CKAPreview

SIMULATION -

Task -
A Kubernetes worker node, named wk8s-node-0 is in state NotReady.
Investigate why this is the case, and perform any appropriate steps to bring the node to a Ready state, ensuring that any changes are made permanent.

SIMULATION

Task

Create a new nginx Ingress resource as follows:

• Name: ping
• Namespace: ing-internal
• Exposing service hi on path /hi using service port 5678

SIMULATION

Task

Schedule a pod as follows:

• Name: nginx-kusc00401
• Image: nginx
• Node selector: disk=spinning

SIMULATION

Task

Create a new NetworkPolicy named allow-port-from-namespace in the existing namespace echo.

Ensure that the new NetworkPolicy allows Pods in namespace internal to connect to port 9200/tcp of Pods in namespace echo.

Further ensure that the new NetworkPolicy:

• does not allow access to Pods, which don't listen on port 9200/tcp
• does not allow access from Pods, which are not in namespace internal

SIMULATION

Task

Create a persistent volume with name app-data, of capacity 2Gi and access mode ReadWriteOnce. The type of volume is hostPath and its location is /srv/app-data.

SIMULATION

Task

Schedule a Pod as follows:

• Name: kucc1
• App Containers: 2
• Container Name/images:
o redis
o consul

SIMULATION

Task

Scale the deployment guestbook to 5 pods.

SIMULATION -

Task -
Create a new NetworkPolicy named allow-port-from-namespace in the existing namespace fubar.
Ensure that the new NetworkPolicy allows Pods in namespace internal to connect to port 9000 of Pods in namespace fubar.
Further ensure that the new NetworkPolicy:
✑ does not allow access to Pods, which don't listen on port 9000
✑ does not allow access from Pods, which are not in namespace internal

SIMULATION -

Task -
Create a new nginx Ingress resource as follows:
✑ Name: pong
✑ Namespace: ing-internal
✑ Exposing service hello on path /hello using service port 5678