Docker Compose in 12 Minutes

jakewright · jakewright · commit 62324876013a · 2017-03-13T22:56:09.000Z
diff --git a/LICENSE.md b/LICENSE.md
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Jake Wright
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+# Tutorials
+
+<img align="right" src="http://i.giphy.com/QHE5gWI0QjqF2.gif" width="260 "/>
+
+This repository contains the source code from the YouTube tutorials at http://youtube.com/jaketvee.
diff --git a/docker/02-docker-compose/README.md b/docker/02-docker-compose/README.md
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+# Docker Compose in 12 Minutes
+
+Docker compose is a tool for defining and running multi-container Docker applications. In this tutorial I show you the basics of Docker Compose, including how to write a `docker-compose.yml` file for a simple two-container e-commerce style website.
+
+[Watch Docker Compose in 12 Minutes on YouTube](https://youtu.be/Qw9zlE3t8Ko)
+
+# Getting started
+
+This directory contains the source code from the tutorial. To run the application, `cd` into this directory and run `docker-compose up`. The product service and the website will start (if necessary, docker-compose will automatically build the containers).
diff --git a/docker/02-docker-compose/docker-compose.yml b/docker/02-docker-compose/docker-compose.yml
@@ -0,0 +1,18 @@
+version: '3'
+
+services:
+  product-service:
+    build: ./product
+    volumes:
+      - ./product:/usr/src/app
+    ports:
+      - 5001:80
+
+  website:
+    image: php:apache
+    volumes:
+      - ./website:/var/www/html
+    ports:
+      - 5000:80
+    depends_on:
+      - product-service
diff --git a/docker/02-docker-compose/product/Dockerfile b/docker/02-docker-compose/product/Dockerfile
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+FROM python:3-onbuild
+COPY . /usr/src/app
+CMD ["python", "api.py"]
diff --git a/docker/02-docker-compose/product/api.py b/docker/02-docker-compose/product/api.py
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+# Product Service
+
+# Import framework
+from flask import Flask
+from flask_restful import Resource, Api
+
+# Instantiate the app
+app = Flask(__name__)
+api = Api(app)
+
+class Product(Resource):
+    def get(self):
+        return {
+            'products': ['Ice cream', 'Chocolate', 'Fruit', 'Eggs']
+        }
+
+# Create routes
+api.add_resource(Product, '/')
+
+# Run the application
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=80, debug=True)
diff --git a/docker/02-docker-compose/product/requirements.txt b/docker/02-docker-compose/product/requirements.txt
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+Flask==0.12
+flask-restful==0.3.5
diff --git a/docker/02-docker-compose/website/index.php b/docker/02-docker-compose/website/index.php
@@ -0,0 +1,23 @@
+<html>
+    <head>
+        <title>My Shop</title>
+    </head>
+
+    <body>
+        <h1>Welcome to my shop</h1>
+        <ul>
+            <?php
+
+            $json = file_get_contents('http://product-service/');
+            $obj = json_decode($json);
+
+            $products = $obj->products;
+
+            foreach ($products as $product) {
+                echo "<li>$product</li>";
+            }
+
+            ?>
+        </ul>
+    </body>
+</html>

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+FROM python:3-onbuild`
	`2`	`+COPY . /usr/src/app`
	`3`	`+CMD ["python", "api.py"]`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+Flask==0.12`
	`2`	`+flask-restful==0.3.5`