Kubernetes Interview Questions: ============================== 1).What is Deamonset into the kubernetes? Deamonset: 2).what is the deployment into kubernestes? ================= apiVersion: apps/v1 kind: Deployment metadata: name: nginx-deployment labels: app: nginx spec: replicas: 2 selector: matchLabels: app: nginx template: metadata: labels: app: nginx spec: containers: - name: nginx image: nginx:latest ports: - containerPort: 80 =============================== 3).what is the statefulset into kubernetes? apiVersion: apps/v1 kind: StatefulSet metadata: name: mysql spec: serviceName: mysql replicas: 3 selector: matchLabels: app: mysql template: metadata: labels: app: mysql spec: containers: - name: mysql image: mysql:8 volumeMounts: - name: data mountPath: /var/lib/mysql volumeClaimTemplates: - metadata: name: data spec: accessModes: ["ReadWriteOnce"] resources: requests: storage: 10Gi 4).what is the sue of service account into kubernestes into it ? ========================================================= A ServiceAccount provides an identity to pods so that Kubernetes can authenticate and authorize their access to cluster resources using RBAC.” ========================================================= apiVersion: v1 kind: ServiceAccount metadata: name: app-sa =========================== apiVersion: v1 kind: Pod metadata: name: my-pod spec: serviceAccountName: app-sa containers: - name: app image: nginx ============================= apiVersion: rbac.authorization.k8s.io/v1 kind: Role metadata: name: pod-reader rules: - apiGroups: [""] resources: ["pods"] verbs: ["get", "list"] =============================='' apiVersion: rbac.authorization.k8s.io/v1 kind: RoleBinding metadata: name: read-pods subjects: - kind: ServiceAccount name: app-sa roleRef: kind: Role name: pod-reader apiGroup: rbac.authorization.k8s.io ======================= 5).what is the pod into the kubernestes into it ? apiVersion: v1 kind: Pod metadata: name: my-pod labels: app: demo spec: containers: - name: nginx-container image: nginx ports: - containerPort: 80 6).what is the differnt kubernestes services into it ? nodeip cluster port load blnacer external name headless service pods services cluster rbacs ingress controllers master node worker node 7).what is the side conatiner into kubernetes? 8).what is crashloop error ? 9).what is configmap into kubenrrstes ? capiVersion: v1 kind: ConfigMap metadata: name: simple-config data: APP_NAME: myapp APP_ENV: dev ================= kubectl apply -f configmap.yaml ================== kubectl get configmap kubectl describe configmap simple-config 10).what is secretes into kubernestes into it ? ====================================================================

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