1.1.0)
-  bootstrap (~> 4.1.2)
+  bootstrap (~> 4.3.1)
   byebug
   capybara (>= 2.15)
   chromedriver-helper

README.md

@@ -37,6 +37,10 @@
 
    8.2. Load schema `RAILS_ENV=production bin/rails db:schema:load`
 
+   8.3. Run database migrations `RAILS_ENV=production bin/rails db:migrate`
+
+   8.4. Run data migrations `RAILS_ENV=production bin/rails data:migrate`
+
 9. Create an initial user
 
    9.1. Enter the rails console using `RAILS_ENV=production rails c`
@@ -50,3 +54,33 @@
 
 12. Access the application at its public IP and use the details for the user
     you created in step 7 to log in
+
+## Bolt-Ons
+
+A Bolt-On is an optional part of the web interface configuration. These can be enabled on an individual basis in one of two ways:
+
+1. Within the `rails-admin` interface
+
+   1.1. Navigate to the `Bolt ons` section
+
+   For each Bolt-On you wish to enable:
+
+   1.2. Click the edit icon next to the database entry
+
+   1.3. Click the `Enabled` checkbox
+
+   1.4. Save the entry
+
+2. Via the rails console
+
+   2.1. Enter the rails console using `RAILS_ENV=production rails c`
+
+   For each Bolt-On you wish to enable:
+
+   2.2. Enable using:
+
+    ```
+      bolt_on = BoltOn.find_by(name: '<NAME_OF_BOLT_ON>')
+      bolt_on.enabled = true
+      bolt_on.save!
+    ```

app/assets/stylesheets/application.scss

@@ -17,7 +17,7 @@
 @import 'bootstrap';
 @import 'font-awesome';
 
-form {
+.styled-form {
   border-radius: 5px;
   background-color: #f2f2f2;
   padding: 20px;

app/controllers/application_controller.rb

@@ -7,4 +7,12 @@ def authenticate(params)
       params[:session][:password]
     )
   end
+
+  def run_shell_command(command)
+    system(command, out: File::NULL)
+  end
+
+  def bolt_on_enabled(name)
+    BoltOn.find_by(name: name).enabled?
+  end
 end

app/controllers/cluster_controller.rb

@@ -2,7 +2,45 @@ class ClusterController < ApplicationController
   require 'commonmarker'
 
   def index
-    file_data = IO.binread(Rails.application.config.appliance_information)
-    @content = CommonMarker.render_html(file_data, :DEFAULT, [:table])
+    #BoltOns
+    @vpn = bolt_on_enabled('VPN')
+
+    @content = appliance_information
+    @active = vpn_status
+  end
+
+  def restart
+    if run_shell_command("shutdown -r +1 'Reboot requested via web interface'")
+      flash[:success] = 'Restarting machine'
+    else
+      flash[:danger] = 'Encountered an error whilst trying to restart the machine'
+    end
+
+    redirect_to cluster_path
+  end
+
+  def stop
+    if run_shell_command("shutdown -h +1 'Shutdown requested via web interface'")
+      flash[:success] = 'Stopping the machine'
+    else
+      flash[:danger] = 'Encountered an error whilst trying to stop the machine'
+    end
+
+    redirect_to cluster_path
+  end
+
+  private
+
+  def appliance_information
+    file = Rails.application.config.appliance_information
+    file_data = IO.binread(file) if File.exist? file
+
+    if file_data
+      CommonMarker.render_html(file_data, :DEFAULT, [:table])
+    end
+  end
+
+  def vpn_status
+    run_shell_command("systemctl is-active --quiet openvpn@flightcenter")
   end
 end

app/controllers/network_controller.rb

@@ -0,0 +1,54 @@
+class NetworkController < ApplicationController
+
+  delegate :network_variables,
+           :network_setup,
+           to: 'Rails.application.config'
+
+  def index
+    file_lines = file_data
+    @internal_vars = file_lines.select { |l| l.include? "INTERNAL" }
+    @external_vars = file_lines.select { |l| l.include? "EXTERNAL" }
+  end
+
+  def edit
+    tmp = Tempfile.new("temp_vars")
+
+    file_data.each do |line|
+      if line.include?("INTERNAL") || line.include?("EXTERNAL")
+        content = line.split("export")[1].split("=")
+        variable = content[0]
+        tail = content[1].split('"')[2]
+
+        line = "export#{variable}=\"#{network_params[variable]}\"#{tail}"
+      end
+
+      tmp << line
+    end
+
+    tmp.close
+
+    if run_shell_command("cp --no-preserve=mode,ownership #{tmp.path} #{network_variables}")
+      if run_shell_command("alces_RERUN=true bash #{network_setup}")
+        flash[:success] = 'Network configuration successfully modified'
+      else
+        flash[:danger] = 'Encountered an error whilst trying to run the setup script'
+      end
+    else
+      flash[:danger] = 'Encountered an error whilst trying to modify the network configuration'
+    end
+
+    tmp.delete
+
+    redirect_to network_path
+  end
+
+  private
+
+  def network_params
+    params[:network]
+  end
+
+  def file_data
+    IO.binread(Rails.application.config.network_variables).lines.map
+  end
+end

app/controllers/sessions_controller.rb

@@ -8,7 +8,7 @@ def create
     user = User.find_by(username: params[:session][:username])
     if User.authenticate(params[:session][:username], params[:session][:password])
       sign_in(user)
-      redirect_to cluster_index_path
+      redirect_to cluster_path
     else
       flash.now[:danger] = 'Invalid username or password'
       render 'new'

app/controllers/vpn_controller.rb

@@ -0,0 +1,34 @@
+class VpnController < ApplicationController
+  def start
+    return unless bolt_on_enabled('VPN')
+    if run_shell_command("systemctl start openvpn@flightcenter")
+      flash[:success] = 'VPN started'
+    else
+      flash[:danger] = 'Enountered an error whilst trying to start the VPN'
+    end
+
+    redirect_to cluster_path
+  end
+
+  def stop
+    return unless bolt_on_enabled('VPN')
+    if run_shell_command("systemctl stop openvpn@flightcenter")
+      flash[:success] = 'VPN stopped'
+    else
+      flash[:danger] = 'Encountered an error whilst trying to stop the VPN'
+    end
+
+    redirect_to cluster_path
+  end
+
+  def restart
+    return unless bolt_on_enabled('VPN')
+    if run_shell_command("systemctl restart openvpn@flightcenter")
+      flash[:success] = 'VPN restarted'
+    else
+      flash[:danger] = 'Encountered an error whilst trying to restart the VPN'
+    end
+
+    redirect_to cluster_path
+  end
+end