DevOps Glossary

Discover and learn all DevOps terms here.

Active Directory

Microsoft Active Directory provides centralized identity, authentication, and access management for users, groups, and computers in Windows domains.

Ansible

Open-source automation tool that uses playbooks to configure systems, deploy applications, and enforce consistent settings across servers.

API Gateway

API Gateway is a managed front door for backend APIs that routes client requests and handles common tasks like authentication, rate limiting, and monitoring.

Argo CD

GitOps continuous delivery controller for Kubernetes that syncs applications from Git to clusters and detects configuration drift.

AWS

AWS is Amazon’s cloud platform providing on-demand compute, storage, networking, and managed services for building and running applications.

AWS App Mesh

AWS App Mesh controls service-to-service traffic between microservices on AWS, enabling routing, observability, and resilience policies.

AWS IoT

Managed AWS service that securely connects IoT devices to the cloud and routes their data for processing and monitoring.

AWS Lambda

AWS Lambda runs event-triggered code on AWS without managing servers, scaling automatically for APIs, queues, and file processing.

Branching

Creating a separate copy of the code so people can work on changes without messing up the main version, then merge it back when it’s ready.

Chaos Engineering

Chaos Engineering is a practice of safely injecting failures into a system to observe its behavior and improve reliability.

Cloud

Remote internet servers you use to store and run data and apps without needing your own computer or hardware.

Container

A lightweight package that bundles an app with everything it needs so it runs the same way anywhere.

Container Registry

A central place to store, version, and share container images so apps can be pulled and run anywhere.

Continuous Delivery

Continuous Delivery automates testing and packaging each code change so releases can be deployed to production safely and quickly.

Continuous Integration

Regularly merging code and testing to catch issues early.

Custom Resource Definition (CRD)

A Kubernetes API extension that lets you define new resource types so you can manage your own custom components like built-in Kubernetes objects.

DAST (Dynamic Application Security Testing)

Automated security testing that attacks a running app from the outside, like a hacker would, to find vulnerabilities.

Development Environment

A safe space to write, run, and test code before it goes live.

DevOps

Practices and culture uniting development and operations to automate delivery and improve software reliability and deployment speed.

Docker

A tool that packages an app and everything it needs into a small, isolated container so it runs the same anywhere.

eBPF

A Linux kernel feature that lets you run tiny safe programs inside the kernel to watch and sometimes control what the system is doing.

Elasticsearch

Elasticsearch is a distributed search and analytics engine for fast, scalable data indexing and retrieval.

Error Budget

The allowed amount of downtime or errors a service can have and still hit its reliability target (SLO).

Feature Flag

A switch in configuration that turns a feature on or off in a running app without changing or redeploying code.