COPY instruction for adding files in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the Dockerfile line to copy a file named app.py to the container's /app directory.

Docker

COPY [1] /app/

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

Aapp/

Bapp.py

C./app.py/

D/app.py

Attempts:

3 left

💡 Hint

Common Mistakes

Adding a slash before the filename

Using a directory name instead of the file

The COPY instruction copies files from the build context. Use the exact filename app.py without slashes.

2fill in blank

medium

Complete the Dockerfile line to copy the entire config folder into the container's /etc/config directory.

Docker

COPY [1] /etc/config/

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

Aconfig

Bconfig/

C/config

D./config

Attempts:

3 left

💡 Hint

Common Mistakes

Adding a leading slash

Adding a trailing slash unnecessarily

To copy a folder, specify the folder name without trailing slash. Docker treats config as the folder to copy.

3fill in blank

hard

Fix the error in this Dockerfile line that tries to copy requirements.txt to /app but fails.

Docker

COPY [1] /app/

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

Arequirements.txt

B/requirements.txt

C./requirements.txt/

Drequirements

Attempts:

3 left

💡 Hint

Common Mistakes

Using a leading slash

Adding a trailing slash

Using a folder name instead of file

The source must be the exact filename without slashes. Leading or trailing slashes cause errors.

4fill in blank

hard

Fill both blanks to copy index.html and style.css into the container's /usr/share/nginx/html directory.

Docker

COPY [1] [2] /usr/share/nginx/html/

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

Aindex.html

Bstyle.css

Cindex.htm

Dstyles.css

Attempts:

3 left

💡 Hint

Common Mistakes

Typos in filenames

Using wrong file extensions

Use the exact filenames to copy both files correctly.

5fill in blank

hard

Fill all three blanks to copy app.py, requirements.txt, and Dockerfile into the container's /app directory.

Docker

COPY [1] [2] [3] /app/

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

Aapp.py

Brequirements.txt

CDockerfile

Ddockerfile

Attempts:

3 left

💡 Hint

Common Mistakes

Wrong capitalization

Using lowercase 'dockerfile' instead of 'Dockerfile'

Use the exact filenames with correct capitalization to copy all files.