Cigniti Technologies Senior Devops Engineer Interview Questions and Answers

I have recently worked on implementing CI/CD pipelines using Jenkins, Docker, and Kubernetes.

• Implemented Jenkins pipelines for automating build, test, and deployment processes

• Utilized Docker for containerization of applications and services

• Managed Kubernetes clusters for container orchestration

• Integrated monitoring and logging tools like Prometheus and ELK stack

Terraform templates can be used to create AKS clusters.

• Use the azurerm_kubernetes_cluster resource in Terraform to create an AKS cluster.

• Specify the required parameters such as resource group, location, node count, and node size.

• Use the azurerm_kubernetes_service_principal resource to create a service principal for the AKS cluster.

• Use the azurerm_kubernetes_cluster_node_pool resource to create node pools with specific ...read more

Ansible was extensively used in the project for configuration management and automation.

• Automated deployment of applications using Ansible playbooks

• Configuration management of servers using Ansible roles

• Automated backup and restore of databases using Ansible scripts

• Automated provisioning of infrastructure using Ansible modules

Before CI/CD, manual processes were used for software deployment, leading to slower release cycles. After CI/CD, automation streamlines the process for faster and more reliable deployments.

• Before CI/CD: Manual deployment processes requiring human intervention

• After CI/CD: Automated deployment pipelines for continuous integration and continuous delivery

• Before CI/CD: Longer release cycles due to manual testing and deploym...read more

Docker is used for containerization of applications, allowing for easy deployment and scaling. Before Docker, CI/CD integration was more complex and less efficient.

• Docker is used to create lightweight, portable, self-sufficient containers that can run applications in any environment.

• Before Docker, CI/CD pipelines often relied on virtual machines or manual configurations for deployment and testing.

• Docker simplifies the ...read more

Automate the process of adding mount points on system restart and store Terraform state file for accessibility by other developers.

• Use a configuration management tool like Ansible to automatically add mount points on system restart.

• Utilize cloud storage services like AWS S3 or Azure Blob Storage to store Terraform state file for easy access by other developers.

• Implement scripts or automation workflows to handle the mou...read more

Store ansible secrets securely and trigger pipeline after another

• Use ansible-vault to encrypt sensitive data like passwords and API keys

• Store encrypted secrets in a separate file or in a secure vault

• Use ansible-playbook to trigger pipelines sequentially or use a CI/CD tool like Jenkins for automation