Build context concept in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to build a Docker image using the current directory as the build context.

Docker

docker build -t myimage [1]

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

A.

B-f

C-p

D--rm

Attempts:

3 left

💡 Hint

Common Mistakes

Using flags like -f or -p instead of specifying the build context path.

Omitting the build context path entirely.

The dot . tells Docker to use the current directory as the build context, which includes all files needed for the build.

2fill in blank

medium

Complete the command to specify a Dockerfile named 'Dockerfile.dev' while building with the current directory as context.

Docker

docker build -t devimage [1] Dockerfile.dev .

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

A-f

B-b

C-d

D-c

Attempts:

3 left

💡 Hint

Common Mistakes

Using -c or -d which are not valid for specifying Dockerfile.

Placing the Dockerfile name before the option.

The -f option lets you specify a custom Dockerfile name or path.

3fill in blank

hard

Fix the error in the command to build an image with the build context set to the 'app' directory.

Docker

docker build -t appimage [1]

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

A-app

Bapp/

C--app

D/app

Attempts:

3 left

💡 Hint

Common Mistakes

Adding dashes before the directory name which are interpreted as options.

Using absolute paths without knowing the current directory.

The build context is a path, so app/ correctly points to the 'app' directory relative to the current location.

4fill in blank

hard

Fill both blanks to create a Docker build command that uses the 'src' directory as context and specifies a Dockerfile named 'Dockerfile.prod'.

Docker

docker build [1] Dockerfile.prod [2]

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

A-f

B-c

Csrc

D.

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the order of Dockerfile and context.

Using invalid options like -c for Dockerfile.

The -f option specifies the Dockerfile, and src is the build context directory.

5fill in blank

hard

Fill all three blanks to build a Docker image named 'webapp' using the 'web' directory as context and a Dockerfile named 'Dockerfile.web'.

Docker

docker build [1] Dockerfile.web [2] -t [3]

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

A-f

Bweb

Cwebapp

D.

Attempts:

3 left

💡 Hint

Common Mistakes

Placing the image tag before the context directory.

Using the wrong option for Dockerfile.

-f specifies the Dockerfile, web is the build context directory, and webapp is the image tag.