Cache mount for faster builds in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the Dockerfile line to use a cache mount for faster builds.

Docker

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

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

Atmpfs

Bcache

Cbind

Dvolume

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bind' instead of 'cache' causes no caching and slower builds.

Using 'tmpfs' mounts a temporary filesystem that is cleared after the build step.

The cache mount type allows Docker to cache files between builds, speeding up repeated steps like package installation.

2fill in blank

medium

Complete the Dockerfile RUN command to specify the cache mount with an ID.

Docker

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

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

Aid

Bkey

Csource

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'name' instead of 'id' causes Docker to ignore the cache.

Omitting the cache ID causes a new cache to be created every build.

The id option names the cache mount so Docker can reuse it across builds.

3fill in blank

hard

Fix the error in this Dockerfile RUN command to correctly use cache mount syntax.

Docker

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

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

Acache

Bbind

Ctmpfs

Dvolume

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bind' or 'tmpfs' instead of 'cache' causes build errors.

Forgetting to specify the cache ID.

The mount type must be cache to enable caching. Other types do not support cache ID.

4fill in blank

hard

Fill both blanks to create a cache mount with an ID and target directory.

Docker

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

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

Acache

Bid

Cname

Dsource

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'name' or 'source' instead of 'id' for the cache identifier.

Using a mount type other than 'cache'.

The mount type must be cache and the cache identifier is set with id.

5fill in blank

hard

Fill all three blanks to create a cache mount with an ID, target directory, and sharing mode.

Docker

RUN --mount=type=[1],[2]=mycache,target=[3] pip install -r requirements.txt

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

Acache

Bid

C/root/.cache

Dshared

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'shared' as the target directory.

Mixing up the order of options.

Omitting the cache ID.

The mount type is cache, the cache ID is set with id, and the target directory is /root/.cache.