Docker Hub as image registry - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to log in to Docker Hub.

Docker

docker [1]

Drag options to blanks, or click blank then click option'

Alogin

Blogout

Cpush

Dpull

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'docker push' instead of 'docker login' to sign in.

Trying 'docker logout' when you want to sign in.

The docker login command lets you sign in to Docker Hub to push or pull images.

2fill in blank

medium

Complete the command to push a Docker image named 'myapp' to Docker Hub under user 'alice'.

Docker

docker push alice/[1]

Drag options to blanks, or click blank then click option'

Alatest

Bcontainer

Cimage

Dmyapp

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'latest' as the image name instead of the actual image name.

Confusing container names with image names.

You push the image by specifying your Docker Hub username and the image name, like alice/myapp.

3fill in blank

hard

Fix the error in the command to tag a local image 'app' for Docker Hub user 'bob' with tag 'v1'.

Docker

docker tag app [1]/app:v1

Drag options to blanks, or click blank then click option'

Aalice

Bbob

Capp

Dv1

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'alice' instead of the correct username 'bob'.

Using the tag 'v1' as the username.

The tag must include your Docker Hub username before the image name, so 'bob/app:v1' is correct.

4fill in blank

hard

Fill both blanks to pull the image 'nginx' with tag 'stable' from Docker Hub.

Docker

docker [1] nginx:[2]

Drag options to blanks, or click blank then click option'

Apull

Bpush

Cstable

Dlatest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'push' instead of 'pull' to download images.

Using 'latest' tag instead of 'stable' when specified.

The command to download an image is docker pull, and the tag specifies the version, here 'stable'.

5fill in blank

hard

Fill all three blanks to build a Docker image from 'Dockerfile' and tag it for user 'carol' with name 'webapp' and tag 'v2'.

Docker

docker build -t [1]/[2]:[3] .

Drag options to blanks, or click blank then click option'

Acarol

Bwebapp

Cv2

Dlatest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'latest' tag instead of 'v2'.

Mixing up username and image name positions.

The build command tags the image with your Docker Hub username, image name, and version tag.