Volumes for persistent data in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the Docker command to create a volume named 'mydata'.

Docker

docker volume [1] mydata

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

Abuild

Bcreate

Crun

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'docker volume run' instead of 'create'.

Trying to create volume with 'docker run'.

The docker volume create command creates a new volume. Other commands like build, run, or start do not create volumes.

2fill in blank

medium

Complete the Docker run command to mount a volume named 'mydata' to '/app/data' inside the container.

Docker

docker run -v [1]:/app/data myimage

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

Amydata

B/mydata

Cmydata:/app/data

Dmydata:/data

Attempts:

3 left

💡 Hint

Common Mistakes

Adding slashes before volume name.

Using incorrect path after colon.

When mounting a volume by name, use -v volume_name:container_path. Here, mydata is the volume name, and /app/data is the container path.

3fill in blank

hard

Fix the error in the Docker run command to mount a host directory '/data' as a volume inside the container at '/app/data'.

Docker

docker run -v [1]:/app/data myimage

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

A/app/data

Bdata

C/data

Dmydata

Attempts:

3 left

💡 Hint

Common Mistakes

Using volume name instead of host path.

Omitting the leading slash.

To mount a host directory, use the full path on the host before the colon. Here, /data is the host directory.

4fill in blank

hard

Fill both blanks to create a volume and then run a container mounting it at '/data'.

Docker

docker volume [1] myvol && docker run -v [2]:/data alpine

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

Acreate

Bmyvol

Cmyvolume

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' instead of 'create'.

Mismatch between volume name in create and run commands.

First, create the volume with docker volume create myvol. Then run the container mounting myvol at /data.

5fill in blank

hard

Fill all three blanks to define a Docker Compose volume and mount it to '/var/lib/mysql' in the service.

Docker

version: '3.8'
services:
  db:
    image: mysql
    volumes:
      - [1]:/var/lib/mysql
volumes:
  [2]:
    [3]: local

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

Adbdata

Cdriver

Dlocal

Attempts:

3 left

💡 Hint

Common Mistakes

Using different volume names in service and volumes.

Omitting the driver key or using wrong value.

The volume name dbdata is used in both the service and volumes section. The driver key is set to local to use the default volume driver.