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Amazon Web Services(AWS)

platform

Amazon's cloud computing platform providing on-demand infrastructure, storage, compute, and hundreds of managed services worldwide.

cloudamazoninfrastructure

Ansible

tool

An agentless automation tool for configuration management, application deployment, and task automation using YAML playbooks.

automationconfiguration-managementyaml

Apache Cassandra

tool

A distributed NoSQL database built for high availability and massive scalability across data centers.

databasenosqldistributed-systems

Apache CloudStack

platform

An open-source cloud computing platform for deploying and managing IaaS environments with built-in orchestration.

cloudiaasopen-source

Apache Foundation(ASF)

concept

A nonprofit organization providing governance, legal protection, and infrastructure for open-source software projects.

open-sourcegovernancecommunity

Apache Kafka

tool

A distributed event streaming platform for high-throughput, real-time data pipelines and streaming.

streamingmessagingdistributed-systems

Application Programming Interface(API)

concept

A set of rules and protocols that allows software applications to communicate with each other.

integrationdevelopmentprotocols

AsyncAPI

concept

A specification for defining and documenting event-driven and asynchronous APIs in a standardized way.

apiasyncspecification

Auth0

platform

A flexible identity platform for adding authentication and authorization to applications with minimal custom code.

identityiamauthentication

Authentication(AuthN)

concept

The process of verifying that a user or system is who they claim to be, typically through credentials like passwords or tokens.

securityidentityaccess-control

Authorization(AuthZ)

concept

The process of determining what actions or resources an authenticated user or system is permitted to access.

securityidentityaccess-control

Azure

platform

Microsoft's cloud platform offering compute, storage, networking, and managed services for building and running applications at scale.

cloudmicrosoftinfrastructure

Bare Metal

concept

A physical server dedicated to a single tenant with no virtualization layer, offering maximum performance and control.

infrastructurehostinghardware

Bash

tool

The Bourne Again Shell — the default command-line interpreter on most Linux distributions and the lingua franca of shell scripting.

shellterminaldevelopment

Basic Auth

concept

HTTP Basic Authentication sends a Base64-encoded username and password with each request. Simple but insecure without TLS.

securityauthenticationhttp

Bearer Token

concept

An access token sent in HTTP headers that grants the bearer access to protected resources without additional proof.

securityauthenticationapi

Cache

concept

A temporary high-speed data storage layer that reduces latency by serving frequently accessed data.

performancestorageoptimization

Ceph

tool

An open-source distributed storage system providing object, block, and file storage in a single unified platform.

storagedistributed-systemscloud-native

CI/CD(CI/CD)

practice

Continuous Integration and Continuous Delivery — the practice of automating code building, testing, and deployment.

automationpipelinedeployment

Claude Code

tool

Anthropic's agentic AI coding assistant that lives in your terminal, capable of editing files, running commands, and more.

aideveloper-toolscli

Codex

tool

OpenAI's agentic coding assistant CLI that can autonomously write, debug, and refactor code using GPT models.

aideveloper-toolscli

Container

concept

A lightweight, standalone package that includes everything needed to run a piece of software: code, runtime, and libraries.

containersvirtualizationisolation

Container Network Interface(CNI)

concept

A specification and plugin framework that defines how container runtimes configure networking for containers.

networkingkubernetescontainers

Container Registry

concept

A service for storing, managing, and distributing container images, acting as the library catalog for your packaged applications.

containersimagesregistry

Container Runtime Interface(CRI)

concept

A Kubernetes plugin interface that defines how the kubelet communicates with container runtimes to manage pod and container lifecycle.

containerskubernetesruntime

Container Storage Interface(CSI)

concept

A standard interface that enables container orchestrators to manage and provision storage from any compatible backend.

storagekubernetescontainers

containerd

tool

An industry-standard container runtime that manages the complete container lifecycle, from image transfer to execution and supervision.

containersruntimecloud-native

Continuous Delivery(CD)

practice

A practice where code changes are automatically built, tested, and prepared for release to production at any time.

deliveryautomationci-cd

Continuous Deployment

practice

A practice where every code change that passes automated tests is automatically released to production without manual intervention.

deploymentautomationci-cd

Database

concept

A system designed to store, organize, and retrieve structured or unstructured data efficiently.

storagedatainfrastructure

DevOps

methodology

A culture and set of practices that unifies software development and IT operations to shorten delivery cycles and improve reliability.

cultureautomationcollaboration

Docker

tool

A platform for building, shipping, and running applications in lightweight, portable containers.

containersvirtualization

eBPF(eBPF)

concept

A Linux kernel technology that lets you run sandboxed programs in the kernel without changing kernel code or loading modules.

linuxnetworkingobservability

Egress

concept

Outbound network traffic leaving a cluster, network, or security boundary toward external destinations.

networkingsecuritytraffic

Egress Gateway

concept

A dedicated, controlled exit point that routes and monitors all outbound traffic from a cluster or service mesh.

networkingsecurityservice-mesh

Entra ID

platform

Microsoft's cloud-based identity and access management service, formerly known as Azure Active Directory.

identitymicrosoftcloud

Ephemeral

concept

Describes short-lived, disposable resources designed to be created and destroyed on demand without lasting side effects.

cloud-nativecontainersinfrastructure

Firewall

concept

A network security device or software that monitors and filters incoming and outgoing traffic based on defined rules.

securitynetworking

Gateway

concept

A network entry point that routes, filters, and manages traffic between clients and backend services.

networkingapitraffic-management

Git

tool

A distributed version control system that tracks changes in source code, enabling collaboration and history management.

version-controlsource-codecollaboration

GitHub

platform

The world's most popular platform for hosting Git repositories, enabling collaboration, code review, and CI/CD workflows.

gitcollaborationci-cd

GitLab

platform

A complete DevOps platform delivering Git hosting, CI/CD pipelines, container registry, and security scanning in one tool.

gitdevopsci-cd

GitOps

methodology

An operational framework that uses Git as the single source of truth for declarative infrastructure and application delivery.

gitdeploymentautomation

Google Cloud Platform(GCP)

platform

Google's cloud computing platform known for data analytics, machine learning, and Kubernetes-native infrastructure services.

cloudgoogleinfrastructure

Grafana

tool

An open-source analytics and visualization platform for monitoring data, commonly paired with Prometheus.

monitoringvisualizationdashboards

GraphQL

concept

A query language for APIs that lets clients request exactly the data they need in a single request.

apiquery-languagefacebook

gRPC(gRPC)

concept

A high-performance, open-source RPC framework that uses HTTP/2 and Protocol Buffers for efficient communication.

apirpcperformance

Helm

tool

The package manager for Kubernetes that simplifies deploying and managing applications using reusable charts.

kubernetespackagingdeployment

Helm Chart

concept

A packaged collection of Kubernetes resource templates and configuration that Helm uses to deploy applications.

kubernetespackagingdeployment

HTTP(HTTP)

concept

The foundational application-layer protocol for transmitting hypermedia documents and powering communication on the World Wide Web.

protocolwebnetworking

Idempotency

concept

A property where performing an operation multiple times produces the same result as performing it once.

reliabilityapi-designinfrastructure

Infrastructure as Code(IaC)

concept

The practice of managing and provisioning infrastructure through machine-readable definition files rather than manual processes.

iacautomationbest-practices

Ingress

concept

Inbound network traffic entering a cluster or network, or the Kubernetes resource that manages external access to services.

networkingkubernetestraffic

Jenkins

tool

An open-source automation server for building, testing, and deploying software through customizable pipelines.

ci-cdautomationjava

JSON(JSON)

concept

A lightweight, human-readable data interchange format based on JavaScript object syntax, used everywhere from APIs to config files.

data-formatserializationweb

JSON Web Token(JWT)

concept

A compact, URL-safe token format for securely transmitting claims between parties, commonly used for authentication.

securityauthenticationtokens

JSON-RPC

concept

A lightweight, stateless RPC protocol that uses JSON for encoding requests and responses.

apirpcjson

Kubernetes(K8s)

platform

An open-source container orchestration platform that automates deploying, scaling, and managing containerized applications.

containersorchestrationcloud-native

Large Language Model(LLM)

concept

A neural network trained on massive text datasets that can generate, analyze, and reason about human language.

aimachine-learningnlp

Linux

operating-system

An open-source operating system kernel that powers the vast majority of servers, containers, and cloud infrastructure.

operating-systemopen-sourcekernel

Logs

concept

Recorded events and messages from applications and systems, providing a trail of what happened and when.

observabilitydebuggingmonitoring

Message Broker

concept

Middleware that routes, transforms, and delivers messages between distributed services.

messagingmiddlewareintegration

Messaging

concept

A pattern for asynchronous communication between services using messages passed through intermediaries.

distributed-systemsasyncintegration

Metrics

concept

Numerical measurements collected over time that quantify the behavior and performance of systems.

observabilitymonitoringperformance

Microservices

methodology

An architectural style where applications are built as a collection of small, independent services communicating over APIs.

architecturedistributed-systems

MLOps(MLOps)

methodology

A set of practices that combines machine learning, DevOps, and data engineering to deploy and maintain ML models in production.

machine-learningautomationai

MongoDB

tool

A document-oriented NoSQL database that stores data as flexible JSON-like documents.

databasenosqldocument-store

MySQL

tool

A widely used open-source relational database known for its speed and reliability.

databaserelationalopen-source

NoSQL Databases

concept

Non-relational databases designed for flexible schemas, horizontal scaling, and specific data models.

databasescalabilitydistributed-systems

OAuth 2.0(OAuth2)

concept

An authorization framework that lets third-party apps access resources on behalf of a user without exposing their credentials.

securityauthorizationidentity

Observability(o11y)

concept

The ability to understand a system's internal state from its external outputs: logs, metrics, and traces.

monitoringdebuggingsre

Okta

platform

A cloud-native identity platform providing SSO, MFA, and lifecycle management for workforce and customer identity.

identityiamsso

OLAP(OLAP)

concept

A computing approach optimized for complex analytical queries across large datasets, using multidimensional data models.

analyticsdatadatabases

On-Call

practice

A rotation practice where engineers are designated to respond to production incidents and alerts outside business hours.

reliabilityincident-responsesre

Open Container Initiative(OCI)

concept

An open governance structure for creating industry standards around container image formats and runtime specifications.

containersstandardscloud-native

Open Worldwide Application Security Project(OWASP)

concept

A nonprofit foundation producing widely adopted resources, tools, and standards for application security.

securitybest-practicesvulnerabilities

OpenAPI Specification

concept

A standard, language-agnostic specification for describing RESTful APIs in a machine-readable format.

apidocumentationspecification

OpenCode

tool

An open-source AI coding assistant for the terminal, providing an extensible and transparent alternative to proprietary tools.

aideveloper-toolsopen-source

OpenID Connect(OIDC)

concept

An identity layer on top of OAuth 2.0 that lets applications verify user identity and obtain basic profile information.

securityauthenticationidentity

OpenStack

platform

An open-source cloud platform for building and managing public and private clouds with modular, interoperable services.

cloudiaasopen-source

OpenTelemetry(OTel)

tool

A vendor-neutral, open-source observability framework for generating, collecting, and exporting telemetry data.

observabilitytelemetrycloud-native

OpenTelemetry Protocol(OTLP)

concept

The native protocol for transmitting telemetry data between OpenTelemetry components and backends.

observabilityprotocoltelemetry

Platform Engineering

methodology

The discipline of building and maintaining internal developer platforms to improve developer experience and productivity.

developer-experienceautomationplatforms

Podman

tool

A daemonless, rootless container engine that provides a Docker-compatible CLI without requiring a background service to run.

containersdaemonlesssecurity

Port Forwarding

concept

Redirecting network traffic from one address and port to another, commonly used for local debugging of remote or containerized services.

networkingdebuggingdevelopment

PostgreSQL

tool

A powerful open-source relational database known for standards compliance and extensibility.

databaserelationalopen-source

Prometheus

tool

An open-source monitoring and alerting toolkit designed for reliability and scalability in cloud-native environments.

monitoringmetricsalerting

Protocol Buffers

concept

A language-neutral, platform-neutral binary serialization format developed by Google for structured data.

serializationgrpcperformance

Puppet

tool

A configuration management tool that uses declarative code to automate infrastructure provisioning and system configuration.

configuration-managementautomationinfrastructure

QUIC(QUIC)

concept

A modern transport protocol built on UDP that provides multiplexed, encrypted connections and powers HTTP/3.

protocolnetworkingperformance

RabbitMQ

tool

A reliable open-source message broker supporting multiple messaging protocols like AMQP.

messagingqueueamqp

Remote Procedure Call(RPC)

concept

A protocol that allows a program to execute a procedure on a remote server as if it were a local function call.

networkingprotocolsdistributed-systems

Representational State Transfer(REST)

concept

An architectural style for designing networked applications using stateless HTTP methods and resource-based URLs.

apiarchitecturehttp

SaltStack

tool

An event-driven automation and configuration management platform built for speed and scale using a master-minion architecture.

configuration-managementautomationevent-driven

SCIM(SCIM)

concept

A protocol for automating user identity provisioning and deprovisioning across multiple systems and services.

securityidentityprovisioning

SDK(SDK)

concept

A collection of tools, libraries, and documentation that helps developers build software for a specific platform or service.

developmentlibrariestooling

Secure Shell(SSH)

concept

A cryptographic network protocol for secure remote access, command execution, and tunneling over untrusted networks.

securitynetworkingprotocols

Server-Sent Events(SSE)

concept

A server push technology enabling a client to receive automatic updates from a server over a single, long-lived HTTP connection.

protocolreal-timestreaming

Serverless

concept

A cloud execution model where the provider manages infrastructure and dynamically allocates resources per request.

cloudarchitecturefaas

Service Level Agreement(SLA)

concept

A formal contract between a service provider and customer defining expected service levels and consequences.

reliabilitybusinesscontracts

Service Level Indicator(SLI)

concept

A quantitative measure of a specific aspect of service reliability, like latency, availability, or error rate.

reliabilitymetricssre

Service Level Objective(SLO)

concept

A target value or range for a service level measured by an SLI, like 99.9% availability over 30 days.

reliabilitysremetrics

Service Mesh

concept

A dedicated infrastructure layer for managing service-to-service communication, providing observability, security, and reliability.

networkinginfrastructureistio

Site Reliability Engineering(SRE)

methodology

A discipline that applies software engineering practices to infrastructure and operations to build scalable, reliable systems.

reliabilityoperationsgoogle

SOAP(SOAP)

concept

A protocol for exchanging structured information in web services using XML-based messaging over HTTP and other transports.

apiprotocolxml

Stream

concept

A continuous, ordered flow of data or events processed incrementally in real time.

streamingreal-timedata

Structured Query Language(SQL)

concept

The standard language for managing and querying relational databases.

databasequery-languagedata

Swagger

tool

A suite of API development tools and the original name for the specification now known as OpenAPI.

apidocumentationopenapi

TCP(TCP)

concept

A connection-oriented transport protocol that provides reliable, ordered delivery of data between applications over IP networks.

networkingprotocoltransport

Terraform(TF)

tool

An infrastructure-as-code tool that lets you define and provision cloud resources using declarative config files.

iacprovisioninghashicorp

TLS(TLS)

concept

A cryptographic protocol that provides end-to-end encryption, authentication, and data integrity for communications over networks.

securityencryptionnetworking

Traces

concept

Records of requests as they flow through distributed systems, showing the path and timing across services.

observabilitydistributed-systemsdebugging

UDP(UDP)

concept

A connectionless transport protocol that sends datagrams without guarantees of delivery, ordering, or duplicate protection.

networkingprotocoltransport

Virtual Machine(VM)

concept

A software-based emulation of a physical computer that runs its own OS and applications in an isolated environment.

virtualizationinfrastructurecloud

Vitess

tool

A database clustering system for horizontal scaling of MySQL, originally built at YouTube and now a CNCF graduated project.

databasesscalingcloud-native

VPN(VPN)

concept

A technology that creates encrypted tunnels between networks, enabling secure remote access and private communication.

networkingsecurityencryption

VPS(VPS)

concept

A virtualized server environment that provides dedicated resources on shared physical hardware with root-level access.

infrastructurehostingvirtualization

Web Application Firewall(WAF)

concept

A security layer that filters and monitors HTTP traffic to protect web applications from common attacks.

securitynetworkingprotection

WebAssembly(WASM)

concept

A portable, high-performance binary instruction format designed as a compilation target for multiple programming languages.

runtimeperformanceportability

WebAssembly System Interface(WASI)

concept

A standardized system interface that lets WebAssembly modules securely access OS-level resources like files and networking.

runtimewasmportability

WebSockets

concept

A protocol providing full-duplex, persistent communication channels over a single TCP connection between client and server.

protocolreal-timenetworking

XML(XML)

concept

A markup language for encoding documents and data in a format that is both human-readable and machine-readable.

data-formatserializationlegacy

YAML(YAML)

concept

A human-readable data serialization format widely used for configuration files in DevOps tools and Kubernetes manifests.

configurationdata-formatserialization

Z Shell(ZSH)

tool

An extended Bourne shell with powerful features for interactive use, scripting, and customization.

shellterminaldevelopment