20+ Minwool Rock Fibres Interview Questions and Answers

CI-CD is a software development practice that aims to automate the building, testing, and deployment of code changes.

• CI-CD stands for Continuous Integration and Continuous Deployment/Delivery

• It involves automating the process of building, testing, and deploying code changes

• Tools like Jenkins, GitLab CI/CD, and Travis CI can be used to configure CI-CD pipelines

• Monitoring software like Prometheus and Grafana can be used to monitor the performance of the CI-CD pipeline

I have followed CICD pipelines using Jenkins, GitLab CI/CD, and AWS CodePipeline.

• Used Jenkins to automate build, test, and deployment processes for Java applications

• Implemented GitLab CI/CD for continuous integration and delivery of web applications

• Utilized AWS CodePipeline to create end-to-end pipelines for deploying serverless applications

• Integrated automated testing and code quality checks in all pipelines

• Implemented blue-green deployment strategy for zero-downtime deploym...read more

Continuous integration in Jenkins is achieved through the use of build triggers and pipelines.

• Jenkins allows developers to set up build triggers that automatically start a build process whenever changes are pushed to the repository.

• Build pipelines can be created in Jenkins to define the stages and actions required for continuous integration.

• Jenkins can integrate with version control systems like Git to fetch the latest code changes for each build.

• Automated tests can be includ...read more

Day to day activities of a DevOps Engineer

• Collaborating with development and operations teams

• Automating deployment processes

• Monitoring system performance and troubleshooting issues

• Managing infrastructure and cloud services

• Implementing security measures

• Continuous improvement of processes and systems

Accessing onprem artifacts in public cloud involves setting up a secure connection and using appropriate tools.

• Establish a secure VPN connection between onprem and public cloud

• Use tools like AWS Direct Connect or Azure ExpressRoute for dedicated connections

• Utilize hybrid cloud solutions like AWS Outposts or Azure Stack for seamless integration

Yes

• Groovy scripts are commonly used in Jenkins pipelines for automation and customization

• They allow for more complex logic and functionality compared to declarative pipelines

• Examples include defining stages, steps, and conditions in the pipeline script

Jenkins is an open-source automation server with features like continuous integration, build automation, and deployment.

• Continuous integration and delivery

• Build automation

• Distributed builds

• Extensibility through plugins

• Easy installation and configuration

• Support for various version control systems

• Integration with other tools and services

• Monitoring and reporting

• Security and access control

Webhooks are a way for applications to communicate with each other in real-time by sending HTTP requests.

• Webhooks allow applications to receive real-time notifications or data updates.

• They eliminate the need for constant polling by providing a push mechanism.

• Webhooks are commonly used in various scenarios like integrating third-party services, triggering events, or automating workflows.

• Examples include receiving notifications from GitHub when code is pushed, updating a chat a...read more

Continuous integration is a software development practice where developers frequently merge their code changes into a central repository.

• It involves automating the build, test, and deployment processes.

• It helps identify and fix integration issues early in the development cycle.

• It promotes collaboration and reduces the risk of conflicts between code changes.

• Popular tools for continuous integration include Jenkins, Travis CI, and CircleCI.

In Terraform, 'count' is used to create multiple instances of a resource based on a single configuration, while 'for_each' is used to create multiple instances of a resource based on a map or set of strings.

• Count is used with a static number to create multiple instances of a resource.

• For_each is used with a map or set of strings to create multiple instances of a resource.

• Count is more suitable for creating a fixed number of instances, while for_each is more flexible for dynam...read more

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

• Kubernetes is used to manage and automate the deployment of containerized applications.

• It provides features like automatic scaling, load balancing, and self-healing.

• Kubernetes allows for easy management of containers across multiple hosts and clusters.

• It provides a declarative approach to application deployment and management.

• Kuber...read more

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

• Kubernetes is used to manage and automate the deployment of containerized applications.

• It provides features like automatic scaling, load balancing, and self-healing.

• Kubernetes allows for easy management of containers across multiple hosts and clusters.

• It provides a declarative approach to application deployment and management.

• Kuber...read more

StatefulSet is used for stateful applications with stable, unique network identifiers. Deployment is for stateless applications.

• StatefulSet manages stateful applications with stable, unique network identifiers

• StatefulSet maintains a sticky identity for each pod, even if it is rescheduled

• Deployment is used for stateless applications that can be easily replaced or replicated

• Deployment manages stateless pods and can scale up or down based on demand

Integrating Git involves setting up a version control system for managing code changes.

• Install Git on the local machine

• Create a new repository on Git hosting service like GitHub or Bitbucket

• Clone the repository to the local machine using 'git clone'

• Add files to the repository using 'git add'

• Commit changes using 'git commit'

• Push changes to the remote repository using 'git push'

• Pull changes from the remote repository using 'git pull'

DevOps in cloud refers to the practice of using DevOps principles and practices in a cloud computing environment.

• Automating infrastructure provisioning and management

• Continuous integration and deployment

• Monitoring and logging in cloud environments

• Collaboration between development and operations teams

• Using tools like AWS, Azure, or Google Cloud Platform

CI/CD stands for Continuous Integration/Continuous Deployment. It is a software development practice that enables frequent and automated code integration, testing, and deployment.

• CI/CD is a set of practices and tools that automate the process of integrating code changes into a shared repository, testing them, and deploying them to production.

• Continuous Integration involves regularly merging code changes from multiple developers into a central repository, ensuring that the cha...read more

Docker is an open-source platform that allows you to automate the deployment, scaling, and management of applications using containerization.

• Docker is a containerization technology that packages applications and their dependencies into isolated containers.

• It provides a lightweight and portable environment for running applications consistently across different systems.

• Docker allows for easy deployment and scaling of applications, as containers can be quickly created, started, ...read more

DevOps is a software development approach that combines development and operations to improve collaboration and efficiency.

• DevOps aims to automate and streamline the software development lifecycle.

• It involves continuous integration, continuous delivery, and continuous deployment.

• DevOps promotes collaboration between development, operations, and other stakeholders.

• It emphasizes the use of infrastructure as code and configuration management tools.

• DevOps enables faster and more ...read more

Stash is a Git repository management tool that allows users to stash changes without committing them.

• Stash is a feature of Git that allows users to temporarily save changes without committing them to the repository.

• It is useful for when a user needs to switch to a different branch or work on a different feature without losing their current changes.

• Stash can also be used to save changes that are not yet ready to be committed, such as work-in-progress code.

• Stash can be accessed...read more

Kubernetes is an open-source container orchestration platform for automating deployment, scaling, and management of containerized applications.

• Kubernetes helps in automating the deployment, scaling, and management of containerized applications.

• It provides features like automatic scaling, self-healing, load balancing, and rolling updates.

• Kubernetes uses declarative configuration to define the desired state of the application and ensures that the current state matches the desir...read more

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 that controls multiple worker nodes.

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

• Worker nodes run containers and include components like kubelet, kube-proxy, and container runtime (e.g. Docker).

• Kubernetes uses labels and se...read more