DevOps Dictionary

What is Fargate? Fargate is a serverless compute engine for containers offered by Amazon Web Services (AWS) that allows you to run containers without having to manage the underlying infrastructure. Fargate removes the need to provision, configure, and manage servers, enabling developers to focus on building applications instead of managing...

What is Fault Tolerance? Fault Tolerance is the ability of a system, application, or infrastructure to continue functioning without disruption, even when one or more components fail. It ensures high availability and reliability by implementing redundancy, failover mechanisms, and error-handling strategies. How Does Fault Tolerance Work? Fault tolerance is achieved...

What is File Storage? File Storage is a type of data storage where data is organized and stored as files within a hierarchical structure, similar to a traditional file system. File storage allows users to store, retrieve, and manage data in directories and subdirectories, making it suitable for applications requiring...

What is a Firewall? Firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall acts as a barrier between a trusted internal network and untrusted external networks, such as the internet, and helps protect systems from unauthorized access, malicious...

What is Fluentd?Fluentd is an open-source data collection and logging tool designed to unify and simplify log management. It collects, transforms, and forwards log data from various sources to multiple destinations, such as databases, monitoring systems, or cloud storage. Fluentd is widely used in Kubernetes environments to manage logs from...

What is GCP? Google Cloud Platform (GCP) is a suite of cloud computing services provided by Google. It offers scalable infrastructure, data storage, machine learning, and networking solutions that allow businesses to build, deploy, and manage applications in the cloud. How Does GCP Work? GCP provides a fully managed cloud...

GitHub Actions is a powerful automation and CI/CD (Continuous Integration and Continuous Deployment) tool provided by GitHub. It allows developers to automate, build, test, and deploy their code directly from their GitHub repositories. GitHub Actions uses a system of workflows defined in YAML files that can be triggered by various...

Grafana is an open-source analytics and visualization platform used to monitor, query, and visualize metrics collected from various data sources. It provides users with interactive dashboards and real-time insights into the performance and health of their systems, applications, and infrastructure. Grafana is widely used in conjunction with monitoring tools like...

What is Gremlin? Gremlin is a chaos engineering platform that helps organizations test the resilience of their systems by intentionally introducing failures and disruptions into their infrastructure. Gremlin allows teams to simulate various types of failures—such as server crashes, network latency, and resource exhaustion—across cloud, on-premises, or hybrid environments. The...

What is HAProxy? HAProxy (High Availability Proxy) is an open-source, high-performance load balancer and reverse proxy server designed to distribute traffic across multiple servers efficiently. It is widely used to enhance the scalability, availability, and reliability of web applications by balancing client requests among backend servers. HAProxy supports various protocols,...

Helm is a package manager for Kubernetes that helps developers and operators define, install, and manage applications and services on Kubernetes clusters. Helm simplifies the deployment of complex Kubernetes applications by packaging them as charts, which are pre-configured Kubernetes resources (e.g., deployments, services, ConfigMaps) that can be easily deployed and...

What is High Availability (HA)? High Availability (HA) refers to the ability of a system, application, or infrastructure to remain operational and accessible with minimal downtime. It ensures continuous service availability by eliminating single points of failure (SPOF) and implementing redundancy, failover mechanisms, and automated recovery processes. How Does High...

What is Horizontal Pod Autoscaler? The Horizontal Pod Autoscaler (HPA) is a Kubernetes resource that automatically adjusts the number of pods in a deployment, replica set, or stateful set based on observed metrics such as CPU utilization, memory usage, or custom metrics. HPA ensures that applications can dynamically scale up...

What is Horizontal Scaling? Horizontal Scaling, also known as scaling out, is the process of adding more instances of servers, virtual machines, or containers to distribute workloads and increase system capacity. It improves system performance, availability, and fault tolerance by enabling multiple instances to handle requests simultaneously. How Does Horizontal...

What is HTTPS? HTTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP, the protocol used for transmitting data between a web server and a web browser. HTTPS uses SSL/TLS encryption to protect the integrity and confidentiality of data as it travels over the internet, ensuring that sensitive information...

What is a Hybrid Cloud? A Hybrid Cloud is a cloud computing model that combines both public cloud and private cloud environments, allowing data and applications to be shared between them. It provides greater flexibility, scalability, and control by leveraging the benefits of both cloud types. How Does a Hybrid...

What is IaaS? Infrastructure as a Service (IaaS) is a cloud computing model that provides on-demand access to virtualized computing resources, such as servers, storage, networking, and operating systems. IaaS eliminates the need for organizations to purchase and maintain physical hardware, enabling scalable and cost-effective infrastructure management. How Does IaaS...

What is IAM? Identity and Access Management (IAM) is a security framework in cloud environments (such as Amazon Web Services, or AWS) that helps organizations securely manage users, roles, and permissions. IAM allows administrators to define who can access specific resources, under what conditions, and what actions they can perform....

What is an IAM Policy? IAM Policy is a document that defines permissions for actions that can be performed on AWS resources. Policies specify who can perform specific actions (like read, write, or delete) on particular resources (like S3 buckets or EC2 instances). IAM policies are written in JSON format...

What is an IAM Role? IAM Role is an AWS (Amazon Web Services) Identity and Access Management (IAM) resource that defines a set of permissions that are assumed by trusted entities, such as users, applications, or AWS services. Roles enable users or services to perform specific tasks in AWS without...