Add Ingredient model to demonstrate deployment of update

This commit adds an additional model to the application for the
purpose of showing how we would go about deploying an application
update to our app that is running in a Kubernetes cluster. We address
the application update portion and also the database migration portion.

app/models/ingredient.rb

@@ -0,0 +1,2 @@
+class Ingredient < ApplicationRecord
+end

app/views/welcome/show.html.erb

@@ -1 +1,4 @@
 <h1>Welcome</h1>
+
+<p>Existing Recipes: <%= Recipe.count %></p>
+<p>Unique Ingredients: <%= Ingredient.count %></p>

config/application.rb

@@ -23,6 +23,9 @@ class Application < Rails::Application
 
     config.generators do |g|
       g.test_framework :minitest, spec: true
+      g.helper false
+      g.javascript false
+      g.stylesheet false
     end
   end
 end

db/migrate/20170425120709_create_ingredients.rb

@@ -0,0 +1,17 @@
+class CreateIngredients < ActiveRecord::Migration[5.0]
+  def up
+    create_table :ingredients do |t|
+      t.string :name
+
+      t.timestamps
+    end
+
+    Ingredient.create(name: "Olives")
+    Ingredient.create(name: "lettuce")
+    Ingredient.create(name: "Thyme")
+  end
+
+  def down
+    drop_table :ingredients
+  end
+end

db/schema.rb

@@ -10,11 +10,17 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20161205100045) do
+ActiveRecord::Schema.define(version: 20170425120709) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "ingredients", force: :cascade do |t|
+    t.string   "name"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
   create_table "meal_plans", force: :cascade do |t|
     t.date     "start_date", null: false
     t.date     "end_date",   null: false

deployments/mealplan.yml

@@ -13,7 +13,7 @@ spec:
     spec:
       containers:
         - name: mealplan
-          image: us.gcr.io/mealplan-165022/mealplan:1.0.0
+          image: us.gcr.io/mealplan-165022/mealplan:1.1.0
           ports:
             - name: rails
               containerPort: 3000

docker-compose.yml

@@ -9,7 +9,7 @@ services:
     image: postgres
     env_file: .env
     volumes:
-      - db-data:/var/lib/postgresql/db-data
+      - db-data:/var/lib/postgresql/data
 
   app:
     build: .

script/start

@@ -6,6 +6,7 @@ fi
 
 if [[ $RAILS_ENV == "production" ]]; then
   rake assets:precompile
+  rake db:migrate
   mkdir -p /usr/share/nginx/html
   cp -R public/* /usr/share/nginx/html
   mkdir -p /etc/nginx/conf.d/

test/factories/ingredients.rb

@@ -0,0 +1,5 @@
+FactoryGirl.define do
+  factory :ingredient do
+    name "MyString"
+  end
+end

test/models/ingredient_test.rb

@@ -0,0 +1,9 @@
+require "test_helper"
+
+describe Ingredient do
+  let(:ingredient) { Ingredient.new }
+
+  it "must be valid" do
+    value(ingredient).must_be :valid?
+  end
+end