Capgemini Engineering Devops Engineer Interview Questions, Process, and Tips

Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications.

• Kubernetes follows a master-slave architecture with a master node and multiple worker nodes.

• Master node components include API server, scheduler, controller manager, and etcd.

• Worker node components include kubelet, kube-proxy, and container runtime (e.g. Docker).

• Kubernetes u...read more

RBAC stands for Role-Based Access Control, a method of restricting network access based on roles assigned to individual users.

• RBAC assigns roles to users based on their job responsibilities

• Access control is managed through policies that define what actions each role can perform

• RBAC simplifies user management by grouping users with similar access needs

Docker network is a virtual network that allows containers to communicate with each other and with external networks.

• Docker network enables communication between containers running on the same host or across different hosts.

• It provides isolation and security for containers by creating separate network namespaces.

• Users can create custom networks with specific configurations such as bridge, overlay, and macvlan.

• Docker ne...read more

A Kubernetes service is an abstraction that defines a logical set of Pods and a policy by which to access them.

• Services allow communication between different parts of an application or between different applications.

• Services can be exposed internally within the cluster or externally to the internet.

• Types of services include ClusterIP, NodePort, LoadBalancer, and ExternalName.

• Services can be created using YAML manifests

Jenkins declarative scripting is a way to define pipelines using a simplified syntax.

• Use 'pipeline' block to define the entire pipeline

• Use 'stages' block to define different stages of the pipeline

• Use 'steps' block within stages to define individual steps

• Use 'agent' block to specify where the pipeline will run

• Use 'post' block to define actions to be taken after the pipeline has completed