Take a local Docker image, tag it correctly, authenticate to a registry, and push it for reuse in other environments.
Understand the full image lifecycle from local build to remote registry storage.
Package the application into a local Docker image.
Write or reuse a Dockerfile
Build the image locally
Check the image with docker images
Authenticate and tag the image correctly for the registry.
Log in to Docker Hub
Tag the image with username/repository format
Verify the final tag
Upload the image and confirm it is available remotely.
Push the image
Verify it appears in the registry
Document pull instructions
Build a local Docker image.
Log in to the registry.
Tag the image correctly.
Push the image.
Verify the image in the registry.
docker images shows the local image and tag
docker push completes successfully
The image appears in Docker Hub or chosen registry
The image can be pulled on another machine
Dockerfile
Published image in registry
README with build, tag, push, and pull commands
Shows that you understand how container images move from local development into reusable deployment artifacts.
Wrong repository tag format
Not being logged in before pushing
Pushing the wrong image version
Forgetting to document the pull command
Automate the push with GitHub Actions
Use semantic version tags
Push to AWS ECR
Add image scanning before push