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NEW QUESTION # 10
Service Accounts and RBAC - Grant Cluster Reader Role
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
Step 1: Confirm the service account exists in auth-audit.
It must exist before a role can be assigned to it.
Step 2: Run the command:
oc adm policy add-cluster-role-to-user cluster-reader system:serviceaccount:auth-audit:audit Step 3: Verify the binding is added.
The lab output shows:
clusterrole.rbac.authorization.k8s.io/cluster-reader added: "system:serviceaccount:auth-audit:audit" Detailed explanation:
This binds the cluster-reader cluster role to the audit service account. The full subject format system:
serviceaccount:namespace:name is required because OpenShift RBAC needs the exact service account identity. The cluster-reader role is broader than a project-scoped view role because it allows read-level access across cluster resources. This is appropriate for auditing or inspection use cases where the account must observe but not modify. The distinction between cluster roles and namespaced roles is important: cluster roles apply to non-namespaced resources and broad cluster visibility, while local roles are limited to individual projects. This Task is a classic RBAC operation that combines identity creation with controlled privilege assignment.
NEW QUESTION # 11
Add tolerations to a deployment
Task Information : Update payments/api deployment to tolerate dedicated=payments:NoSchedule.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Patch deployment with toleration
* oc -n payments patch deploy api --type=merge -p '{
* "spec":{"template":{"spec":{"tolerations":[
* {"key":"dedicated","operator":"Equal","value":"payments","effect":"NoSchedule"}
* ]}}}
* }'
* Toleration allows pods to schedule onto tainted nodes.
* Verify scheduling
* oc -n payments get pods -o wide
NEW QUESTION # 12
Restore application into same namespace
Task Information : Restore from backup orders-full and validate the app resources return.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Start the restore
* velero restore create orders-restore --from-backup orders-full
* Monitor restore status
* velero restore get
* velero restore describe orders-restore --details
* Validate restored resources
* oc -n orders get all
* oc -n orders get pvc
* Ensure deployments/pods/services and PVCs exist and pods become Running.
NEW QUESTION # 13
Create a full application backup (resources + PV data)
Task Information : Create a Velero backup of namespace orders including PV snapshots.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Confirm resources and PVCs exist
* oc -n orders get all
* oc -n orders get pvc
* Ensures there is something meaningful to back up.
* Create backup including volume snapshots
* velero backup create orders-full --include-namespaces orders --snapshot-volumes
* Captures Kubernetes objects and requests PV snapshots where supported.
* Check status/details
* velero backup describe orders-full --details
* velero backup logs orders-full
* Review warnings/errors and confirm snapshot actions.
NEW QUESTION # 14
Create and use a service account token via kubeconfig
Task Information : Create SA ci-bot in ci namespace and generate a kubeconfig that authenticates using its token.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Create namespace and service account
* oc new-project ci
* oc -n ci create sa ci-bot
* The SA will represent automation access.
* Grant permissions (example: edit in namespace)
* oc -n ci policy add-role-to-user edit system:serviceaccount:ci:ci-bot
* Without permissions, token auth succeeds but API actions are denied.
* Generate token (TokenRequest)
* TOKEN=$(oc -n ci create token ci-bot)
* OCP issues a short-lived token by default (good practice).
* Create kubeconfig using the token
* oc config set-cluster lab --server="$(oc whoami --show-server)" \
* --insecure-skip-tls-verify=true --kubeconfig=ci-bot.kubeconfig
* oc config set-credentials ci-bot --token="$TOKEN" --kubeconfig=ci-bot.kubeconfig
* oc config set-context ci --cluster=lab --user=ci-bot --namespace=ci \
* --kubeconfig=ci-bot.kubeconfig
* oc config use-context ci --kubeconfig=ci-bot.kubeconfig
* This produces a self-contained kubeconfig for CI automation.
* Test access
* oc --kubeconfig=ci-bot.kubeconfig get pods
NEW QUESTION # 15
......
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