---
title: "Discussion on \"A Tiny Docker Mistake That Cost Me More Time Than It Should Have 😅\" | Hashnode"
description: "Discussion on \"A Tiny Docker Mistake That Cost Me More Time Than It Should Have 😅\". Learn how a simple Docker port mapping mistake led me to debug a Flask app and why checking exposed ports saves time."
url: "https://hashnode.com/posts/a-tiny-docker-mistake/6a661564b97c5b9415d2fb7c"
---

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# [A Tiny Docker Mistake That Cost Me More Time Than It Should Have 😅](https://my-cloudjourney.hashnode.dev/a-tiny-docker-mistake?utm_source=hashnode&utm_medium=feed)

Learn how a simple Docker port mapping mistake led me to debug a Flask app and why checking exposed ports saves time.

Jul 26 · 1 min read · my-cloudjourney.hashnode.dev  
Updated Jul 29  
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-   [#flask](https://hashnode.com/tag/flask)
-   [#devops](https://hashnode.com/tag/devops)
-   [#90daysofdevops](https://hashnode.com/tag/90daysofdevops)

## Written by

[Subhan](https://hashnode.com/@subhan-cloud)

@subhan-cloud · Faisalabad

  
[View profile](https://hashnode.com/@subhan-cloud)

Documenting my journey from student to Cloud Engineer.

Hi! I’m Muhammad Subhan Arif, a student based in Faisalabad with a passion for cloud infrastructure and platform engineering. I started this blog to document my path toward becoming a Cloud Engineer.

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