BuildKit for improved builds in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to enable BuildKit for Docker builds.

Docker

DOCKER_BUILDKIT=[1] docker build .

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

Atrue

B0

Cenable

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 disables BuildKit, so the build won't use it.

Using 'true' or 'enable' are not valid values for this environment variable.

Setting DOCKER_BUILDKIT=1 enables BuildKit for faster and more efficient Docker builds.

2fill in blank

medium

Complete the Dockerfile command to use BuildKit's cache mount feature.

Docker

RUN --mount=type=[1],target=/root/.cache pip install -r requirements.txt

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

Atmpfs

Bbind

Ccache

Dvolume

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bind' mounts host directories, not cache.

Using 'tmpfs' creates temporary memory mounts, not persistent cache.

The cache mount type allows BuildKit to cache files between builds, speeding up repeated installs.

3fill in blank

hard

Fix the error in the command to build with BuildKit and output a progress bar.

Docker

DOCKER_BUILDKIT=1 docker build --progress=[1] .

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

Adetailed

Bauto

Cbar

Dplain

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bar' is not a valid progress option.

Using 'detailed' is not recognized by Docker.

The --progress=auto option lets Docker choose the best progress output, including a progress bar in terminals.

4fill in blank

hard

Fill both blanks to create a Dockerfile snippet that uses BuildKit cache and sets a build argument.

Docker

ARG CACHEBUST=[1]
RUN --mount=type=[2],target=/root/.cache pip install -r requirements.txt

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

A1

Bcache

C0

Dbind

Attempts:

3 left

💡 Hint

Common Mistakes

Using '0' disables cache busting.

Using 'bind' instead of 'cache' causes no caching.

Setting ARG CACHEBUST=1 allows cache busting, and --mount=type=cache enables caching pip files.

5fill in blank

hard

Fill all three blanks to create a BuildKit-enabled Docker build command with a custom target and output directory.

Docker

DOCKER_BUILDKIT=1 docker build --target [1] --output type=[2],dest=[3] .

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

Aproduction

Blocal

C./output

Dcache

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'cache' as output type is invalid here.

Missing the destination path causes errors.

Use --target production to build a specific stage, --output type=local to output files locally, and dest=./output to set the output folder.