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finish up flask/docker on mac tutorial
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‎content/pages/08-web-app-deployment/34-docker.markdown‎

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@@ -43,15 +43,16 @@ on Amazon Web Services, Google Compute Engine, Linode, Rackspace or elsewhere.
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* [Andrew Baker](https://github.com/atbaker) presented a fantastic tutorial
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at [PyOhio](http://andrewtorkbaker.com/pyohio-docker-101-tutorial) on
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[beginner and advanced Docker usage](https://github.com/atbaker/docker-tutorial).
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Andrew also wrote the article [what containers can do for you](http://radar.oreilly.com/2015/01/what-containers-can-do-for-you.html).
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[beginner and advanced Docker usage](https://github.com/atbaker/docker-tutorial).
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Andrew also wrote the article
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[what containers can do for you](http://radar.oreilly.com/2015/01/what-containers-can-do-for-you.html).
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* [Docker curriculum](http://prakhar.me/docker-curriculum/) is a detailed
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tutorial created by a developer to show the exact steps for deploying an
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application that relies on [Elasticsearch](https://www.elastic.co/).
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* [How to install Docker and get started](https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-getting-started)
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provides a walkthrough for Ubuntu 13.04 for installing and beginning to
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* [How To Install and Use Docker on Ubuntu 16.04](https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-16-04)
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provides a walkthrough for Ubuntu 16.04 for installing and beginning to
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use Docker for development.
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* [It Really is the Future](http://blog.circleci.com/it-really-is-the-future/)

‎content/posts/180309-flask-docker-macos.markdown‎

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meta: Learn how to set up and develop a new Flask web application within a Docker container.
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category: post
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date: 2018-03-09
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modified: 2018-03-09
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modified: 2018-03-14
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newsletter: False
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headerimage: /img/180309-flask-docker/header.jpg
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headeralt: Flask, Docker and Apple logos, copyright their respective owners.
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Adding [Docker](/docker.html) to your [Python](/why-use-python.html) and
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[Flask](/flask.html) [development environment's](/development-environments.html)
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workflow can be a bit confusing when you are just getting started with
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containers. Let's quickly get Docker installed and configured for developing
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Flask web applications on your local system.
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[Flask](/flask.html) [development environment](/development-environments.html)
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can be confusing when you are just getting started with containers. Let's
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quickly get Docker installed and configured for developing Flask web
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applications on your local system.
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## Our Tools
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This tutorial is written for [Python 3](/python-2-or-3.html). It may work with
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This tutorial is written for [Python 3](/python-2-or-3.html). It will work with
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Python 2 but I have not tested it with the
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[soon-to-be deprecated 2.7 version](https://pythonclock.org/).
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The above `docker build` file uses the `-t` flag to tag the image with
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the name of `flaskdock`.
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If the build worked successfully we can see the image in with the
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`docker image ls` command. Give that a try now:
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```
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docker image ls
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```
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We should then see our tag name in the images list:
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```
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REPOSITORY TAG IMAGE ID CREATED SIZE
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flaskdock latest 24045e0464af 2 minutes ago 165MB
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```
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Our image is ready to load up as a container so we can write a quick
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Flask app that we will use to test our environment by running it within
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the container.
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## Coding A Simple Flask app
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Time to put together a super simple "Hello, World!" Flask web app to test
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running Python code within our Docker container. Within the current
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project directory, create a file named `app.py` with the following
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contents:
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project directory, create a file named `app.py` with the following contents:
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```python
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from flask import Flask, Response
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app.run("0.0.0.0", port=80, debug=True)
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```
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The above 7 lines of code (not counting blank PEP8-compliant lines) allow our
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application to return a simple message when run with the Flask development
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server.
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The above 7 lines of code (not counting blank PEP8-compliant lines) in
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[app.py](https://github.com/fullstackpython/blog-code-examples/blob/master/docker-flask-mac/app.py)
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allow our application to return a simple message when run with the
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Flask development server.
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Save the file and we can give the code a try.
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<img src="/img/180309-flask-docker/flask-app-response.png" width="100%"
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class="shot rnd" alt="Flask app responding to requests from within a Docker container.">
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Everything worked when you see a simple text-based HTTP response like what
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is shown above in the screenshot of my Chrome browser.
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## What's Next?
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We just installed Docker and configured a Flask application to run inside a
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container. That is just the beginning of how you can integrate Docker into
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your workflow. Next up take a look at the [Docker](/docker.html) and
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your workflow. I strongly recommend reading the
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[Django with PostgreSQL quickstart](https://docs.docker.com/compose/django/)
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that will introduce you to Docker Swarm as well as the core Docker container
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service.
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Next up take a look at the [Docker](/docker.html) and
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[deployment](/deployment.html) pages for more related tutorials.
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Questions? Let me know via a GitHub

‎redirects/develop-flask-web-apps-docker-containers-macos.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="refresh" content="0; url=https://www.fullstackpython.com/blog/develop-flask-web-apps-docker-containers-macos.html">
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</head>
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<body>
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</body>
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</html>

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