10 Common Docker Mistakes to Avoid for Seamless Deployment

A Quick Overview

Storing data inside the container can lead to performance issues and data loss. Instead, utilize volumes to store data externally to the container.

Persisting Data Inside the Container

1

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Running multiple services in a single container can cause resource contention and hinder performance. Opt for running each service in a dedicated container for better resource management.

2

Overloading Containers with Multiple Services

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Complex Dockerfile Instructions

Avoid using multiple RUN, COPY, and VOLUME instructions in your Dockerfile, as it can make the file harder to read and maintain. Utilize a single RUN instruction for each command.

3

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Deprecated ADD Instruction

The ADD instruction is deprecated and poses security risks. Replace it with the COPY instruction for safer and more transparent file copying within your Dockerfile.

4

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Neglecting Environment Variables

Leverage environment variables for configuring your application. This ensures flexibility without modifying the Dockerfile directly.

5

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Skipping Local Image Builds

Always build your Docker images locally before deployment. This allows you to test and validate them, avoiding potential issues in a production environment.

6

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Bypassing Docker Registry

Utilize a Docker registry to store and share images efficiently. Avoid local storage and leverage a registry for better image management.

7

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Untagged Images

Tagging your Docker images is crucial for versioning and tracking changes. Always tag your images before pushing them to a registry to maintain version control.

8

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Manual Image Building

Use Dockerfiles to automate the image-building process. Manual image building is error-prone, while Dockerfiles provide consistency and repeatability.

9

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Learn Basic to Advanced Docker commands with  Docker Cheat Sheet!

Underestimating Docker Compose

Embrace Docker Compose for efficient management of multiple containers, streamlining orchestration and scaling in just a few lines of configuration.

10

Want to learn more about Docker and all that it has to offer?

Take your knowledge of Docker to next level & discover everything you need to know with Docker cheat sheet.

Scaler Data Science & Machine Learning Program!

Ready to level up your data science skills? Join Scaler to become a master of data science and machine learning.  Book a FREE LIVE CLASS now.