Hello world using python in docker

Published: 20 August 2024
on channel: CodeGPT

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certainly! this tutorial will guide you through creating a simple "hello world" application using python in a docker container. we'll cover the following steps:

1. *install docker*
2. *create a simple python application*
3. *create a dockerfile*
4. *build the docker image*
5. *run the docker container*
6. *verify the output*

step 1: install docker

make sure you have docker installed on your system. you can download and install docker from the official website: [docker installation](https://docs.docker.com/get-docker/).

step 2: create a simple python application

first, create a directory for your project. inside that directory, create a python file named `app.py`. you can do this using the terminal or any text editor.

now, open `app.py` and write a simple python program:

step 3: create a dockerfile

next, you need to create a `dockerfile` in the same directory. the dockerfile contains instructions on how to build your docker image.

create a file named `dockerfile` (without any extension) and add the following content:

step 4: build the docker image

now, you can build your docker image. open your terminal, navigate to the `hello-docker` directory, and run the following command:

this command tells docker to build an image named `hello-docker` using the current directory (denoted by `.`) as the context.

step 5: run the docker container

once the image is built, you can run it using the following command:

this command creates a new container from the `hello-docker` image and executes the command specified in the `cmd` instruction of the dockerfile.

step 6: verify the output

if everything was set up correctly, you should see the following output in your terminal:

cleanup

after you're done, you can remove the docker image with the following command:

summary

you have successfully created a simple "hello world" application using python in a docker container. this tutorial covered:

- setting up a si ...

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