Core Concept  – 13 %

Configuration  – 18 %

Multi-Container Pods – 10 %

Pod Design – 20 %

State Persistent – 8 %

Observability – 18 %

Service and Networking – 13 %

 

By default RUN creates a deployment

$ kubectl run nginx –image=nginx                                                                                               —> deployment

C:\ovi\docker
λ kubectl run nginx –image=nginx –dry-run -o yaml

 

$ kubectl run nginx –image=nginx –restart=Never                                                                     —> pod

 

 

$ kubectl run busybox –image=busybox –restart=OnFailure                                                       —> job

$ kubectl run busybox –image=busybox –schedule=”* * * * *” –restart=OnFailure                    —-> cronJob

 

Secretes

You can generate secretes

$ kubectl create secret generic my-secret –from-literal=ovi=yyy -o yaml –dry-run > ovi-secret.yaml

and now you can create secret with bellow command:

 

$ kubectl create -f ovi-secret.yaml

 

Decode-it

 

*** Jobs and Cronjobs ***
————————–

You can use kubectl get to list and check the status of Jobs.

kubectl get jobs

You can use kubectl get to list and check the status of CronJobs.

kubectl get cronjobs

 

liveness pod 

 

apiVersion: v1
kind: Pod
metadata:
name: ovi-liveness-pod
spec:
containers:
– name: myapp-container
image: busybox
command: [‘sh’, ‘-c’, “echo Hello, OVI! && sleep 3600”]
livenessProbe:
exec:
command:
– echo
– testing
initialDelaySeconds: 5
periodSeconds: 5