Note_Tech

All technological notes.

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Docker - Hello World

Back

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Install Docker Desktop

• ref: https://www.docker.com/products/docker-desktop/

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Django application

• repo: https://github.com/simonangel-fong/Django_Simple_CRUD.git

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Define Docker File

• Document code:

• https://hub.docker.com/_/python

• Create a Dockerfile in your Python app project

FROM python:3

WORKDIR /usr/src/app

COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

CMD [ "python", "./your-daemon-or-script.py" ]

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tutorial code

FROM python:3.8-buster

ENV PYTHONBUFFERED-1

WORKDIR /django

COPY requirements.txt requirements.txt

RUN pip3 install -r requirements.txt

COPY . .

CMD python manage.py runserver 0.0.0.0:8000

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• Create a docker-compose.yml file

version: "3.8"

services:
 app:
  build: . 
  volumes: 
   - .:/django
  ports:
    - 8000:8000
  image: app:django
  container_name: my_first_django_container
  command: python manage.py runserver 0.0.0.0:8000

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• Docker command

In the path with manage.py

# to build the docker image
docker-compose build

then check the docker image in the docker desktop

• Run docker

docker-compose up

Check the Containers tab in docker desktop.

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