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

YAML (Yet Another Markup Language)

Human-readable data serialization standard that can be used in conjunction with all programming languages.
DevOps

YAML Sprawl

Proliferation of YAML configuration files, often leading to maintenance and consistency challenges.
DevOps

Yak Shaving

Seemingly useless activity which, by allowing you to overcome intermediate difficulties, allows you to solve a larger problem.
DevOps

Yarn

Fast, reliable, and secure dependency management tool for Node.js, offering improved performance and additional features over NPM.
DevOps

Yocto

Open-source collaboration project that helps developers create custom Linux-based systems.
DevOps

Yoda Conditions

Programming style where the constant goes before the variable in a conditional statement.
DevOps

You Build it You Run it

DevOps principle where development teams are also responsible for supporting the software in production.
DevOps

Zabbix

Open-source software tool to monitor various IT components, including networks, servers, virtual machines, and cloud services.
DevOps

Zero Downtime Deployment

Deployment method that ensures the application remains available to users during the entire update process.
DevOps

Zero Nines

A measure of system availability where no uptime guarantee is provided. It indicates a service with no specified reliability commitments or expectations.
DevOps

Zero Trust

Security concept centered on the belief that organizations should not automatically trust anything inside or outside its perimeters.
DevOps

Zero-day Attack

Cyber attack exploiting a vulnerability that is unknown to the software vendor or to antivirus vendors.
DevOps

Zipkin

Distributed tracing system that helps gather timing data needed to troubleshoot latency problems in service architectures.
DevOps

Zookeeper

Centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.
DevOps

Zsh (Z Shell)

Extended version of the Bourne Shell with many improvements, including some features of Bash, ksh, and tcsh.
DevOps

iOS Deployment

Process of distributing iOS applications to Apple devices, often through the App Store or enterprise distribution methods.
DevOps

macOS

Apple's Unix-based operating system for Macintosh computers, known for its user-friendly interface and tight integration with Apple hardware.
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.

Cloud-Based Robot Operating System (ROS)

Cloud-hosted version of ROS, providing robotics middleware and tools as a service.

Cloud-Based Robot Simulation

Platforms for simulating and testing robotic systems using cloud computing resources.

Cloud-Based Spatial Audio

Services for processing and rendering 3D audio experiences using cloud computing resources.

Cloud-Connected Industrial Robots

Factory automation systems leveraging cloud resources for data processing, analytics, and remote management.

Cloud-Enabled Autonomous Navigation

Systems using cloud computing to enhance navigation capabilities of autonomous vehicles or robots.

Cloud-Integrated Storage

Systems using cloud computing to enhance navigation capabilities of autonomous vehicles or robots.

Cloud-Native ACID Transactions

Implementations of ACID properties for database transactions in distributed cloud environments.

Cloud-Native Application Protection Platform (CNAPP)

Integrated security solutions designed to protect cloud-native applications throughout their lifecycle.

Cloud-Native Debugging Tools

Specialized software for identifying and resolving issues in cloud-native applications and microservices.

Cloud-Native Deep Learning

Frameworks and services optimized for training and deploying deep learning models in cloud environments.

Cloud-Native FPGAs and ASICs

Specialized hardware accelerators optimized for cloud-native workloads and accessible as cloud services.

Cloud-Native Firewalls

Network security tools designed specifically for protecting cloud-native applications and infrastructure.

Cloud-Native Hardware Security Module (HSM)

Cloud-based services providing hardware-level encryption key management and cryptographic operations.

Cloud-Native IDEs

Integrated development environments optimized for building and deploying cloud-native applications.

Cloud-Native Jupyter Notebooks

Interactive computing environments for data analysis and machine learning, designed for cloud deployment.

Cloud-Native Load Balancing

Traffic distribution services designed specifically for cloud-native applications and microservices architectures.

Cloud-Native Network Functions (CNF)

Virtualized network services designed to run in containerized environments, optimized for cloud infrastructure.

Cloud-Native Network Functions (CNFs)

Network services built as microservices, optimized for deployment in cloud-native environments.

Cloud-Native Reinforcement Learning Environments

Scalable platforms for training AI agents using reinforcement learning algorithms in cloud environments.

Cloud-Native Security Information and Event Management (SIEM)

SIEM solutions designed for collecting and analyzing security data from cloud-native applications.

Cloud-Native Security Orchestration

Automated coordination of security tools and processes in cloud-native environments.

Cloud-Native Transformation

Process of redesigning applications and infrastructure to fully leverage cloud-native technologies and practices.

Cloud-Powered Brain-Computer Interfaces

BCI systems that use cloud computing for data processing and AI-driven interpretation of brain signals.

Cloud-agnostic Architecture

Design approach for building applications that can run on multiple cloud platforms without significant modifications.

Cloud-based AI Chipset Virtualization

Technology enabling virtual access to specialized AI hardware accelerators in the cloud.

Cloud-based Augmented Reality (AR)

Services for processing and delivering AR experiences using cloud computing resources.

Cloud-based Cognitive Architectures

Frameworks for building AI systems that mimic human cognitive processes using cloud resources.

Cloud-based Cryptocurrency Mining

Using cloud computing resources to perform complex calculations required for mining digital currencies.

Cloud-based IoT Platforms

Managed services for connecting, monitoring, and controlling Internet of Things devices using cloud infrastructure.

Cloud-based Robotic Process Automation (RPA)

Services for automating repetitive tasks and workflows using software robots hosted in the cloud.

Cloud-based Visual Programming Environments

Platforms offering drag-and-drop interfaces for creating applications without traditional coding, hosted in the cloud.

Cloud-native AI Development

Practices and tools for building, training, and deploying AI models optimized for cloud environments.

Cloud-native GPU Programming

Techniques and tools for leveraging cloud-based GPUs to accelerate computational tasks in cloud-native applications.

Cloud-to-Cloud Migration

Process of moving applications and data from one cloud provider to another, optimizing for cost, performance, or features.

Cloud-to-Edge-to-Fog Seamless Integration

Unified computing paradigm combining cloud, edge, and fog computing for optimal data processing and latency.

CloudFormation (AWS)

Infrastructure-as-Code service for defining and provisioning AWS infrastructure using declarative templates.

CloudFormation Designer

Visual tool for creating, viewing, and modifying AWS CloudFormation templates, simplifying infrastructure-as-code development.

Cloudlets

Small-scale cloud data centers located at the edge of the network to support low-latency applications.

CoAP Protocol

Lightweight application layer protocol designed for constrained devices in Internet of Things (IoT) environments.

Cold Start

Delay in executing serverless functions when they haven't been used recently and need to be initialized.

Collaborative Cloud Robotics

Multiple robots working together, leveraging cloud resources for coordination and shared learning.

Collaborative Data Modeling

Cloud-based tools enabling teams to jointly design and refine data models for applications.

Collaborative Data Science Environments

Cloud platforms supporting team-based data analysis, model development, and knowledge sharing.

Collaborative Filtering at Scale

Cloud-based recommendation systems processing large datasets to suggest items based on user preferences.

Columnar Storage

Database storage format optimized for analytical queries in cloud data warehouses.

Command Query Responsibility Segregation (CQRS)

Architectural pattern separating read and write operations in cloud-based applications.

Complex Event Processing (CEP)

Real-time analysis of data streams to identify and respond to specific patterns or events in cloud environments.

Compliance Frameworks

Standardized guidelines for ensuring cloud systems meet regulatory requirements (e.g., GDPR, HIPAA, PCI DSS).

Compliance Frameworks (GDPR, HIPAA, PCI DSS, etc.)

Regulatory standards guiding data protection and security practices in cloud computing.

Compliance Monitoring

Continuous assessment of cloud systems and practices to ensure adherence to regulatory standards.

Composable Infrastructure as a Service

Cloud service allowing dynamic assembly of virtualized compute, storage, and networking resources.

Computational Storage

Storage devices with built-in processing capabilities, enabling data processing within the storage subsystem.

Computational Storage Devices

Storage hardware with integrated computing resources for in-situ data processing in cloud environments.

Computer Vision

AI technology that enables machines to interpret and understand visual information from images or videos.

Computer Vision APIs

Cloud services offering pre-built models and tools for image and video analysis tasks.

Concurrency

Simultaneous execution of multiple computations or processes in cloud environments.

Confidential Computing

Technology protecting data in use by performing computation in a hardware-based trusted execution environment.

Confidential Computing Enclaves

Isolated environments in cloud infrastructure for secure processing of sensitive data.

Configuration Drift Detection

Monitoring and identifying unintended changes in cloud resource configurations over time.

Consortium Blockchain

Permissioned blockchain network operated by a group of organizations in a cloud environment.

Container Instances (e.g., Amazon ECS, Azure Container Instances)

Serverless compute platforms for running containers without managing the underlying infrastructure.

Container Networking

Optimizing container resource allocations to improve efficiency and reduce costs in cloud environments.

Container Rightsizing

Technologies and practices for managing network connectivity between containerized applications in the cloud.

Container Runtime Security

Tools and practices for protecting containerized applications during execution in cloud environments.

Container Security

Measures and tools for protecting containerized applications and their data in cloud environments.

Context-Aware Cloud Interfaces

User interfaces that adapt based on user context, device capabilities, and environmental factors.

Continuous Adaptive Risk and Trust Assessment (CARTA)

Dynamic approach to security that continuously analyzes and adapts to changing risks in cloud environments.

Continuous Cloud Security Posture Management

Ongoing process of assessing and improving security risks in cloud infrastructure configurations.

Continuous Compliance Monitoring and Reporting

Automated, real-time tracking and reporting of compliance status for cloud resources and applications.

Continuous Data Testing

Ongoing validation of data quality, integrity, and consistency in cloud-based data pipelines and storage systems.

Continuous Deployment

Automated process of releasing code changes to production environments in cloud infrastructure.

Continuous Integration/Continuous Deployment (CI/CD) in the Cloud

Automated pipeline for building, testing, and deploying applications in cloud environments.

Continuous Optimization

Ongoing process of improving cloud resource utilization, performance, and cost-efficiency.

Continuous Profiling

Constant monitoring and analysis of application performance in cloud environments to identify bottlenecks.

Continuous Rightsizing

Ongoing process of adjusting cloud resource allocations to match actual usage and demand.

Continuous Training

Automated process of regularly updating machine learning models with new data in cloud environments.

Continuous Verification

Ongoing process of validating cloud infrastructure and applications against defined policies and configurations.

Cost Allocation

Process of distributing cloud expenses across different departments, projects, or cost centers within an organization.

Cost Anomaly Detection

Automated identification of unusual or unexpected patterns in cloud spending, helping optimize resource allocation and budgeting.

Cost Attribution

Associating cloud expenses with specific resources, services, or business units for accurate accounting.

Cost Explorer

Tool for visualizing and analyzing cloud spending patterns and trends, helping optimize resource allocation and budgeting.

Cost Optimization Recommendations

Automated suggestions for reducing cloud expenses while maintaining performance and reliability.

Cost-aware Autoscaling

Intelligent scaling of cloud resources considering both performance requirements and cost implications.

Cross-Border Data Transfer Compliance

Ensuring cloud data transfers comply with international data protection regulations.

Cross-Cloud Data Replication

Synchronizing data across multiple cloud providers for redundancy and disaster recovery.

Cross-Cloud Smart Contracts

Blockchain-based agreements executable across different cloud platforms, enabling multi-cloud decentralized applications.

Cross-Platform Cloud Native Runtimes

Execution environments for cloud-native applications that work across multiple cloud providers.

Cryptographic Key Management

Services for securely generating, storing, and rotating encryption keys in cloud environments.

DDoS Protection

Services defending against Distributed Denial of Service attacks on cloud-based applications and infrastructure.

DNA Data Storage

Experimental technology using DNA molecules to store digital data, potentially leveraging cloud for processing.

DNA-Based Data Storage

Experimental technique using DNA molecules to store digital data, potentially integrated with cloud for processing and retrieval.

DNS in the Cloud

Managed Domain Name System services provided by cloud platforms for translating domain names to IP addresses.

Dapr (Distributed Application Runtime)

Portable runtime for building microservices-based applications across cloud and edge environments.

Dashboards and Visualization

Tools for creating interactive, visual representations of cloud data and metrics.

Data Catalog

Centralized repository for metadata about an organization's data assets in the cloud.

Data Catalogs and Data Discovery

Tools for organizing, indexing, and searching data assets across cloud environments.

Data Classification

Categorizing data based on sensitivity and importance for appropriate handling in cloud storage.

Data Drift Detection

Monitoring changes in data distributions that may affect machine learning model performance in cloud environments.

Data Fabric

Integrated architecture for managing and accessing data across diverse cloud and on-premises environments.

Data Fabric Architecture

Unified data management framework spanning multiple cloud and on-premises environments.

Vertical Pod Autoscaler with Custom Metrics

Extended VPA functionality allowing scaling decisions based on application-specific metrics.

VerticalPodAutoscaler

Kubernetes resource defining the behavior for automatically adjusting pod resource requests and limits.

Virtual Clusters

Isolated environments within a physical Kubernetes cluster, providing multi-tenancy and resource isolation.

Virtual IP (VIP)

Single IP address representing a service, used for load balancing in container networking.

Virtual Kubelet

Kubernetes kubelet implementation that masquerades as a node and schedules pods on non-Kubernetes platforms.

Volume Access Modes (ReadWriteOnce, ReadOnlyMany, ReadWriteMany)

Kubernetes volume properties (ReadWriteOnce, ReadOnlyMany, ReadWriteMany) defining how a volume can be mounted.

Volume Cloning

Process of creating a new volume populated with the contents of an existing volume in Kubernetes.

Volume Expansion

Feature allowing the size of a persistent volume to be increased without recreating the volume.

Volume Health Monitoring

Kubernetes feature for detecting and reporting issues with persistent volumes to ensure data integrity.

Volume Modes (Block, Filesystem)

Kubernetes volume properties (Block, Filesystem) defining how the storage is presented to the container.

Volume Mounting

Process of making a storage volume accessible within a container's filesystem, enabling data persistence.

Volume Mounts

Specifications in Kubernetes pod definitions declaring how volumes should be mounted into containers.

Volume Plugins

Kubernetes components enabling integration with various storage systems for persistent storage.

Volume Snapshots

Point-in-time copies of volumes in Kubernetes, used for backup, restoration, or cloning of persistent data.

Vulnerability Scanning Integration

Incorporation of security scanning tools into the container build and deployment pipeline.

Weave GitOps

Set of tools for implementing GitOps workflows in Kubernetes environments, automating deployment and management.

Weave Net

Software-defined networking solution for containerized applications, providing a virtual network across hosts.

Weave Net for Multi-host Docker Networking

Use of Weave Net to create a virtual network connecting Docker containers across multiple hosts.

WebAssembly (Wasm) in Containers

Use of WebAssembly runtimes in containers for portable, secure, and high-performance applications.

WebAssembly in Service Mesh

Integration of WebAssembly modules in service mesh proxies for customizable traffic management.

Webhook Admission Controllers

External services invoked during the Kubernetes admission process to validate or mutate API requests.

Webhook Authorization

Kubernetes authorization mode delegating access decisions to an external REST service, enabling custom auth logic.

Webhook Token Authentication

Kubernetes authentication method verifying bearer tokens against an external webhook service.

Whereabouts for IP Address Management

CNI IPAM plugin for dynamically allocating IP addresses across multiple nodes in Kubernetes.

Wireguard for Container Networks

Use of the Wireguard VPN protocol to secure container-to-container communication across hosts.

X.509 Client Certs

Digital certificates used for authenticating clients in Kubernetes API server communications.

XDP (eXpress Data Path)

Linux kernel technology for high-performance packet processing, useful in container networking scenarios.

cAdvisor

Container advisor that collects, aggregates, and exports resource usage and performance data from running containers.

cgroups v2

Second version of control groups, offering a unified hierarchy and improved resource management for containers.

containerd

Industry-standard container runtime used by many container and orchestration platforms, providing core container operations.

containerd Internals

Core components and architecture of the containerd container runtime, including its image management and execution features.

containerd Shim

Intermediary process between containerd and runc, managing container lifecycle and I/O, enhancing isolation.

eBPF for Container Networking

Use of extended Berkeley Packet Filter for advanced container networking capabilities, enhancing performance and security.

eBPF for Container Observability

Use of extended Berkeley Packet Filter for deep insights into container behavior and performance.

eBPF in Service Mesh

Integration of eBPF technology in service mesh implementations for improved performance and observability.

eBPF-based Monitoring

Use of eBPF for efficient and detailed monitoring of containerized applications and infrastructure.

etcd Encryption

Feature ensuring at-rest encryption of data stored in etcd, Kubernetes' distributed key-value store.

etcd Performance Tuning

Optimization techniques for improving etcd performance in large-scale container orchestration.

etcd Snapshots

Point-in-time copies of etcd's state, used for backup and recovery in Kubernetes clusters.

etcd Upgrade

Process of updating the etcd cluster to a newer version in a Kubernetes environment, ensuring cluster data store reliability.

gRPC Protocol

High-performance, open-source RPC framework used for efficient communication between containerized microservices.

gRPC in Microservices

Use of gRPC, a high-performance RPC framework, for communication between containerized microservices.

gVisor

Container runtime sandbox that provides an additional layer of isolation between containerized applications and the host kernel.

gVisor for Container Isolation

Use of gVisor to enhance security in multi-tenant container environments by isolating containers from the host kernel.

in-toto for Supply Chain Integrity

Framework for securing software supply chains, applicable to container image build and distribution processes.

kube-hunter for Penetration Testing

Open-source tool for discovering security weaknesses in Kubernetes clusters through simulated attacks.

kube-proxy

Kubernetes network proxy maintaining network rules on nodes, implementing part of the Kubernetes Service concept.

kube-proxy Modes (iptables, IPVS)

Different implementations of kube-proxy for managing service networking, each with unique performance characteristics.

kube-scheduler

Kubernetes component responsible for assigning newly created pods to nodes based on resource requirements and constraints.

kubelet

Primary node agent running on each node in a Kubernetes cluster, ensuring containers are running in a pod as expected.

lxc

Linux Containers, a userspace interface for the Linux kernel containment features, providing operating system-level virtualization.

rkt

Container runtime focusing on security and composability, offering an alternative to Docker (now deprecated).