https://github.com/mkhuda/docker-flask-sample

Docker container with Python 2.7 and Flask (Sample from Get Started)
https://github.com/mkhuda/docker-flask-sample

docker flask python

Last synced: 3 months ago
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Docker container with Python 2.7 and Flask (Sample from Get Started)

• Host: GitHub
• URL: https://github.com/mkhuda/docker-flask-sample
• Owner: mkhuda
• License: gpl-3.0
• Created: 2017-10-21T17:43:45.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2017-10-22T07:07:00.000Z (over 8 years ago)
• Last Synced: 2025-02-23T07:06:32.189Z (over 1 year ago)
• Topics: docker, flask, python
• Language: Python
• Size: 62.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# docker-flask-sample

Docker container with Python 2.7 and Flask (Sample from Get Started)

![Alt text](images/docker-screenshot.png?raw=true "Web Screenshot")

This container was bringin from Docker Get Started Page. I added feature for checking and parsing user agent of visitors.

## Libs Imported

- Flask

- pyyaml

- ua-parser

- user-agents

## Usages

1. Clone this image

2. Run `docker build -t  .` (ended with dot)

3. Run `docker images` to check images

4. Run `docker run -p 4000:80 ` or `docker run -d -p 4000:80 ` to detached container on background

5. Locate to `http://localhost:4000` from your current browser

Want to stop? Run `docker container stop $(docker container ls -a -q)`

To Remove containers Run `docker container rm $(docker container ls -a -q)`

To see list of container running, use `docker ps`.

## Service and Swarm

Docker has a service and swarms feature to demonstrate like load balancing over containers. You need to do is `docker-compose.yml` :

```

version: "3"

services:

  web:

    image: emsi_python_sample:latest

    deploy:

      replicas: 2

      resources:

        limits:

          cpus: "0.1"

          memory: 50M

      restart_policy:

        condition: on-failure

    ports:

      - "80:80"

    networks:

      - webnet

networks:

  webnet:

```

I use local image for this project, you don't need a Docker Cloud account.

And then run this following commands to make it:

1. Run `docker swarms init` to initialize swarms

2. Then run `docker stack deploy -c docker-compose.yml pythonproject` to define a new service called *pythonproject*

3. Run `docker service ls` to check running service

![Alt text](images/service-screenshot.png?raw=true "Service Screenshot")

4. Because we ported the app into port 80, you can access this service through `http://localhost:80` and Voila!

5. Refresh it, and make sure container host ID is changed on every hit.

### Thank you. And happy coding!