pod-design

Question 1

Imperative command to update pod “nginx2”’s “app” label value to from “v1” to “v2”?

Answer 1

k label po nginx2 app=v2 –overwrite

Question 2

Find pods with label “app=v1” and add assign additional label “tier=fe”

Answer 2

k label pods -l app=v1 tier=fe

Question 3

Find pods with label “app=v1”, and show a table for them that includes the custom label “tier”.

Answer 3

k get pods -l app=v1 -L tier

Question 4

For pods that have the label “app”, remove the that label.

Answer 4

k label po -l app app-

Question 5

Assign label “foo=bar” to a node.

Answer 5

k label nodes minikube foo=bar

Question 6

Remove the label “foo” from all nodes that have it.

Answer 6

k label nodes -l foo foo-

Question 7

Create an nginx deployment with 2 replicas and open port 80

Answer 7

k create deployment nginx –image=nginx:1.18.0 –replicas=2 –port=80

Question 8

Check the status of the rollout of deploy nginx.

Answer 8

k rollout status deployment nginx

Question 9

How to rollback to a particular rollout?

Answer 9

k rollout undo deploy nginx –to-revision=4

Question 10

Check the details of the 6th deployment revision.

Answer 10

k rollout history deployment nginx –revision=6

Question 11

Scale a deployment to 5 replicas.

Answer 11

k scale deploy nginx –replicas=5

Question 12

Autoscale a deployment to 80% CPU, min 5 and max 10

Answer 12

k autoscale deployment nginx –cpu-percent=80 –min=5 –max=10

Question 13

How to pause the rollout of a deployment

Answer 13

k rollout pause deployment nginx