Why configuration separation matters in Kubernetes - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a ConfigMap named 'app-config'.

Kubernetes

kubectl create configmap [1] --from-literal=key=value

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

Aconfig-app

Bapp-config

Cappconfig

Dconfigmap-app

Attempts:

3 left

💡 Hint

Common Mistakes

Using a name without a dash or incorrect order.

The ConfigMap name should be 'app-config' as specified.

2fill in blank

medium

Complete the command to apply a ConfigMap from a file named 'config.yaml'.

Kubernetes

kubectl apply -f [1]

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

Aconfig.yaml

Bconfigmap.yaml

Cconfigmap.yml

Dconfig.yml

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing '.yml' with '.yaml' or adding 'configmap' prefix.

The file to apply is 'config.yaml' as given in the instruction.

3fill in blank

hard

Fix the error in the command to create a secret named 'db-secret' with a literal password.

Kubernetes

kubectl create secret generic [1] --from-literal=password=pass123

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

Adbsecret

Bdb.secret

Cdb-secret

Ddb_secret

Attempts:

3 left

💡 Hint

Common Mistakes

Using underscores or dots instead of dashes in names.

The secret name should use dashes, so 'db-secret' is correct.

4fill in blank

hard

Fill both blanks to mount the ConfigMap 'app-config' as a volume named 'config-volume' in a pod spec.

Kubernetes

- name: [1]
  configMap:
    name: [2]

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

Aconfig-volume

Bapp-volume

Capp-config

Dconfigmap

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up volume name and ConfigMap name.

The volume name is 'config-volume' and the ConfigMap name is 'app-config'.

5fill in blank

hard

Fill both blanks to define environment variables from a ConfigMap named 'app-config' in a container spec.

Kubernetes

envFrom:
  - [1]:
    name: [2]

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

AconfigMapRef

BsecretRef

Capp-config

DconfigRef

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'secretRef' instead of 'configMapRef'.

Wrong field names.

Use 'configMapRef' to refer to ConfigMap, 'name' is the ConfigMap name 'app-config'. 'secretRef' is incorrect here.