Solution:
kubectl describe nodes | grep ready|wc -l
kubectl describe nodes | grep -i taint | grep -i noschedule |wc -l
echo 3 > /opt/KUSC00402/kusc00402.txt
#
kubectl get node | grep -i ready |wc -l
# taints#noSchedule
kubectl describe nodes | grep -i taints | grep -i noschedule |wc -l
#
echo 2 > /opt/KUSC00402/kusc00402.txt

See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Node Selector:
- Create a Node Selector label on the worker node where you want to host the Nginx pods.
- Example:

- Apply this configuration using 'kubectl apply -f node-config.yaml'. 2. Configure the Deployment: - Update the Nginx deployment to include the Node Selector label in its pod template. - Example:

- Apply the updated deployment configuration using 'kubectl apply -f nginx-deployment.yamr. 3. Create a LoadBalancer Service: - Create a LoadBalancer type service that selects the Nginx pods with the 'app=nginx' label. - Example:

- Apply the service configuration using 'kubectl apply -f nginx-service.yamP. 4. Verify the Deployment: - Confirm the deployment of the Nginx pods on the specified worker node using 'kubectl get pods -l app=nginx -o wide'. - Check the LoadBalancer service's external IP address using 'kubectl get services nginx-service'. - Access the Nginx service using the external IP address. All traffic should be routed to the pods on the worker node with the 'worker-type: nginx' label. ---

See the solution below.
Explanation
Kubect1 get po -o wide
Using JsonPath
kubect1 get pods -o=jsonpath='{range
items[*]}{.metadata.name}{"\t"}{.status.podIP}{"\n"}{end}'

See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
Step 1: Create a Role for the "engineering" team

Step 2: Create a RoleBinding to assign the role to the "engineering" team

- The Role defines the permissions for the "engineering" team, allowing them to create deployments in the "dev" namespace. - The RoleBinding associates the "engineering-role" with the user "[email protected]" (representing a developer from the "engineering" team). Step 3: Validate the setup - A developer from the "engineering" team should be able to create deployments in the "dev" namespace. - Other users or teams without the appropriate permissions should be prevented from creating deployments in the "dev" namespace.

See the solution below.
Explanation
Solution:
kubectl get deploy front-end
kubectl edit deploy front-end -o yaml
#port specification named http
#service.yaml
apiVersion: v1
kind: Service
metadata:
name: front-end-svc
labels:
app: nginx
spec:
ports:
- port: 80
protocol: tcp
name: http
selector:
app: nginx
type: NodePort
# kubectl create -f service.yaml
# kubectl get svc
# port specification named http
kubectl expose deployment front-end --name=front-end-svc --port=80 --tarport=80 --type=NodePort