SPRINKLR Devops Engineer Interview Questions and Answers

DaemonSet ensures that all or some nodes run a copy of a Pod

• DaemonSet is a Kubernetes resource that ensures a copy of a Pod is running on all or some nodes in a cluster

• It is useful for running a single instance of a Pod on every node in a cluster

• DaemonSet is commonly used for monitoring, logging, and other system-level services

• Example: Running a logging agent on every node in a Kubernetes cluster

Deployment is a way to manage and update applications in Kubernetes. StatefulSet is used for stateful applications with unique identities.

• Deployment is used for stateless applications, while StatefulSet is used for stateful applications.

• Deployment manages replica sets and ensures a desired state is maintained.

• StatefulSet maintains a unique identity for each pod, making it suitable for applications that require stable a...read more

Write Terraform and Ansible script

• Use Terraform to provision infrastructure resources like virtual machines, networks, and storage

• Use Ansible to configure and manage software on the provisioned infrastructure

• Create a Terraform script to deploy a virtual machine on AWS

• Write an Ansible playbook to install and configure Nginx on the deployed virtual machine

I have 5 years of experience in implementing DevOps practices in various organizations.

• Implemented CI/CD pipelines using tools like Jenkins, GitLab CI, and CircleCI

• Automated infrastructure provisioning with tools like Terraform and Ansible

• Managed containerized applications using Docker and Kubernetes

• Monitored and maintained production systems with tools like Prometheus and Grafana

A scripted Jenkinsfile is a Groovy script that defines the pipeline for Continuous Integration (CI).

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

• Utilize 'stage' block to specify individual stages within the pipeline

• Leverage 'steps' block to define the actions to be executed within each stage

• Use 'node' block to allocate a Jenkins agent for running the pipeline

• Utilize 'checkout' step to fetch the source co

Implementing a Web Application Firewall (WAF) in AWS for enhanced security.

• Use AWS WAF to protect web applications from common web exploits.

• Create rules to filter and monitor HTTP and HTTPS requests.

• Integrate AWS WAF with other AWS services like CloudFront or API Gateway for comprehensive protection.

A CD Jenkinsfile automates the Continuous Delivery process in Jenkins.

• Define stages for build, test, deploy

• Use declarative syntax for pipeline

• Include steps for version control, artifact management

• Utilize plugins for notifications, approvals

• Implement error handling and rollback mechanisms