exercise-2

Exercise - 2

You sometimes need to observe a pod's logs and write those logs to a file for further analysis.

• Deploy the counter pod to the cluster using the provided YAML spec file at counter.yaml
• Retrieve all currently available application logs from the running pod and store them in the file log_Output.txt, which has already been created

Solution

Step 1

apiVersion: v1
kind: Pod
metadata:
  name: counter
spec:
  containers:
  - name: busybox
    image: busybox
    args: [/bin/sh, -c, 'while true; do echo $(date); sleep 1; done']

Step 2

kubectl create -f .\counter.yaml
pod/counter created

Step 3

kubectl logs counter
Sat Jul 10 16:04:12 UTC 2021
Sat Jul 10 16:04:13 UTC 2021
Sat Jul 10 16:04:14 UTC 2021
Sat Jul 10 16:04:15 UTC 2021
Sat Jul 10 16:04:16 UTC 2021
Sat Jul 10 16:04:17 UTC 2021
Sat Jul 10 16:04:18 UTC 2021
Sat Jul 10 16:04:19 UTC 2021
Sat Jul 10 16:04:20 UTC 2021
Sat Jul 10 16:04:21 UTC 2021
Sat Jul 10 16:04:22 UTC 2021
Sat Jul 10 16:04:23 UTC 2021
Sat Jul 10 16:04:24 UTC 2021
Sat Jul 10 16:04:25 UTC 2021

Step 4

kubectl logs counter > log_Output.txt

cat .\log_Output.txt
Sat Jul 10 16:04:12 UTC 2021
Sat Jul 10 16:04:13 UTC 2021
Sat Jul 10 16:04:14 UTC 2021
Sat Jul 10 16:04:15 UTC 2021
Sat Jul 10 16:04:16 UTC 2021
Sat Jul 10 16:04:17 UTC 2021
Sat Jul 10 16:04:18 UTC 2021
Sat Jul 10 16:04:19 UTC 2021
Sat Jul 10 16:04:20 UTC 2021
Sat Jul 10 16:04:21 UTC 2021
Sat Jul 10 16:04:22 UTC 2021
Sat Jul 10 16:04:23 UTC 2021
Sat Jul 10 16:04:24 UTC 2021
Sat Jul 10 16:04:25 UTC 2021