Engineering Glossary

From fundamental principles to cutting-edge practices, this glossary covers the full spectrum of software engineering terminology.

DevOps
Cloud Computing
Git
Containerization & Orchestration

Docker Container

A lightweight, portable unit that packages an application and its dependencies, allowing it to run consistently across different environments.
DevOps

Docker Log Management

Process of collecting, storing, and analyzing logs generated by Docker containers.
DevOps

Dokku

Mini-Heroku powered by Docker, helping developers quickly deploy their applications.
DevOps

Domain Drive Design (DDD)

Software design approach focusing on modeling software to match a domain according to input from domain experts.
DevOps

Drone

Cloud-native continuous integration and delivery platform that uses a simple YAML configuration file to define and execute pipelines.
DevOps

Dynamic Application Security Testing (DAST)

Security testing methodology that analyzes a running application to find vulnerabilities.
DevOps

Dynamic Infrastructure

IT infrastructure that can be programmatically allocated and managed, often associated with cloud computing and Infrastructure as Code.
DevOps

Dynatrace

Platform for application performance management, AI operations, cloud infrastructure monitoring, and digital experience management.
DevOps

EC2

Amazon Elastic Compute Cloud; web service providing resizable compute capacity in the cloud.
DevOps

EKS

Managed Kubernetes service for easy deployment on AWS without the need to install and operate your own Kubernetes clusters.
DevOps

Edge Computing

Distributed computing paradigm that brings computation and data storage closer to the location where it is needed.
DevOps

ElasticSearch

Distributed, RESTful search and analytics engine capable of addressing a growing number of use cases.
DevOps

Elasticity

Ability of a system to automatically scale up or down based on demand, crucial for efficient resource utilization in cloud environments.
DevOps

Emergent Design

Design approach where the architecture of a system evolves gradually as the system is developed.
DevOps

Enabling Team

Group that helps other teams to deliver software more effectively, often by providing tools and platforms.
DevOps

Encapsulation

Bundling of data with the methods that operate on that data, restricting direct access to some of an object's components.
DevOps

End-to-End Testing (EE Testing)

Methodology used to test whether the flow of an application is performing as designed from start to finish.
DevOps

Endpoint Security

Approach to protecting computer networks that are remotely bridged to client devices.
DevOps

Enterprise Application Integration (EAI)

Use of software and architectural principles to integrate enterprise applications.
DevOps

Enterprise Security

Overarching strategy and implementation of security measures across an entire organization.
DevOps

Environment

Set of conditions under which a piece of software is developed, tested, or run, including hardware, configuration, and other software.
DevOps

Environment Variable

Dynamic-named value that can affect the way running processes will behave on a computer.
DevOps

Environments

Different setups where software can be run, such as development, testing, staging, and production.
DevOps

Envoy

High-performance distributed proxy designed for cloud-native applications, often used as a service mesh component.
DevOps

Ephemeral Environments

Temporary, disposable environments created on-demand for testing or development, ensuring consistency and isolation.
DevOps

Error Budget

Acceptable amount of unplanned downtime or errors a service can experience without consequences.
DevOps

Error Log

Record of error messages generated by a software application or system, crucial for troubleshooting and monitoring.
DevOps

Error Tracking

Process of identifying, recording, and analyzing errors in software applications to improve reliability and user experience.
DevOps

Eucalyptus

Open-source software for building AWS-compatible private and hybrid cloud computing environments.
DevOps

Event Log

Record of events taking place in the execution of a system to provide an audit trail.
DevOps

Event-Driven Architecture (EDA)

Design paradigm in which the flow of the program is determined by events such as user actions, sensor outputs, or messages from other programs.
DevOps

Everything as Code (EaC)

Approach to managing all aspects of IT infrastructure and operations through code.
DevOps

Excessive Data Exposure

Security issue where an API returns more data than necessary, potentially revealing sensitive information.
DevOps

Exploratory Testing

Approach to software testing that emphasizes the tester's freedom and creativity to uncover issues.
DevOps

FAI (Fully Automatic Installer)

Tool for unattended mass installation of Linux systems, streamlining the process of setting up multiple machines.
DevOps

Fabric

Python library and command-line tool for streamlining the use of SSH for application deployment or systems administration tasks.
DevOps

Fail Fast

Design principle promoting immediate reporting of failures to enable quick detection and resolution of issues.
DevOps

Failed Builds

Instances where the compilation or integration process of software fails due to errors.
DevOps

False Positive

Error in evaluation where a condition is mistakenly flagged as true when it is actually false.
DevOps

Fargate

AWS serverless compute engine for containers that works with both Amazon ECS and Amazon EKS.
DevOps

Fault Tolerance

Property that enables a system to continue operating properly in the event of the failure of some of its components.
DevOps

Fear-driven Development

Anti-pattern where developers make decisions based on fear rather than best practices or data.
DevOps

Feature Branching

Practice of creating a separate branch in version control for each feature during development.
DevOps

Feature Flagging

Technique allowing teams to modify system behavior without changing code, enabling gradual rollouts and A/B testing.
DevOps

Feature Flags

Technique in software development that turns certain functionality on and off during runtime, without deploying new code.
DevOps

Feature Management

Practice of using feature flags to control and manage the lifecycle of features in software applications.
DevOps

Feature Toggle

Technique in software development for turning features on or off quickly without changing code.
DevOps

Fig

Tool for defining and running multi-container Docker applications, now replaced by Docker Compose.
DevOps

File Inclusion

Vulnerability that allows an attacker to include a file, usually exploiting dynamic file inclusion mechanisms implemented in the target application.
DevOps

FinDevOps

Application of DevOps principles to financial services, emphasizing security and compliance.
DevOps

FinOps

Practice bringing financial accountability to cloud spending, enabling teams to balance speed, cost, and quality in business decisions.
DevOps

First Input Delay (FID)

Measure of responsiveness that quantifies the experience users feel when trying to interact with unresponsive pages.
DevOps

Five Nines

Discover the gold standard of system reliability: "five nines" uptime. Learn what 99.999% availability means, its importance, and the challenges in achieving this elite DevOps goal.
DevOps

Flaky Test

Test that sometimes passes and sometimes fails without any code changes, often causing frustration in CI/CD pipelines.
DevOps

Flow

The smooth, continuous movement of code from development to production, emphasizing automation, collaboration, and rapid feedback to optimize software delivery.
DevOps

Flow Metrics

Measurements used to understand and optimize the flow of work through a system, crucial in lean and agile methodologies.
DevOps

Flutter

Google's UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase.
DevOps

Flynn

Open-source platform designed to simplify deploying and maintaining applications, offering a heroku-like experience using Docker containers.
DevOps

Foreman

Open-source tool for complete lifecycle management of physical and virtual servers, automating repetitive tasks and simplifying provisioning.
DevOps

Four Key Metrics

Set of metrics (lead time, deployment frequency, mean time to restore, change failure rate) used to measure software delivery performance.
DevOps

Four Nines

Explore the concept of "four nines" in system reliability. Learn what 99.99% uptime means, its importance in DevOps, and strategies to achieve this high availability standard.
DevOps

Four-eyes Principle

Security measure requiring two individuals to approve or perform an action, reducing the risk of fraud or errors.
DevOps

Fpm

Tool to easily build packages such as rpms, debs, and more, simplifying the process of creating software packages for different systems.
DevOps

Full Stack Observability

Comprehensive visibility into all parts of a software system, from front-end to back-end.
DevOps

Function-as-a-Service (FaaS)

Cloud computing service that allows execution of code in response to events without complex infrastructure.
DevOps

Functional Testing

Type of testing that verifies that each function of the software application operates according to the specification.
DevOps

Functions as a Service

Cloud computing execution model where developers run and manage application functionalities without the complexity of building and maintaining infrastructure.
DevOps

Fuzz Testing

Automated software testing technique that involves providing invalid, unexpected, or random data as inputs to a computer program.
DevOps

Gain Privileges

Process or action of obtaining higher levels of access or permissions in a system.
DevOps

Ganglia

Scalable distributed monitoring system for high-performance computing systems such as clusters and grids.
DevOps

Gemba

Japanese term meaning "the actual place," used in management to emphasize the importance of direct observation.
DevOps

General Data Protection Regulation (GDPR)

EU law on data protection and privacy for all individuals within the European Union and the European Economic Area.
DevOps

Gift Card Fraud

Unauthorized or deceptive use of gift cards for financial gain, often involving stolen card numbers or exploitation of card systems.
DevOps

Git Branch

Lightweight movable pointer to a commit in Git version control, allowing for parallel development and experimentation.
DevOps

Git Repository

Storage location for a Git project, containing all the files and their revision history.
DevOps

GitHub

Web-based hosting service for version control using Git, offering collaboration features, code review, and integration with various development tools.
DevOps

GitHub Actions

GitHub's built-in continuous integration and continuous delivery (CI/CD) platform, allowing automated build, test, and deployment workflows.
DevOps

GitLab

Web-based DevOps lifecycle tool that provides a Git-repository manager with wiki, issue-tracking and CI/CD pipeline features.
DevOps

GitOps

Framework applying DevOps best practices like version control, collaboration, compliance, and CI/CD to infrastructure automation.
DevOps

GitOps Operator

Software agent that implements GitOps practices, reconciling the desired state in Git with the actual state of the system.
DevOps

Gitflow Workflow

Git workflow that defines a strict branching model designed around the project release.
DevOps

Gitlab CI

GitLab's built-in Continuous Integration/Continuous Deployment tool, allowing automated testing and deployment of code changes.
DevOps

GoCD

Open-source continuous delivery server to model and visualize complex workflows.
DevOps

Golden Image

Pre-configured template for a virtual machine, used to create standardized instances.
DevOps

Google App Engine

Platform as a Service for developing and hosting web applications in Google-managed data centers.
DevOps

Google Cloud Platform (GCP)

Suite of cloud computing services running on the same infrastructure that Google uses internally.
DevOps

Governance

The policies, controls, and standards to ensure compliance, security, and quality across the software delivery pipeline while maintaining agility and efficiency.
DevOps

Gradle

Powerful build automation tool that supports multi-language development and offers a flexible, plugin-based architecture for customization.
DevOps

Grafana

Open-source platform for monitoring and observability, allowing users to visualize, alert on, and understand metrics from various data sources.
DevOps

Graphite

Monitoring tool that stores numeric time-series data and renders graphs of this data on demand.
DevOps

HIPAA

Health Insurance Portability and Accountability Act; U.S. legislation that provides data privacy and security provisions for safeguarding medical information.
DevOps

HTTP Requests

Messages sent by clients to initiate actions on servers, forming the foundation of data communication on the World Wide Web.
DevOps

Hadoop Architecture

Framework that allows for the distributed processing of large data sets across clusters of computers.
DevOps

HashiCorp Vault

Tool for securely accessing secrets like API keys, passwords, and certificates, central to modern secret management strategies.
DevOps

Heartbeat Monitoring

Continuous monitoring of a system or service to check if it's operational, often used in high-availability setups.
DevOps

Helm Chart

Package format for defining, installing, and upgrading complex Kubernetes applications, simplifying the deployment process.
DevOps

Heroku

Cloud platform as a service (PaaS) supporting several programming languages, used for deploying, managing, and scaling modern apps.
DevOps

High Availability

Characteristic of a system designed to avoid loss of service by reducing or managing failures.
DevOps

Hybrid Cloud

Computing environment that uses a mix of on-premises, private cloud and third-party, public cloud services.
DevOps

Hypothesis-Driven Development

Approach where features are treated as experiments to validate business outcomes.
DevOps
@mention

@mention

A feature in Git platforms that allows users to notify specific team members or reference issues by using the @ symbol followed by a username.
API preview

API preview

A feature allowing developers to test and provide feedback on new Git API functionality before it's officially released.
Bare Repository

Bare Repository

A Git repository containing version control information without a working directory, typically used as a central repository for collaboration.
Bisect

Bisect

A Git command used to perform a binary search through a repository's history to identify the commit that introduced a bug or issue.
Bitbucket Pipelines

Bitbucket Pipelines

An integrated CI/CD service in Bitbucket for automating builds, tests, and deployments.
Blame

Blame

A Git feature that shows which user last modified each line of a file, helping developers trace changes and understand code history.
Blamestorming

Blamestorming

A collaborative process of analyzing Git blame information to identify the source of bugs or issues in a codebase.
Branch

Branch

A parallel version of a repository, allowing developers to work on different features or experiments without affecting the main codebase.
Branch policies

Branch policies

Rules enforced on Git branches to ensure code quality, require reviews, or restrict certain actions before merging.
Business plan

Business plan

A premium subscription tier offered by Git hosting services, providing advanced features and support for enterprise users.
CA certificate

CA certificate

A digital certificate issued by a Certificate Authority, used in Git to establish secure HTTPS connections and verify server identities.
Cache

Cache

A temporary storage area that holds frequently accessed data for quick retrieval, improving system performance.
Checkout

Checkout

A Git command used to switch between different branches or restore files from a specific commit in a repository's history.
Cherry-Pick

Cherry-Pick

A Git operation that applies the changes from a specific commit to the current branch, useful for selective code integration.
Cherry-picking

Cherry-picking

The practice of selecting and applying specific commits from one branch to another in Git, often used for targeted bug fixes.
Clone

Clone

The process of creating a local copy of a remote Git repository, allowing developers to work on the codebase independently.
Code owners file

Code owners file

A file specifying individuals or teams responsible for code in different parts of a repository.
Commit

Commit

Operation in version control systems that saves changes to the local repository, creating a new revision with a unique identifier.
Conflict

Conflict

A situation in Git where incompatible changes have been made to the same part of a file, requiring manual resolution before merging.
Continuous Integration

Continuous Integration

Practice of merging all developer working copies to a shared mainline several times a day.
DAG (Directed Acyclic Graph)

DAG (Directed Acyclic Graph)

Directed Acyclic Graph, the underlying data structure used by Git to represent the commit history and relationships between commits.
Detach HEAD

Detach HEAD

A Git operation that moves the HEAD pointer to a specific commit, allowing for temporary exploration of historical states.
Diff

Diff

A Git command or operation that shows the differences between two commits, branches, files, or other Git objects.
Downstream

Downstream

Refers to the direction of change propagation in Git, typically from a parent branch to its child branches or forks.
Explorer

Explorer

A feature in Git platforms for browsing repository contents, viewing files, and navigating through different branches.
Feature branch workflow

Feature branch workflow

A Git pattern where each new feature is developed in a dedicated branch, then merged back to the main branch.
Fetch

Fetch

A Git command that retrieves changes from a remote repository without automatically merging them into the local branch.
Force Push

Force Push

A Git push operation that overwrites the remote branch's history with the local branch, potentially causing data loss if used carelessly.
Fork

Fork

A personal copy of another user's repository on a Git hosting platform, allowing independent development without affecting the original project.
Free plan

Free plan

A no-cost tier offered by Git hosting services, typically with limited features and storage for individual users or small projects.
GPG (GNU Privacy Guard)

GPG (GNU Privacy Guard)

An encryption software used with Git for signing commits and tags, enhancing security and verification.
Gist

Gist

A simple way to share code snippets, notes, or small files using Git, often integrated into Git platforms.
Git

Git

Distributed version control system for tracking changes in source code during software development.
Git Alias

Git Alias

A custom shortcut command defined by users to simplify complex or frequently used Git operations.
Git Alternates

Git Alternates

A mechanism in Git allowing a repository to borrow objects from another repository, useful for saving disk space in large projects.
Git Annotate

Git Annotate

A Git command that shows the author and commit information for each line in a file, similar to the "blame" feature.
Git Assume Unchanged

Git Assume Unchanged

A Git feature that tells the system to temporarily ignore changes to a tracked file, useful for local configuration files.
Git Attributes

Git Attributes

A mechanism in Git for defining attributes on a per-path basis, controlling how Git handles certain files or directories.
Git Bisect

Git Bisect

A Git command used to perform a binary search through the commit history to find the commit that introduced a bug.
Git Bisect Run

Git Bisect Run

An automated version of Git Bisect that uses a script to determine if each checked-out commit is "good" or "bad".
Git Blame -C (Copy Detection)

Git Blame -C (Copy Detection)

An enhanced version of Git Blame that detects lines moved or copied from other files, providing better change tracking.
Git Bundle

Git Bundle

A Git command that creates a single file containing all the data needed to recreate a repository's branch or history.
Git Bundle Create/Verify

Git Bundle Create/Verify

Commands to create and verify Git bundles, useful for transferring repository data without using a network.
Git Cheat Sheet

Git Cheat Sheet

A quick reference guide summarizing common Git commands and their usage, helpful for both beginners and experienced users.
Git Cherry

Git Cherry

A Git command used to find commits that haven't been merged upstream, useful for identifying changes to be applied to another branch.
Git Clean

Git Clean

A command to remove untracked files from the working directory, helping to maintain a clean repository state.
Git Commit --amend

Git Commit --amend

A command that allows you to modify the most recent commit, adding new changes or updating the commit message.
Git Commit Amend

Git Commit Amend

A command that allows you to modify the most recent commit, changing its message or contents, and update it without creating a new commit.
Git Commit Hooks

Git Commit Hooks

Scripts that run automatically before or after a commit, allowing you to enforce rules, format code, or perform checks on changes.
Git Commit Templates

Git Commit Templates

Predefined structures for commit messages, helping maintain consistency and include necessary information in commits.
Git Commit Trailers

Git Commit Trailers

Metadata added to the end of commit messages, often used for things like issue references or sign-offs.
Git Commit-graph

Git Commit-graph

A file format used to store commit graph structure, improving performance for operations that traverse commit history.
Git Commit-graph Verify

Git Commit-graph Verify

A command to check the integrity and validity of the commit-graph file in a Git repository.
Git Commit-tree

Git Commit-tree

A low-level Git command used to create a new commit object from an existing tree object.
Git Config

Git Config

A command and system for setting configuration options for Git on a global, local, or repository level.
Git Count-objects

Git Count-objects

A diagnostic command that provides statistics about the number and size of objects in a Git repository.
Git Credential Helper

Git Credential Helper

A system that securely stores and retrieves credentials for Git operations, reducing the need for manual authentication.
Git Daemon

Git Daemon

A lightweight server for the Git protocol, allowing anonymous read access to Git repositories.
Git Dangling Objects

Git Dangling Objects

Objects in Git that are not reachable from any reference, often created during rebasing or other history-altering operations.
Git Describe

Git Describe

A command that generates a human-readable name for a commit based on the most recent tag and additional commit information.
Git Diff

Git Diff

A command that shows changes between commits, branches, files, or the working directory and the index.
Git Diff Algorithms

Git Diff Algorithms

Various methods used by Git to compute differences between versions of files, optimizing for different scenarios.
Git Diff Tool

Git Diff Tool

An external program or interface used to visualize differences between files or commits in a more user-friendly manner.
Git Fetch --All

Git Fetch --All

A command that fetches updates from all remote repositories configured in a Git project.
Git Filter-branch

Git Filter-branch

A powerful tool for rewriting Git history, allowing for large-scale changes across many commits.
Git Flow

Git Flow

A branching model for Git that defines a strict branching structure designed to support multiple parallel developments.
Git Fork

Git Fork

The process of creating a personal copy of someone else's project, allowing for independent development without affecting the original.
Git Fsck

Git Fsck

A command that verifies the connectivity and validity of objects in the Git database.
Git Fsck (File System Check)

Git Fsck (File System Check)

Verifies the integrity of objects in the Git database, checking for corruption and inconsistencies.
Git GPG verification

Git GPG verification

A security feature in Git that uses GPG to sign and verify commits and tags, ensuring authenticity.
Git Garbage Collection (gc)

Git Garbage Collection (gc)

A process that optimizes the Git repository by removing unnecessary files and compressing objects.
Git Gc (Garbage Collection)

Git Gc (Garbage Collection)

Short for Git Garbage Collection, a command to clean up unnecessary files and optimize the repository.
Git Grep

Git Grep

A command for searching files in a Git repository using regular expressions or simple string matching.
Git Hook

Git Hook

A script that Git automatically runs before or after specific events, like commits or merges, to customize workflows and enforce rules.
Git Hooks

Git Hooks

Same as Git Hook, scripts triggered by various Git actions to automate tasks or enforce policies.
Git Ignore

Git Ignore

A mechanism to specify intentionally untracked files that Git should ignore, typically defined in a .gitignore file.
Git Index Format

Git Index Format

The internal format used by Git to store the staging area information, representing the next commit to be made.
Git Init

Git Init

A command used to initialize a new Git repository, creating the necessary directory structure for version control.
Git Interactive Rebase

Git Interactive Rebase

A feature allowing users to modify commits in their branch history, useful for cleaning up before merging.
Git Internals (objects, refs, etc.)

Git Internals (objects, refs, etc.)

The underlying data structures and mechanisms Git uses to store and manage version control information.
Git Interpret-trailers

Git Interpret-trailers

A command to parse and manipulate the trailer lines typically found at the end of commit messages.
Git LFS (Large File Storage)

Git LFS (Large File Storage)

A system that manages large files by storing them outside the main repository, replacing them with lightweight pointers to improve performance and efficiency.
Git Large File Storage (LFS)

Git Large File Storage (LFS)

An extension that replaces large files with text pointers in Git, while storing the file contents on a remote server.
Git Log

Git Log

A command to display the commit history of a repository, showing details like author, date, and commit message.
Git Maintenance

Git Maintenance

A set of tasks performed to keep a Git repository in good condition, including garbage collection and optimization.
Git Merge Strategies

Git Merge Strategies

Different algorithms used by Git to combine separate development histories when merging branches.
Git Merge Tools

Git Merge Tools

External programs or interfaces used to resolve merge conflicts in a more visual and user-friendly manner.
Git Merge-base

Git Merge-base

A command that finds the best common ancestor between two commits, useful for determining the point where branches diverged.
Git Multi-pack Index (MIDX)

Git Multi-pack Index (MIDX)

A feature that improves performance for repositories with many pack files by creating an index across multiple packs.
Git Namespaces

Git Namespaces

A feature allowing multiple references (like branches or tags) with the same name to coexist by separating them into different namespaces.
Git Notes

Git Notes

A way to add or inspect object notes, allowing additional information to be attached to Git objects without changing their SHA-1 hash.
Git Object Storage

Git Object Storage

The system Git uses to store all the versions of files, commits, and other objects in a content-addressable filesystem.
Git Pack Files

Git Pack Files

Compressed files containing Git objects, used to efficiently store and transfer repository data.
Git Packfile Format

Git Packfile Format

The internal format used by Git to store multiple objects efficiently in a single file, reducing disk usage and improving performance.
Git Partial Clone

Git Partial Clone

A feature allowing users to clone a repository without downloading all of its objects, saving bandwidth and storage.
Git Patch

Git Patch

A file format representing changes between versions, used for sharing and applying modifications across different repositories.
Git Plumbing Commands

Git Plumbing Commands

Low-level Git commands that expose the internal workings of Git, primarily used for scripting and advanced operations.
Git Porcelain Commands

Git Porcelain Commands

User-friendly commands for everyday tasks, like git status and git commit, designed for ease of use and clear output.
Git Protocol

Git Protocol

The native network protocol used by Git for efficient data transfer between repositories.
Git Prune

Git Prune

A command that removes objects that are no longer reachable from any references in the repository.

Workflows as Code

Defining and managing complex business processes using code in cloud environments.

Workload Placement Optimization

Techniques for efficiently distributing applications and data across cloud resources.

Workload Portability

Ability to move applications and data between different cloud environments with minimal modifications.

Workload-Aware Data Placement

Optimizing data storage location based on application requirements in cloud environments.

Zero Trust Network Access (ZTNA)

Security model that requires strict identity verification for every person and device accessing cloud resources.

Zero Trust Security Model

Approach assuming no automatic trust, requiring continuous verification in cloud environments.

Zero UI Cloud Interactions

Interfacing with cloud services through ambient intelligence, without traditional user interfaces.

Zero-Knowledge Proof Services

Cloud-based cryptographic methods allowing data verification without revealing the data itself.

Zero-Knowledge Proof Systems

Cryptographic protocols enabling data verification without disclosing the actual data in cloud environments.

Zero-Trust Microsegmentation

Fine-grained network segmentation approach in cloud environments, limiting lateral movement of threats.

Zero-Trust Network Access (ZTNA)

Security framework requiring strict authentication and authorization for all cloud network access.

Zoned Namespaces (ZNS) SSDs

Storage devices optimized for cloud workloads, improving performance and reducing write amplification.

eBPF (extended Berkeley Packet Filter)

Technology for running sandboxed programs in the Linux kernel, often used in cloud environments.

eBPF-based Networking

Using eBPF technology to enhance network performance and security in cloud environments.

Init Containers

Specialized containers that run to completion before other containers in a Kubernetes pod, used for initialization tasks.

Init Containers Resources

Specification of CPU and memory limits for initialization containers in Kubernetes pods, ensuring efficient resource utilization.

Initializers

Deprecated Kubernetes feature for dynamically modifying resource configurations before they become visible to the system.

Inter-Container Communication

Methods and patterns for containers within a pod to exchange data and signals, utilizing shared volumes or localhost networking.

IoT Edge Patterns

Architectural designs for deploying and managing containerized applications on edge devices in Internet of Things scenarios.

Istio

Open-source service mesh providing traffic management, security, and observability for cloud-native applications.

Istio Control Plane Components

Core services of the Istio service mesh responsible for configuring proxies and implementing policies.

Istio Destination Rules

Istio traffic management resource defining policies that apply to traffic intended for a service after routing has occurred.

Istio Gateways

Istio resources managing inbound and outbound traffic for the service mesh, providing fine-grained control over traffic flow.

Istio Mixerless Architecture

Istio design that removes the Mixer component, improving performance and scalability of the service mesh.

Istio Service Entries

Istio resources allowing the addition of entries to the service registry, enabling traffic to external dependencies.

Istio Virtual Services

Istio traffic management resources defining a set of traffic routing rules to apply when a host is addressed.

Istio's Ambient Mesh

Istio feature providing a sidecar-less service mesh implementation, reducing resource overhead and simplifying deployment.

Jaeger

Open-source, end-to-end distributed tracing system for monitoring and troubleshooting microservices-based distributed systems.

Jaeger Operator

Kubernetes operator for automated deployment and management of Jaeger tracing infrastructure in container environments.

Jaeger Tracing

Implementation of distributed tracing using Jaeger to monitor and optimize performance in microservices architectures.

Jenkins X

Cloud-native CI/CD solution for Kubernetes, automating the entire software development lifecycle for containerized applications.

Jib

Tool for building optimized Docker and OCI images for Java applications without the need for a Docker daemon.

Job

Kubernetes resource that creates one or more pods to perform a specific task and ensures they successfully complete, ideal for batch processes.

K3s

Lightweight Kubernetes distribution designed for edge, IoT, and resource-constrained environments, simplifying cluster deployment.

K9s CLI

Terminal-based UI for managing and monitoring Kubernetes clusters, providing an intuitive interface for cluster operations.

KEDA (Kubernetes Event-driven Autoscaling)

Kubernetes-based Event Driven Autoscaling, enabling fine-grained autoscaling for event-driven workloads based on event sources.

KUDO (Kubernetes Universal Declarative Operator)

Kubernetes Universal Declarative Operator, a toolkit for writing operators using a declarative spec, simplifying complex application management.

Kaniko

Tool for building container images from a Dockerfile inside a container or Kubernetes cluster, without requiring a Docker daemon.

Kanister for Application-Consistent Backups

Framework for application-level data management in Kubernetes, ensuring consistent backups of stateful apps.

Karmada

Open-source project for multi-cluster application management in Kubernetes, facilitating resource distribution across clusters.

Kata Containers

Lightweight virtual machines that feel and perform like containers, but provide the workload isolation and security of VMs.

Kata Containers 2.0

Major update to Kata Containers, introducing improved performance, reduced footprint, and enhanced security features.

Keptn

Cloud-native application lifecycle orchestration tool, automating deployment, testing, and remediation for containerized apps.

Kernel Bypass Networking

Technique allowing network packets to bypass the kernel, improving performance in container networking scenarios.

Kernel Namespaces

Linux feature providing isolation for system resources, fundamental to container implementation and resource separation.

Kilo for WireGuard-based Overlay Network

CNI plugin using WireGuard to create a mesh overlay network for Kubernetes, enhancing security and simplicity.

Knative

Kubernetes-based platform for building, deploying, and managing serverless workloads, simplifying serverless application development.

Knative Eventing

Knative component providing tools for routing events between publishers and subscribers in cloud-native applications.

Knative Serving

Knative component for deploying and managing serverless workloads, handling scaling and routing of containerized applications.

Krustlet for WebAssembly in Kubernetes

Tool allowing WebAssembly modules to run in Kubernetes clusters, enabling language-agnostic workloads.

Kube-OVN

Network virtualization solution for Kubernetes integrating the Open vSwitch software switch to provide advanced networking features.

Kube-OVN for Open vSwitch-based Networking

Implementation of Kube-OVN to leverage Open vSwitch for flexible, high-performance container networking.

Kube-bench for CIS Benchmarks

Tool for checking whether Kubernetes deployments adhere to Center for Internet Security (CIS) best practices.

Kube-bench for Security Auditing

Use of kube-bench to perform automated security audits of Kubernetes clusters against established benchmarks.

Kube-router for Direct Container Routing

Kubernetes networking solution providing direct container-to-container networking with BGP-based routing.

Kube-score for Kubernetes Object Analysis

Tool for static code analysis of Kubernetes object definitions, identifying misconfigurations and potential issues.

Kube-state-metrics

Service that listens to the Kubernetes API server and generates metrics about the state of Kubernetes objects.

KubeEdge

Open-source system extending native containerized application orchestration capabilities to hosts at Edge.

Kubeadm

Tool for bootstrapping a minimum viable Kubernetes cluster, simplifying the process of setting up a production-grade cluster.

Kubeaudit for Kubernetes Auditing

Open-source tool for auditing Kubernetes clusters and workloads for potential security issues and best practice violations.

Kubebuilder

Framework for building Kubernetes APIs using custom resource definitions (CRDs), simplifying the creation of operators and controllers.

Kubecost for Cost Monitoring

Tool providing real-time cost visibility and insights for running applications on Kubernetes, optimizing resource allocation.

Kubefed

Kubernetes Cluster Federation, enabling resource management across multiple Kubernetes clusters from a single control plane.

Kubeless

Kubernetes-native serverless framework, allowing deployment of small bits of code (functions) without managing underlying infrastructure.

Kubernetes API Versioning

System for evolving the Kubernetes API over time, allowing for backwards compatibility and gradual feature deprecation.

Kubernetes Admission Controllers

Plugins intercepting requests to the Kubernetes API server before object persistence, enforcing policies.

Kubernetes Aggregation Layer

Feature allowing the Kubernetes API to be extended with additional APIs, enabling custom resources and controllers.

Kubernetes Annotations

Key-value pairs for attaching non-identifying metadata to objects, used for tooling and client retrieval.

Kubernetes Autoscaling (HPA, VPA, Cluster Autoscaler)

Mechanisms (HPA, VPA, Cluster Autoscaler) for automatically adjusting resources based on demand and metrics.

Kubernetes Conformance Program

CNCF initiative ensuring consistency and portability across Kubernetes distributions and installations.

Kubernetes Events

API objects automatically created when other objects change state, providing a cluster activity audit trail.

Kubernetes Federation

Mechanism for coordinating multiple Kubernetes clusters, enabling multi-cluster application deployment and management.

Kubernetes Finalizers

Field on resources preventing accidental deletion, ensuring proper cleanup of related resources or external dependencies.

Kubernetes Garbage Collection

Process of automatically deleting objects that no longer have owners, preventing resource leaks.

Kubernetes Gateway API

Evolved ingress and service networking, providing a more expressive, extensible way to configure traffic routing.

Kubernetes Labels

Key-value pairs attached to objects for identification and selection, crucial for organizing and selecting object subsets.

Kubernetes Metrics Server

Cluster-wide aggregator of resource usage data, providing CPU and memory metrics for Horizontal Pod Autoscaler.

Kubernetes Operators

Software extensions to Kubernetes that use custom resources to manage applications and their components.

Kubernetes Owners and Dependents

Relationship between API objects where one object owns another, used for cascading deletion and orphan handling.

Kubernetes Selectors

Label query over a set of resources, used for identifying and grouping API objects based on their labels.

Kubernetes Version Lifecycle

Policies and timelines for Kubernetes version releases, support, and deprecation, guiding upgrade planning.

Kubernetes Virtual Clusters

Fully functional Kubernetes clusters running on top of other Kubernetes clusters, enabling multi-tenancy.

Kubesec.io for Kubernetes Manifests Scanning

Web-based tool for security risk analysis of Kubernetes resource manifests, identifying vulnerabilities.

Kustomize

Kubernetes native configuration management tool that allows customization of YAML manifests without templating.

Kustomize Overlays

Technique in Kustomize for creating variations of a common base of Kubernetes resources, enabling environment-specific configs.

Kustomize Patches

Method in Kustomize for modifying existing Kubernetes resources without directly editing the original YAML files.

Lacework for Container Compliance

Cloud security platform providing compliance monitoring and threat detection for containerized environments.

Layer

Unit of a container image representing a set of files or changes, crucial for image building and optimization.

Layered File System

Storage mechanism used by container runtimes, allowing efficient storage and quick updates of container images.

Leader Election Pattern

Design pattern ensuring only one instance of a distributed application component is active at a time.

Leader Election in Operators

Process where multiple instances of an operator elect a leader to prevent conflicts in resource management.

Least Privilege Principle

Security concept of giving a user or process only the minimum levels of access necessary to perform its function.

Lens IDE for Kubernetes

User-friendly, open-source IDE for managing Kubernetes clusters, providing a unified interface for multiple clusters.

Lightstep

Observability platform providing insights into the behavior of highly distributed software systems and microservices.

Limit Ranges

Kubernetes policy for constraining resource allocations (CPU and memory) for pods or containers in a namespace.

LimitRange

Kubernetes object defining the min, max, and default compute resources for pods and containers in a namespace.

Linkerd

Lightweight service mesh for Kubernetes, providing observability, reliability, and security for microservices.

Linkerd Data Plane

Component of Linkerd responsible for proxying traffic between services, implementing service mesh functionality.

Linkerd Service Profiles

Linkerd resource providing service-specific traffic metrics and control, enhancing observability and management.

Linkerd's Ultra-lightweight Proxy

High-performance, minimal-footprint proxy used in Linkerd's data plane for efficient service mesh operations.

Linux Security Modules (LSM)

Framework allowing various security models to be plugged into the Linux kernel, enhancing container isolation.

Load Balancer Integration

Process of connecting external load balancers with Kubernetes services for distributing incoming traffic.

Load Balancing Algorithms

Methods used by load balancers to distribute traffic across multiple container instances or pods.

LoadBalancer

Kubernetes service type that provisions an external load balancer in cloud environments for routing external traffic to services.

Local Persistent Volumes

Kubernetes volume type for locally attached storage, providing high-performance storage options for stateful workloads.

Locality Load Balancing

Technique for routing traffic to geographically or topologically closer endpoints in distributed container deployments.

Log Aggregation Patterns

Techniques for collecting, processing, and storing logs from distributed containerized applications for centralized analysis.

Logging Architecture

Design of systems for capturing, storing, and analyzing logs from containers and orchestration platforms.

Loki

Horizontally-scalable, multi-tenant log aggregation system designed for use with Prometheus and Kubernetes.

Longhorn

Cloud-native distributed block storage system for Kubernetes, providing persistent storage for stateful workloads.

Longhorn Distributed Block Storage

Implementation of Longhorn for providing resilient, replicated block storage in Kubernetes clusters.

Materialized View Pattern

Technique for precomputing and storing query results, improving performance in microservices architectures.

Memory Pressure

Condition where a node or container is running low on available memory, potentially triggering evictions or OOM kills.

Mesh Expansion

Process of extending service mesh capabilities to workloads running outside the primary container orchestration platform.