Sharing volumes between containers in Docker - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a Docker volume named 'data_vol'.

Docker

docker volume [1] data_vol

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

Abuild

Brun

Cstart

Dcreate

Attempts:

3 left

💡 Hint

Common Mistakes

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

Trying to start or build a volume.

The docker volume create command creates a new volume named 'data_vol'.

2fill in blank

medium

Complete the code to run a container named 'app1' and mount the volume 'data_vol' to '/app/data'.

Docker

docker run -d --name app1 -v [1]:/app/data alpine sleep 1000

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

Adata_vol

B/data

Capp1_vol

D/app/data

Attempts:

3 left

💡 Hint

Common Mistakes

Using container path instead of volume name before colon.

Using wrong volume name.

The volume name 'data_vol' is mounted to the container path '/app/data' using -v data_vol:/app/data.

3fill in blank

hard

Fix the error in the command to run a second container 'app2' sharing the same volume 'data_vol' at '/app/data'.

Docker

docker run -d --name app2 -v [1]:/app/data alpine sleep 1000

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

A/app/data

Bdata_vol

Capp2_vol

Ddata_vol:/app/data

Attempts:

3 left

💡 Hint

Common Mistakes

Using full volume and path together as one option.

Using container path instead of volume name.

The volume name 'data_vol' should be specified before the colon without repeating the path.

4fill in blank

hard

Fill both blanks to create a Docker Compose service 'app1' that uses the volume 'data_vol' mounted at '/app/data'.

Docker

version: '3.8'\nservices:\n  app1:\n    image: alpine\n    command: sleep 1000\n    volumes:\n      - [1]:[2]\nvolumes:\n  data_vol: {}

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

Adata_vol

B/app/data

C/data

Dapp1_data

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping volume name and container path.

Using wrong volume or path names.

The volume 'data_vol' is mounted to the container path '/app/data' in the Docker Compose file.

5fill in blank

hard

Fill all three blanks to define a Docker Compose file with two services 'app1' and 'app2' sharing the volume 'shared_vol' mounted at '/data' in both containers.

Docker

version: '3.8'\nservices:\n  app1:\n    image: alpine\n    command: sleep 1000\n    volumes:\n      - [1]:[2]\n  app2:\n    image: alpine\n    command: sleep 1000\n    volumes:\n      - [3]:[2]\nvolumes:\n  shared_vol: {}

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

Ashared_vol

B/data

D/app/data

Attempts:

3 left

💡 Hint

Common Mistakes

Using different volume names for each service.

Using different mount paths.

Both services use the same volume 'shared_vol' mounted at '/data'. The volume name is repeated for both services.