Docker containerization in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the base image for a FastAPI Docker container.

FastAPI

FROM [1]

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

Aalpine:latest

Bnode:latest

Cubuntu:20.04

Dpython:3.12-slim

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a Node.js or Ubuntu base image which is not optimized for Python FastAPI.

The base image python:3.12-slim is suitable for FastAPI apps using Python 3.12.

2fill in blank

medium

Complete the code to copy the application files into the Docker image.

FastAPI

COPY [1] /app

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

ADockerfile

Brequirements.txt

C.

Dmain.py

Attempts:

3 left

💡 Hint

Common Mistakes

Copying only one file like main.py or requirements.txt, missing other files.

Copying . copies all files from the current directory into the image's /app folder.

3fill in blank

hard

Fix the error in the command to install dependencies inside the Dockerfile.

FastAPI

RUN pip install [1] -r requirements.txt

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

A--requirement

B--install

C--upgrade

D--require

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid flags like --install or --require which cause errors.

The correct flag to specify a requirements file is -r or --requirement. The --upgrade flag upgrades packages but does not specify the requirements file.

4fill in blank

hard

Fill both blanks to expose the correct port and run the FastAPI app with uvicorn.

FastAPI

EXPOSE [1]
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "[2]"]

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

A8000

B8080

C5000

D80

Attempts:

3 left

💡 Hint

Common Mistakes

Using different ports for expose and run causing connection issues.

FastAPI by default runs on port 8000. Exposing and running on the same port ensures accessibility.

5fill in blank

hard

Fill all three blanks to create a Dockerfile snippet that sets the working directory, copies files, and installs dependencies.

FastAPI

WORKDIR [1]
COPY [2] .
RUN pip install -r [3]

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

A/app

B.

Crequirements.txt

D/src

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong working directory or copying wrong files or missing requirements.txt.

Setting /app as working directory, copying current directory files, and installing from requirements.txt is standard practice.