Grafana for visualization in Kubernetes - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to deploy Grafana using kubectl.

Kubernetes

kubectl create deployment grafana --image=[1]

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

Amysql:5.7

Bnginx:latest

Credis:alpine

Dgrafana/grafana:latest

Attempts:

3 left

💡 Hint

Common Mistakes

Using images unrelated to Grafana like nginx or redis.

Forgetting to specify the image tag.

The correct image for Grafana is grafana/grafana:latest. Other images are unrelated services.

2fill in blank

medium

Complete the command to expose Grafana deployment as a service.

Kubernetes

kubectl expose deployment grafana --type=[1] --port=3000

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

AClusterIP

BLoadBalancer

CNodePort

DExternalName

Attempts:

3 left

💡 Hint

Common Mistakes

Using ClusterIP which is internal only.

Using ExternalName which maps to external DNS.

Using NodePort exposes the service on each node's IP at a static port, allowing external access for testing.

3fill in blank

hard

Fix the error in the YAML snippet to set Grafana admin password.

Kubernetes

apiVersion: v1
kind: Secret
metadata:
  name: grafana-secret
type: Opaque
data:
  admin-password: [1]

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AYWRtaW4=

Badmin

Cpassword123

DcGFzc3dvcmQ=

Attempts:

3 left

💡 Hint

Common Mistakes

Putting plain text instead of base64 encoded string.

Using wrong base64 encoding.

The data field in Kubernetes secrets requires base64 encoded values. YWRtaW4= is base64 for 'admin'.

4fill in blank

hard

Fill both blanks to create a ConfigMap for Grafana datasource with Prometheus URL.

Kubernetes

apiVersion: v1
kind: ConfigMap
metadata:
  name: grafana-datasource
data:
  datasource.yaml: |-
    apiVersion: 1
    datasources:
      - name: Prometheus
        type: [1]
        url: [2]

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

Aprometheus

B"http://prometheus-server.default.svc.cluster.local:9090"

C"http://localhost:9090"

Dinfluxdb

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong datasource type like influxdb.

Using localhost URL which won't work inside Grafana pod.

The datasource type for Prometheus is prometheus. The URL must point to the Prometheus service inside the cluster.

5fill in blank

hard

Fill all three blanks to create a Pod with Grafana container and environment variable for admin password.

Kubernetes

apiVersion: v1
kind: Pod
metadata:
  name: grafana-pod
spec:
  containers:
  - name: grafana
    image: [1]
    ports:
    - containerPort: 3000
    env:
    - name: GF_SECURITY_ADMIN_PASSWORD
      valueFrom:
        secretKeyRef:
          name: [2]
          key: [3]

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

Agrafana/grafana:latest

Bgrafana-secret

Cadmin-password

Dnginx:latest

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong container image like nginx.

Mismatching secret name or key.

The container image must be Grafana's official image. The secret name and key must match the secret storing the admin password.