Ninja Village Docker Tagging

Introduction

In this lab, you will step into the world of a secret intelligence officer in an ancient Japanese ninja village. As a ninja secret intelligence officer, your mission is to securely store and transfer vital information. You will utilize Docker tag to stealthily mark and organize crucial intelligence.

Skills Graph

Tag an Image with a Specific Tag

In this step, you will learn how to tag a Docker image with a specific tag. Let's start by tagging an existing Docker image with a unique identifier.

Firstly, ensure that you have the Docker image hello-world available locally. If not, pull it from the Docker Hub registry using the following command:

docker pull hello-world

Next, use the docker tag command to create a new tag for the hello-world image:

docker tag hello-world hello-world:v1.0

Push Tagged Image to a Registry

In this step, you will push the tagged image to a Docker registry. You will use Docker Hub as the registry for this exercise.

Ensure you have logged in to the Docker Hub registry using the following command:

docker login

Now, push the hello-world:v1.0 image to the Docker Hub registry:

docker push hello-world:v1.0

Summary

In this lab, you embarked on a journey through the ninja village while exploring the intricacies of Docker image tagging. You learned to effectively tag Docker images and push them to a registry. This knowledge empowers you in effectively organizing and securely transferring vital intelligence within the ninja village.