server list looks like something

web/db/migrate/20160220084417_create_servers.rb

@@ -0,0 +1,12 @@
+class CreateServers < ActiveRecord::Migration
+  def change
+    create_table :servers do |t|
+      t.string :name, null: false
+      t.string :namehash, null: false
+      t.integer :operating_system_id, null: false
+      t.boolean :initialized, null: false, default: false
+      t.string :hostname
+      t.timestamps null: false
+    end
+  end
+end

web/db/migrate/20160220091225_create_operating_systems.rb

@@ -0,0 +1,8 @@
+class CreateOperatingSystems < ActiveRecord::Migration
+  def change
+    create_table :operating_systems do |t|
+      t.string :name, null: false
+      t.timestamps null: false
+    end
+  end
+end

web/db/schema.rb

@@ -0,0 +1,30 @@
+# encoding: UTF-8
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your
+# database schema. If you need to create the application database on another
+# system, you should be using db:schema:load, not running all the migrations
+# from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 20_160_220_091_225) do
+  create_table 'operating_systems', force: :cascade do |t|
+    t.string   'name',       null: false
+    t.datetime 'created_at', null: false
+    t.datetime 'updated_at', null: false
+  end
+
+  create_table 'servers', force: :cascade do |t|
+    t.string   'name',                                null: false
+    t.string   'namehash',                            null: false
+    t.integer  'operating_system_id',                 null: false
+    t.boolean  'initialized', default: false, null: false
+    t.string   'hostname'
+    t.datetime 'created_at',                          null: false
+    t.datetime 'updated_at',                          null: false
+  end
+end