WORKDIR instruction for directory in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the Dockerfile line to set the working directory to /app.

Docker

WORKDIR [1]

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

A/home

B/app

C/var

D/usr

Attempts:

3 left

💡 Hint

Common Mistakes

Using a directory that does not exist or is unrelated to the app.

Forgetting the leading slash for absolute paths.

The WORKDIR instruction sets the working directory inside the container. Using /app sets it to the /app folder.

2fill in blank

medium

Complete the Dockerfile to set the working directory to a folder named 'src' inside /usr.

Docker

WORKDIR [1]

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

A/usr/src

B/usr/bin

C/usr/local

D/usr/lib

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing system folders like /usr/bin which are not for app source code.

Missing the 'src' folder in the path.

The WORKDIR /usr/src sets the working directory to the src folder inside /usr.

3fill in blank

hard

Fix the error in this Dockerfile line to set the working directory to /data.

Docker

WORKDIR [1]

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

AC:/data

Bdata

C/data

D./data

Attempts:

3 left

💡 Hint

Common Mistakes

Using relative paths like 'data' or './data'.

Using Windows-style paths like 'C:/data'.

The WORKDIR path must be absolute in Linux containers. /data is correct. data or ./data are relative and cause errors. C:/data is a Windows path and invalid here.

4fill in blank

hard

Fill both blanks to set the working directory to /var/www/html.

Docker

WORKDIR /[1]/[2]

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

Avar

Bwww

Chtml

Dusr

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'usr' instead of 'var' as the first folder.

Swapping 'www' and 'html' positions.

The path /var/www/html is built by joining var and www in the first two blanks. The last folder html is missing here because only two blanks are asked.

5fill in blank

hard

Fill all three blanks to set the working directory to /opt/project/src.

Docker

WORKDIR /[1]/[2]/[3]

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

Aopt

Bproject

Csrc

Dbin

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'bin' instead of 'src' as the last folder.

Mixing folder order.

The full path /opt/project/src is built by filling blanks with opt, project, and src respectively.