[cka] Managing Application Logs

 

1. We have deployed a POD hosting an application. Inspect it. Wait for it to start.

controlplane ~ ➜  k get pods
NAME       READY   STATUS    RESTARTS   AGE
webapp-1   1/1     Running   0          13s

 

2. A user - USER5 - has expressed concerns accessing the application. Identify the cause of the issue.
Inspect the logs of the POD

controlplane ~ ✖ k logs webapp-1 
[2024-06-24 12:12:55,531] INFO in event-simulator: USER2 is viewing page2
[2024-06-24 12:12:56,533] INFO in event-simulator: USER2 logged in
[2024-06-24 12:12:57,534] INFO in event-simulator: USER2 is viewing page2
[2024-06-24 12:12:58,535] INFO in event-simulator: USER4 logged in
...
[2024-06-24 12:14:00,659] WARNING in event-simulator: USER5 Failed to Login as the account is locked due to MANY FAILED ATTEMPTS.

answer : account is locked due to MANY FAILED ATTEMPTS

 

3. We have deployed a new POD - webapp-2 - hosting an application. Inspect it. Wait for it to start.

controlplane ~ ➜  k get pods
NAME       READY   STATUS    RESTARTS   AGE
webapp-1   1/1     Running   0          3m3s
webapp-2   2/2     Running   0          21s

 

4. A user is reporting issues while trying to purchase an item. Identify the user and the cause of the issue.
Inspect the logs of the webapp in the POD

 

controlplane ~ ➜  k logs webapp-2
Defaulted container "simple-webapp" out of: simple-webapp, db
...
[2024-06-24 12:15:40,528] WARNING in event-simulator: USER5 Failed to Login as the account is locked due to MANY FAILED ATTEMPTS.
..
[2024-06-24 12:15:43,532] WARNING in event-simulator: USER30 Order failed as the item is OUT OF STOCK.
..

 

answer : USER30 - item is OUT OF STOCK