Tagging and Pushing Images to DockerHub

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Tagging and Pushing Images to DockerHub

You have just completed building a Dockerfile, and you are ready to push it to Docker Hub. First make sure that you have a Docker Hub account. Then build your image with the `VERSION` build argument that is set to `1.5`. Finally, tag the image to `latest`, and push both images to Docker Hub.

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Lab Info

Level

Intermediate

Last updated

Sep 15, 2025

Duration

30m

Challenge

Log in to Docker Hub
Login to Docker Hub:
```
[cloud_user@host]$ docker login
```
Challenge

Get the Git Commit Hash
Use Git commit hash as the image tag:
```
cd weather-app
cd src
git log -1 --pretty=%H
```

Challenge

Build the `weather-app` Image

Build the image:

cd ../
[cloud_user@host]$ docker image build -t [USERNAME]/weather-app:[HASH] --build-arg VERSION=1.5 .

Challenge

Tag the `weather-app` as Latest

Tag the image to latest:

[cloud_user@host]$ docker image tag [USERNAME]/weather-app:[HASH] [USERNAME]/weather-app:latest

Challenge

Push Both Images to Docker Hub

Push both images to Docker Hub:

docker image push [USERNAME]/weather-app:[HASH]
docker image push [USERNAME]/weather-app:latest

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