Add a new model to track services

Associated with a mini environment. This can also be used to store
customisations over the chosen revision of govuk-guix.

2 files changed, 59 insertions, 0 deletions

diff --git a/app/models/mini_environment.rb b/app/models/mini_environment.rb
index 712e3a0..77e2f1b 100644
--- a/app/models/mini_environment.rb
+++ b/app/models/mini_environment.rb
@@ -49,6 +49,8 @@ class MiniEnvironment < ApplicationRecord
   belongs_to :govuk_guix_revision, class_name: 'GovukGuix::Revision'
   belongs_to :backend, polymorphic: true
 
+  has_many :services, class_name: 'MiniEnvironmentService', dependent: :destroy
+
   def enqueued_terraform_jobs
     Que.execute("SELECT * FROM que_jobs WHERE args->>0 = '#{id}'")
   end
diff --git a/app/models/mini_environment_service.rb b/app/models/mini_environment_service.rb
new file mode 100644
index 0000000..73aa8aa
--- /dev/null
+++ b/app/models/mini_environment_service.rb
@@ -0,0 +1,57 @@
+# GOV.UK Mini Environment Admin
+# Copyright © 2018  Christopher Baines <mail@cbaines.net>
+#
+# This file is part of the GOV.UK Mini Environment Admin.
+#
+# The GOV.UK Mini Environment Admin is free software: you can
+# redistribute it and/or modify it under the terms of the GNU Affero
+# General Public License as published by the Free Software Foundation,
+# either version 3 of the License, or (at your option) any later
+# version.
+#
+# The GOV.UK Mini Environment Admin is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public
+# License along with the GOV.UK Mini Environment Admin.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+# == Schema Information
+#
+# Table name: mini_environment_services
+#
+#  id                  :integer          not null, primary key
+#  name                :string
+#  revision            :string
+#  mini_environment_id :integer
+#  created_at          :datetime         not null
+#  updated_at          :datetime         not null
+#
+
+class MiniEnvironmentService < ApplicationRecord
+  belongs_to :mini_environment
+
+  def customised?
+    service = mini_environment
+                .govuk_guix_revision
+                .all_available_services
+                .find do |s|
+
+      s['name'] == name
+    end
+
+    Rails.logger.info service
+
+    service['package']['version'] != revision
+  end
+
+  def build_argument_string
+    if customised?
+      "#{name}@#{revision}"
+    else
+      name
+    end
+  end
+end