kubernetes-yaml/learn/learn-kubernetes-master/kiamol/ch13/lab

Ch13 lab

Setup

Deploy the logging subsystem:

kubectl apply -f lab/logging/

Sample Solution

Part 1

Fluent Bit is configured to store entries from Pods in the namespace kiamol-ch13-lab.

Create that namespace and deploy the vweb app:

kubectl create ns kiamol-ch13-lab

kubectl apply -f lab/vweb/ -n kiamol-ch13-lab

Browse to the app which will trigger Nginx logs in the container.

Browse to Kibana and create an index pattern for the index called lab - verify that logs are coming through.

Part 2

The logs are there, but not parsed so they're just text.

Deploy an update to the vweb Deployment which adds an annotation to use the Nginx parser:

kubectl apply -f lab/solution/vweb-with-parser.yaml -n kiamol-ch13-lab

Browse to the app again and refresh Kibana - the logs should have fields for HTTP path, response code etc.

Part 3

Now to filter out 304s, add a grep filter to the Fluent Bit config and update the Pod:

kubectl apply -f lab/solution/fluentbit-config-grep.yaml

kubectl rollout restart ds/fluent-bit -n kiamol-ch13-lab-logging

kubectl wait --for=condition=ContainersReady pod -l app=fluent-bit -n kiamol-ch13-lab-logging

Browse to the app again and refresh Kibana - no 304s are shown for recent requests

Teardown

Remove the namespaces and that removes everything:

kubectl delete ns kiamol-ch13-lab

kubectl delete ns kiamol-ch13-lab-logging