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Lab 11.3 - Logging Configuration

Lab Objectives​

By the end of this lab, you will be able to:

  • Understand logging in Kubernetes.
  • Install Fluent Bit for log collection.
  • Configure log collection from Pods.
  • Visualize logs in a centralized system.

Estimated Duration​

45-60 minutes

Prerequisites​

  • kubectl installed and configured.
  • Working local Kubernetes cluster.

Part 1: Installing Fluent Bit​

Step 1.1: Install with Helm​

helm repo add fluent https://fluent.github.io/helm-charts
helm repo update
helm install fluent-bit fluent/fluent-bit --namespace logging --create-namespace

Part 2: Configuring Collection​

Step 2.1: Create Test Pods​

Create Pods that generate logs:

apiVersion: v1
kind: Pod
metadata:
  name: log-generator
spec:
  containers:
  - name: app
    image: busybox:1.35
    command: ["/bin/sh", "-c"]
    args: ["while true; do echo '$(date): Log entry from pod'; sleep 5; done"]

Part 3: Viewing Logs​

Step 3.1: Verify Collected Logs​

kubectl logs -n logging -l app.kubernetes.io/name=fluent-bit

Lab Summary​

In this lab, you configured logging with Fluent Bit. You learned how to collect and centralize logs from Kubernetes applications.

Next Steps​

The final lab of this module will show you how to configure alerting and notifications.

Lab 11.4: Alerting and Notifications

Lab created on: December 2024