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.

Serverless Containers

Container-based applications run on serverless platforms, combining containerization with auto-scaling.

Serverless Cost Optimization

Strategies to minimize expenses in serverless architectures while maintaining performance.

Serverless Data Analytics

Processing and analyzing data using serverless compute resources in the cloud, providing scalable and cost-effective insights.

Serverless Data Processing

Handling and transforming data using auto-scaling, event-driven cloud services, eliminating infrastructure management overhead.

Serverless Databases

Fully managed database services that scale automatically based on demand, eliminating the need for manual provisioning and management.

Serverless DevOps

Practices combining serverless architectures with DevOps principles for efficient cloud development.

Serverless ETL

Extract, Transform, Load processes using serverless compute for data integration in the cloud.

Serverless Integration

Connecting applications and data sources using serverless compute in cloud environments.

Serverless Microservices

Building application components as independent, auto-scaling functions in the cloud.

Serverless Networking

Network management and routing tailored for serverless architectures in cloud environments.

Serverless Resource Optimization

Techniques for efficient use of compute, storage, and network resources in serverless systems.

Serverless Security

Protecting serverless applications from vulnerabilities and attacks in cloud environments.

Serverless Security Frameworks

Tools and practices for implementing security in serverless cloud architectures.

Serverless Security Platforms

Comprehensive solutions for protecting serverless applications and data in the cloud.

Serverless Web Applications

Websites built and hosted using serverless cloud services for automatic scaling.

Serverless Workflows

Orchestrating sequences of serverless functions to create complex, scalable processes.

Service Control Policies (AWS)

Rules for managing permissions in AWS Organizations across multiple accounts, enforcing security and compliance standards.

Service Discovery

Automated detection of services and their network locations in cloud environments.

Service Level Objectives (SLOs)

Targets for service performance and availability in cloud environments, defining quality standards for cloud services.

Service Mesh Control Plane

Central component managing configuration and policies in a service mesh architecture.

Service Mesh Data Plane

Component handling inter-service communication in a service mesh architecture, managing traffic flow and security.

Service Mesh Interface

Standardized APIs for interacting with service mesh technologies in cloud environments.

Service Mesh Observability

Monitoring and analyzing traffic and behavior within a service mesh architecture.

Service Mesh Security

Protecting inter-service communication within a service mesh in cloud environments.

Sharding

Distributing data across multiple database instances to improve performance and scalability in cloud environments.

Showback and Chargeback

Systems for tracking and allocating cloud resource costs within an organization.

Sidecar Pattern

Deploying components of an application as separate containers alongside the main container in cloud environments.

Sidecars

Helper containers deployed alongside main application containers to provide additional functionality in cloud environments.

Silicon Photonics in Cloud Networking

Using light-based chips for high-speed data transmission in cloud data centers, improving network performance and efficiency.

Site Reliability Engineering (SRE) Platforms

Tools for implementing SRE practices in cloud environments, focusing on automation and reliability.

Smart Contract Platforms

Cloud-based systems for creating, deploying, and managing self-executing digital contracts.

Software-Defined Networking (SDN)

Approach to cloud network management using software-based controllers instead of hardware.

Software-Defined Power Distribution

Managing and optimizing power allocation in cloud data centers through software control.

Software-Defined Storage (SDS)

Abstracting storage services from underlying hardware in cloud environments for flexible management.

Software-Defined Wide Area Network (SD-WAN)

Technology for efficiently routing traffic between cloud and on-premises resources.

Spatial Computing

Integrating digital information with the physical world in cloud-based augmented and virtual reality systems.

Spatial Databases

Cloud databases optimized for storing and querying location-based data, essential for geospatial applications and analytics.

Speech Recognition

Cloud-based service for converting spoken language into text, enabling voice-controlled interfaces and transcription.

Spot Instance Management

Strategies for efficiently using and monitoring discounted, interruptible cloud compute resources.

Spot Instance Management Platforms

Tools for optimizing the use of discounted, interruptible cloud compute resources.

Spot Instance Optimization

Techniques for maximizing cost savings and availability when using discounted, interruptible cloud resources.

Spot Instances

Discounted, interruptible cloud compute resources available for bidding, offering cost savings for flexible workloads.

State Management

Techniques for maintaining application data consistency in distributed cloud environments.

Stateful Serverless Computing

Serverless architectures that maintain state between function invocations in the cloud.

Stateless Functions

Cloud-based functions that don't retain state between invocations, enhancing scalability.

Step Functions (AWS)

AWS service for coordinating multiple Lambda functions into serverless workflows.

Storage Class Memory (SCM)

High-performance, low-latency memory technology bridging DRAM and SSDs in cloud infrastructure.

Storage QoS (Quality of Service)

Mechanisms to ensure consistent performance levels for storage resources in cloud environments.

Storage Tiering Optimization

Automatically moving data between storage tiers based on access patterns to balance cost and performance.

Stream Processing (e.g., Amazon Kinesis, Azure Stream Analytics)

Real-time analysis of continuously flowing data in cloud environments, enabling instant insights and rapid decision-making.

Stream Processing at Scale

Handling and analyzing large volumes of real-time data streams in cloud environments.

Streaming SQL Engines

Cloud-based systems for querying continuous data streams using SQL-like syntax, enabling real-time data analysis.

Subnet

Segmented portion of a cloud network with its own IP address range, allowing for improved security and traffic management.

Sustainability Reporting Platforms

Tools for tracking and reporting environmental metrics of cloud resource usage, promoting eco-friendly cloud computing.

Sustainability Reporting for Cloud Services

Documenting environmental impact and energy efficiency of cloud operations, promoting transparency and accountability.

Sustainability-Aware Resource Scheduling

Allocating cloud resources with consideration for environmental impact, optimizing for energy efficiency.

Sustainability-Driven Optimization

Improving cloud resource efficiency to minimize environmental impact while maintaining performance and reliability.

Sustainable Cloud Computing

Practices and technologies minimizing the environmental impact of cloud operations.

Sustainable Cloud Migration

Moving to the cloud with strategies to minimize environmental impact, optimizing resource usage and energy efficiency.

Sustainable Data Center Design

Creating cloud facilities with minimal environmental impact and maximum energy efficiency.

Swarm Intelligence for Cloud Optimization

Using collective behavior algorithms to optimize cloud resource allocation, improving efficiency and performance.

Swarm Robotics in the Cloud

Coordinating multiple robots using cloud-based swarm intelligence algorithms, enabling scalable and adaptive robotic systems.

Synthetic Data Generation

Creating artificial datasets for testing and development in cloud environments, preserving privacy and expanding data availability.

Synthetic Media Generation Platforms

Cloud services for creating AI-generated images, videos, and audio, enabling content creation at scale.

Tactile Internet Interfaces

Ultra-low latency network interfaces for real-time tactile feedback in cloud applications.

Tagging Strategies

Methods for labeling cloud resources to improve organization, management, and cost allocation.

Telco Cloud

Cloud infrastructure specifically designed for telecommunications service providers.

Telepresence Robotics Control Systems

Cloud-based platforms for remotely operating robots with real-time feedback, enabling distant manipulation and interaction.

Text-to-Speech

Cloud service converting written text into spoken words, often used in accessibility and voice interface applications.

Time Series Forecasting as a Service

Cloud-based predictive analytics for time-dependent data, used for trend analysis and future projections.

Time-Series Databases

Cloud databases optimized for storing and querying time-stamped data, essential for IoT and monitoring applications.

TinyML

Deploying machine learning models on resource-constrained IoT devices connected to the cloud.

Tokenization Services

Cloud-based tools for replacing sensitive data with non-sensitive tokens to enhance security.

Total Cost of Ownership (TCO)

Comprehensive assessment of direct and indirect costs associated with cloud adoption and usage.

Transfer Learning

Technique of using pre-trained AI models for new tasks, reducing training time and data requirements in the cloud.

Transit Gateway

Cloud networking service that connects VPCs, on-premises networks, and other cloud services.

Twelve-Factor App Methodology

Set of best practices for building scalable, maintainable cloud-native applications.

Unikernels

Lightweight, single-purpose machine images for running cloud applications with minimal overhead.

Unit Economics in the Cloud

Analysis of costs and revenues associated with individual cloud service units or transactions.

Universal Cloud API Standards

Efforts to create standardized interfaces for interacting with various cloud services.

VPN Connection

Secure, encrypted link between a local network and cloud resources, enabling private access to cloud services over public networks.

VR Streaming

Cloud-based delivery of virtual reality content to end-user devices, enabling immersive experiences without local processing.

Vector Databases

Cloud databases optimized for storing and querying high-dimensional vector data, often used in AI applications.

Version Control in the Cloud

Managing and tracking changes to code and configurations in cloud-based repositories.

Vertical Scaling (Scale Up)

Increasing the capacity of a single cloud resource by adding more power (CPU, RAM, etc.).

Virtual Cloud Network (VCN)

Software-defined network providing connectivity for cloud resources, enabling secure and flexible communication.

Virtual Environments as a Service

Cloud-based platforms offering customizable, isolated development and testing environments.

Virtual Machines (e.g., Amazon EC2, Azure Virtual Machines)

Emulations of computer systems providing scalable, isolated environments in the cloud.

Virtual Network Appliances

Software-based network devices deployed in cloud environments for various networking functions.

Virtual Network Functions (VNF)

Software implementations of network functions running on cloud infrastructure, replacing traditional hardware appliances.

Virtual Reality (VR) Cloud

Cloud-based services for creating, rendering, and delivering virtual reality experiences.

Virtual Reality Cloud Workspaces

Cloud-hosted VR environments for collaborative work and data visualization, enabling immersive remote collaboration.

Voice User Interfaces (VUI) for Cloud Services

Speech-based interfaces for interacting with cloud applications and services, enhancing accessibility and user experience.

Volumetric Display Computation Services

Cloud-based processing for generating 3D holographic or volumetric images, enabling immersive visualization applications.

Volumetric Video Streaming

Cloud services for delivering 3D video content for immersive viewing experiences.

Water Usage Effectiveness (WUE)

Metric measuring water consumption efficiency in cloud data centers, promoting sustainable resource management.

Water Usage Effectiveness (WUE) Monitoring

Tracking water consumption and efficiency in cloud data center operations, promoting sustainable resource management.

Web Application Firewall (WAF)

Cloud-based security service that filters and monitors HTTP traffic between web applications and the Internet.

WebAssembly (Wasm) in the Cloud

Low-level language for running high-performance applications in cloud-based web browsers.

WebAssembly in the Cloud

Binary instruction format enabling high-performance execution of code in cloud-based web environments.

DaemonSet Pattern

Design pattern using DaemonSets to run system daemons or agents on every node in a cluster.

Data Backup and Recovery

Processes and tools for preserving and restoring data in containerized environments, ensuring data durability.

Data Consistency in Distributed Systems

Techniques ensuring data integrity across distributed container-based applications, maintaining reliability.

Data Fabric in Containerized Environments

Distributed data management architecture providing consistent data access across containerized applications.

Data Lakehouse Architecture

Unified data architecture combining data lake and data warehouse features in containerized environments.

Data Migration Between Containers

Process of moving data between containers or from traditional systems to containerized applications.

Data Persistence Strategies

Techniques for maintaining data across container lifecycles, including volume mounts and persistent volumes.

Data Plane

Network layer responsible for forwarding container traffic based on control plane decisions.

Data Replication in Containers

Techniques for creating and maintaining copies of data across multiple containerized instances.

Data Sharding in Containerized Databases

Partitioning data across multiple database containers for improved scalability and performance.

Database Containerization

Process of running database systems within containers for improved portability and resource utilization.

Database-per-Service Pattern

Microservices design pattern where each service has its own dedicated database, ensuring data isolation.

Datadog Container Monitoring

Platform for observability and monitoring of containerized environments and microservices.

Dead Letter Queue Pattern

Design pattern for handling failed message processing in containerized message-driven systems.

Declarative Deployments

Approach to deploying containers by specifying desired state rather than imperative commands.

Deployment Strategies

Techniques for rolling out container updates, including rolling updates, blue-green, and canary deployments.

Descheduler

Kubernetes component that evicts pods from nodes based on specific policies to optimize cluster resource usage.

DevSpace for Cloud-native Development

Standardized format defining the structure and metadata of Docker container images, ensuring portability.

Device Plugins

Kubernetes feature allowing nodes to advertise system hardware resources to the cluster, enabling specialized hardware use.

Direct Server Return (DSR)

Network optimization technique in container load balancing for improved performance by bypassing the load balancer for responses.

Distributed Tracing Integration

Implementation of tracing in containerized microservices for end-to-end request visibility.

Distributed Tracing with Jaeger

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

Distributed Tracing with OpenTelemetry

Implementation of OpenTelemetry for standardized observability in containerized environments.

Distroless Images

Minimal container images containing only the application and its runtime dependencies, reducing attack surface.

Docker Attach

Command to attach local standard input, output, and error streams to a running container for interaction and debugging.

Docker Build Context

Set of files located in the specified PATH or URL, used during the docker build process to create images.

Docker Buildx

Docker CLI plugin for extended build capabilities, including multi-platform builds and enhanced build options.

Docker CRI Shim

Component enabling Docker to be used as a container runtime in Kubernetes via the Container Runtime Interface.

Docker Client

Command-line tool for interacting with Docker daemon and managing containers, images, and other Docker objects.

Docker Commit

Command creating a new image from a container's changes, useful for saving modifications made to a running container.

Docker Compose

Tool for defining and running multi-container Docker applications, simplifying the process of managing complex application stacks.

Docker Container Inspection

Process of viewing detailed information about a container's configuration and state, aiding in troubleshooting.

Docker Content Trust

Feature providing digital signing and verification of Docker images, ensuring image authenticity and integrity.

Docker Content Trust Signature Verification

Process of validating the authenticity and integrity of signed Docker images before use.

Docker Contexts

Feature allowing management of multiple Docker endpoints from a single Docker client, simplifying multi-environment management.

Docker Daemon

Background service managing Docker objects like images, containers, networks, and volumes.

Docker Exec

Command allowing users to run a new process inside a running container, useful for debugging and maintenance tasks.

Docker Export/Import

Commands for exporting a container's filesystem as a tarball and importing it as an image.

Docker Hub

Cloud-based repository service for finding and sharing container images, central to the Docker ecosystem.

Docker Image History

Command showing the history of an image's layers, providing insight into how the image was built and modified.

Docker Image Inspection

Process of examining Docker image metadata, including layers, environment variables, and exposed ports.

Docker Image Specification

Standardized format defining the structure and metadata of Docker container images, ensuring portability.

Docker Network

Virtualized network providing connectivity between Docker containers, isolating container traffic from the host network.

Docker Network Driver Types (bridge, host, overlay, macvlan)

Different networking modes in Docker, including bridge, host, overlay, and macvlan, offering varied connectivity options.

Docker Prune

Command for removing unused Docker objects like containers, networks, images, and volumes.

Docker Save/Load

Commands for exporting Docker images to tar archives and importing them back, useful for image transfer and backup.

Docker Scan

Command-line tool for scanning Docker images for vulnerabilities, providing detailed reports on potential security issues.

Docker Shim

Deprecated component that provided CRI compatibility for Docker in Kubernetes, bridging Docker and CRI.

Docker Socket

Unix socket or named pipe used for communication between Docker client and daemon, enabling Docker API access.

Docker Stats

Command displaying a live stream of container resource usage statistics, including CPU, memory, and network I/O.

Docker Swarm

Native clustering and orchestration solution for Docker, allowing you to create and manage a swarm of Docker nodes as a single virtual system.

Docker System Events

Real-time stream of Docker daemon events, providing insights into container, image, volume, and network activities.

Docker Top

Command displaying the running processes of a container, similar to the Unix top command but container-specific.

Docker Volume

Persistent data storage mechanism for containers, independent of container lifecycle, enabling data persistence.

Docker Volume Driver Types

Different storage backends for Docker volumes, including local, NFS, and cloud-specific drivers.

Dockerfile

Text document containing all the commands a user could call on the command line to assemble a Docker image.

Dockerfile ARG

Instruction defining build-time variables that users can pass at build-time to the builder.

Dockerfile Best Practices

Guidelines for creating efficient, secure, and maintainable Dockerfiles, optimizing image builds and runtime performance.

Dockerfile HEALTHCHECK

Instruction telling Docker how to test a container to check its health status, improving reliability.

Dockerfile Instructions (ADD, COPY, RUN, CMD, ENTRYPOINT, etc.)

Set of commands used in Dockerfiles to build images, including ADD, COPY, RUN, CMD, and ENTRYPOINT.

Dockerfile ONBUILD

Set of commands used in Dockerfiles to build images, including ADD, COPY, RUN, CMD, and ENTRYPOINT.

Dockerfile STOPSIGNAL

Instruction setting the system call signal that will be sent to the container to exit, customizing shutdown behavior.

Dockerignore

File specifying which files and directories should be excluded when building a Docker image.

Domain-Driven Design (DDD) in Microservices

Approach to software design focusing on the core domain in containerized microservices architectures.

Dragonfly for P2P Image Distribution

P2P-based image and file distribution system to improve efficiency of image downloads in container environments.

Drain

Process of cordoning a node and evicting its pods in preparation for maintenance or decommissioning.

Dual-stack Networking

Networking configuration supporting both IPv4 and IPv6 in container environments, enabling broader connectivity options.

Dynamic Admission Control

Kubernetes feature allowing custom logic to be applied to object creation or modification requests.

Dynamic Auditing

Kubernetes feature enabling runtime configuration of audit policies without API server restart.

Dynamic Provisioning

Automatic creation of storage when persistent volume claims are made in Kubernetes, simplifying storage management.

Dynatrace OneAgent

Monitoring solution for containerized environments, providing deep visibility into application performance.

ELK Stack (Elasticsearch, Logstash, Kibana)

Combination of Elasticsearch, Logstash, and Kibana for logging and monitoring containerized environments.

East-West Traffic

Network communication between containers or services within the same cluster or data center.

Edge AI/ML

Deployment of artificial intelligence and machine learning models on edge devices using containers.

Edge Analytics

Processing and analyzing data at the network edge using containerized analytics applications.

Edge Device Management

Tools and practices for managing containerized workloads on edge devices, ensuring consistent deployment and updates.

Edge Orchestration

Management and coordination of containerized applications across distributed edge locations.

Edge Security

Security measures and practices specific to containerized edge computing environments, protecting distributed workloads.

Edge Workload Scheduling

Techniques for efficiently distributing containerized workloads across edge devices, optimizing resource usage.

Edge-Cloud Syncing

Synchronization of data and state between edge containers and cloud-based systems, ensuring consistency.

Egress Gateway

Component controlling outbound traffic from a container cluster to external services, enhancing security and traffic management.

Egress Gateways

Service mesh components managing outbound traffic from the mesh to external services, providing fine-grained control.

Egress Traffic Control

Management and policies for outbound network traffic from containers, ensuring security and compliance.

Elastic APM

Application Performance Monitoring tool for containerized applications in the Elastic Stack.

Encrypted Secrets

Sensitive data stored in an encrypted form in container orchestration platforms, enhancing security.

End-to-End Testing

Comprehensive testing of containerized applications from start to finish, validating entire system functionality.

EndpointSlices

Kubernetes API resource providing a more scalable alternative to Endpoints for service discovery.

Environment Variables in Containers

Key-value pairs passed to containers at runtime, used for configuration and runtime behavior control.

Envoy Proxy

High-performance proxy often used in service mesh implementations for containerized environments.

Ephemeral Containers

Temporary containers used for troubleshooting or debugging in Kubernetes pods, without affecting the main containers.

Ephemeral Volumes

Short-lived storage volumes in Kubernetes that share the lifecycle of a pod, useful for temporary data storage.

Equal-Cost Multi-Path (ECMP)

Routing strategy for load balancing network traffic across multiple paths in container networks.

Etcd

Distributed key-value store that provides a reliable way to store data across a cluster of machines.

Event Sinks

Destinations for cluster-level events in container orchestration platforms, used for monitoring and alerting.

Event Sources

Components or services generating events in containerized environments, often used in event-driven architectures.

Event Sourcing

Pattern of storing changes to application state as a sequence of events, often used in microservices architectures.

Event Sourcing Pattern

Design pattern capturing all changes to application state as a sequence of events, useful in distributed systems.

Event Sourcing in Containers

Implementation of event sourcing pattern in containerized microservices architectures, ensuring data consistency.

Event-driven Architectures

Design approach where containerized services produce, detect, and react to events, enabling loose coupling and scalability.

Eviction Policies

Rules determining which pods to terminate when a node is under resource pressure in Kubernetes clusters.