Docker Compose with Nginx - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the Nginx image in the Docker Compose service.

Nginx

services:
  webserver:
    image: nginx[1]

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

A:dev

B:latest

C:alpine

D:stable

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the colon before the tag

Using a non-existent tag like ':dev'

The image field specifies which Nginx version to use. :stable is a common tag for a reliable version.

2fill in blank

medium

Complete the code to map port 8080 on the host to port 80 in the Nginx container.

Nginx

services:
  webserver:
    ports:
      - "[1]:80"

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

A8080

B80

C8000

D443

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the ports (e.g., '80:8080')

Using a port not allowed or already in use

Port mapping syntax is host_port:container_port. Here, host port 8080 maps to container port 80.

3fill in blank

hard

Fix the error in the volume mapping to serve a custom Nginx config file.

Nginx

services:
  webserver:
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf[1]

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

A:ro

B:rw

C::ro

D::rw

Attempts:

3 left

💡 Hint

Common Mistakes

Using double colons (::) which is invalid

Forgetting the read-only flag when needed

The volume mapping syntax uses a single colon : to separate host and container paths. :ro means read-only.

4fill in blank

hard

Fill both blanks to complete the environment variable and restart policy for the Nginx service.

Nginx

services:
  webserver:
    environment:
      - NGINX_HOST=[1]
    restart: [2]

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

Alocalhost

Balways

Con-failure

Dproduction

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid restart policies

Setting environment variables to wrong values

NGINX_HOST is set to localhost for local testing. The restart policy always restarts the container if it stops.

5fill in blank

hard

Fill all three blanks to complete the Docker Compose service with build context, Dockerfile, and network.

Nginx

services:
  webserver:
    build:
      context: [1]
      dockerfile: [2]
    networks:
      - [3]

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

A.

BDockerfile.nginx

Cfrontend

Dnginx

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong network names

Incorrect Dockerfile names or paths

The build context is the current directory .. The Dockerfile is named Dockerfile.nginx. The service connects to the frontend network.