DevOps Dictionary

What is Kubernetes Dashboard? The Kubernetes Dashboard is a web-based user interface (UI) that allows users to manage and interact with their Kubernetes clusters visually. It provides an intuitive way to deploy containerized applications, monitor resource usage, and manage cluster resources without relying solely on command-line tools like kubectl. The...

What is a Kubernetes Master?The Kubernetes Master is the central control entity of a Kubernetes cluster, responsible for managing the cluster's overall state and coordinating all the activities of the worker nodes. The master consists of several components that handle key tasks such as scheduling, maintaining the desired state of...

What is a Kubernetes Node? A Kubernetes Node is a physical or virtual machine within a Kubernetes cluster that runs the necessary components to host and manage pods. Nodes are the workers that perform the tasks assigned by the Kubernetes control plane, and they are essential for running the containers...

What is a Kubernetes Pod?A Kubernetes Pod is the smallest and most basic deployable unit in Kubernetes. It represents a single instance of a running process in your cluster and can contain one or more tightly coupled containers that share the same network namespace, storage volumes, and configuration. Pods are...

What is KubeScheduler? KubeScheduler is a core component of the Kubernetes control plane responsible for assigning newly created pods to appropriate nodes within a cluster. It ensures that workloads are distributed efficiently across the cluster based on resource requirements, constraints, and scheduling policies. The KubeScheduler plays a vital role in...

What is Lambda? Lambda is a serverless computing service offered by Amazon Web Services (AWS) that allows you to run code without provisioning or managing servers. Lambda automatically handles the infrastructure, scaling, and execution environment for you. With Lambda, you can write small, event-driven functions that are triggered by specific...

What is Latency? Latency refers to the delay or lag between sending a request and receiving a response, often measured in milliseconds (ms). It is a critical factor in determining the performance of networks, applications, and devices, as higher latency leads to slower response times and degraded user experience. How...

What is Linkerd? Linkerd is an open-source service mesh designed to manage, secure, and optimize communication between microservices in cloud-native applications. It provides features such as traffic management, observability, and security, allowing developers to build resilient, scalable, and reliable distributed systems. Linkerd is lightweight, easy to deploy, and integrates seamlessly...

What is a Load Balancer?A Load Balancer in Kubernetes is a mechanism used to distribute incoming network traffic across multiple pods or services to ensure reliability, scalability, and high availability. It provides a single point of access for clients while automatically balancing the workload to prevent any single pod or...

What is a Load Balancer? Load Balancer is a network device or service that distributes incoming network traffic across multiple servers to ensure high availability, reliability, and optimal resource utilization. By spreading the load, it helps prevent any single server from becoming overwhelmed, thus ensuring that applications remain responsive and...

What is Load Balancing? Load Balancing is the process of distributing incoming network traffic across multiple servers to ensure optimal performance, high availability, and reliability. It prevents overloading a single server, reduces response times, and improves system efficiency by directing requests to the best available server. How Does Load Balancing...

What are Logs? Logs are time-stamped records of events, actions, and system activities generated by applications, servers, and infrastructure components. They provide detailed insights into system behavior, helping teams monitor performance, troubleshoot issues, and maintain security. How Do Logs Work? Logs are automatically generated by operating systems, applications, and network...

What is Logstash? Logstash is an open-source data processing pipeline that collects, transforms, and sends data to a variety of destinations. It is a core component of the Elastic Stack (ELK), commonly used to ingest and preprocess log and event data before storing it in Elasticsearch or forwarding it to...

What are Metrics? Metrics are numerical measurements that provide quantitative insights into the performance, health, and resource usage of applications, infrastructure, and IT systems. They are used for monitoring and observability, helping teams track system behavior, detect anomalies, and optimize performance in real time. How Do Metrics Work? Metrics are...

What is MFA? Multi-Factor Authentication (MFA) is a security process that requires users to provide two or more forms of verification to access an account or system. MFA enhances security by requiring something the user knows (e.g., a password), something the user has (e.g., a mobile device), or something the...

Microservices is an architectural style in software development where an application is broken down into smaller, independent services that work together to fulfill the overall functionality of the system. Each service is self-contained, focuses on a specific business capability, and communicates with other services via well-defined APIs. This approach contrasts...

What is Minikube? Minikube is a lightweight tool that allows you to run a single-node Kubernetes cluster locally on your machine. It is primarily used for development, testing, and learning Kubernetes without requiring access to a full-scale cloud environment. Minikube supports various operating systems, including Linux, macOS, and Windows, making...

What is Monitoring? Monitoring is the process of collecting, analyzing, and visualizing data from IT systems, applications, and infrastructure to ensure performance, availability, and security. It involves tracking metrics, logs, and events to detect issues, optimize resource usage, and maintain system health. Monitoring is essential in modern cloud-native and DevOps...

A monolith refers to a traditional software architecture where all components of an application are tightly coupled and interconnected, forming a single, unified codebase. In a monolithic architecture, all of the application's functionalities—such as user interface (UI), business logic, and data management—are part of a single, large executable or codebase,...

What is Multi-Cloud? Multi-Cloud is a cloud computing strategy where an organization uses services from multiple cloud providers, such as AWS, Microsoft Azure, and Google Cloud Platform, to optimize performance, cost, and resilience. Unlike Hybrid Cloud, which integrates private and public clouds, Multi-Cloud focuses on using multiple public or private...