DevOps Dictionary

Docker is an open-source platform that enables developers to automate the deployment, scaling, and management of applications inside lightweight, portable containers. Containers package an application and its dependencies together into a single unit, ensuring that the software runs consistently across different environments. Docker has become a foundational tool in DevOps...

What is a Dockerfile? A Dockerfile is a text file containing a set of instructions to build a Docker image. It acts as a blueprint for creating containerized applications, specifying the base image, environment configurations, dependencies, and commands to run. Dockerfiles are fundamental to Docker's functionality, allowing developers to create...

What is EBS? Amazon Elastic Block Store (EBS) is a scalable, high-performance block storage service provided by Amazon Web Services (AWS) for use with Amazon EC2 instances. EBS allows users to create and attach persistent storage volumes to EC2 instances, providing reliable and low-latency block-level storage for applications and data....

What is EC2 (Elastic Compute Cloud)? EC2 (Elastic Compute Cloud) is a web service offered by Amazon Web Services (AWS) that provides scalable computing capacity in the cloud. It allows users to run virtual machines, called instances, on-demand without the need to invest in physical hardware. EC2 is designed to...

What is Edge Computing? Edge Computing is a distributed computing paradigm that brings computation and data storage closer to the location where it is needed, typically at or near the "edge" of the network. Instead of relying on a centralized data center, edge computing processes data locally on devices, sensors,...

What is an Edge Location? Edge Location refers to a physical or logical data center located closer to the end-users of a service, designed to reduce latency by caching content and providing services more efficiently. In cloud computing and content delivery networks (CDNs), edge locations are used to deliver content...

What is Egress? Egress refers to the process of data leaving a network or system and traveling to an external destination. In networking, egress typically involves data moving from a private network to the internet, or from one network to another. Egress is the opposite of ingress, which refers to...

What is EKS (Elastic Kubernetes Service)? EKS (Elastic Kubernetes Service) is a fully managed service by Amazon Web Services (AWS) that makes it easy to run Kubernetes on AWS without needing to install and operate your own Kubernetes control plane or nodes. EKS automatically manages the Kubernetes master nodes, freeing...

What is EKS (Elastic Kubernetes Service)? EKS (Elastic Kubernetes Service) is a fully managed service by Amazon Web Services (AWS) that makes it easy to run Kubernetes on AWS without needing to install and operate your own Kubernetes control plane or nodes. EKS automatically manages the Kubernetes master nodes, freeing...

What is Elastic Beanstalk? Elastic Beanstalk is a Platform-as-a-Service (PaaS) offering from Amazon Web Services (AWS) that simplifies the process of deploying, managing, and scaling web applications and services. Elastic Beanstalk automates the infrastructure management tasks such as load balancing, scaling, and monitoring, allowing developers to focus on writing code...

What is the Elastic Stack (ELK)? The Elastic Stack, commonly known as ELK, is a collection of open-source tools designed for searching, analyzing, and visualizing log and event data in real time. The stack comprises three main components: Elasticsearch: A search and analytics engine that stores, indexes, and retrieves data...

What is Elasticity? Elasticity in the context of cloud computing refers to the ability of a system or application to automatically scale resources up or down based on demand. It allows organizations to dynamically adjust their cloud infrastructure to efficiently handle changing workloads, ensuring that resources are optimized for performance...

What is Elasticsearch? Elasticsearch is a distributed, open-source search and analytics engine designed for storing, indexing, and retrieving large volumes of data quickly and efficiently. It is the core component of the Elastic Stack (ELK) and is widely used for applications such as full-text search, log analysis, real-time monitoring, and...

ELK Stack is a powerful collection of open-source tools that is widely used for searching, analyzing, and visualizing log data in real-time. The stack is composed of three main components: Elasticsearch, Logstash, and Kibana, each playing a crucial role in the data processing pipeline. The ELK Stack is often used...

What is Encryption at Rest? Encryption at Rest is the process of encrypting data when it is stored on disk or any other persistent storage medium, such as databases, file systems, or cloud storage. This ensures that data is protected from unauthorized access, even if the physical storage medium (e.g.,...

What is Encryption in Transit? Encryption in Transit refers to the process of encrypting data while it is being transmitted over a network or between systems. This ensures that sensitive information, such as passwords, financial details, and personal data, remains secure while it is being transferred from one location to...

What is Envoy? Envoy is an open-source, high-performance proxy designed for cloud-native applications and microservices architectures. It functions as a service mesh data plane, handling service-to-service communication with advanced networking capabilities such as load balancing, traffic management, observability, and security. Originally developed by Lyft, Envoy is now widely adopted in...

What is etcd? etcd is a distributed, key-value store used by Kubernetes to store all cluster data. It acts as the single source of truth for the cluster, maintaining information about the configuration, state, and metadata of all Kubernetes resources. etcd is a critical component of the Kubernetes control plane,...

What is FaaS? Function as a Service (FaaS) is a cloud computing model that allows developers to execute code in response to events without managing infrastructure. FaaS enables applications to scale automatically and only charges for the actual execution time of functions, making it cost-efficient and ideal for event-driven architectures....

What is Failover? Failover is the process of automatically switching to a standby system, server, or network when a primary component fails. It ensures high availability and minimizes downtime by redirecting operations to a backup resource without manual intervention. How Does Failover Work? Failover is triggered when a failure is...