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
index entry

index entry

A record in Git's index file representing the state of a file in the repository.
integration

integration

A connection between Git and other tools or services to enhance functionality and workflow.
key fingerprint

key fingerprint

A short sequence of bytes used to identify a longer public key in Git's GPG signing process.
keychain

keychain

A secure storage system for passwords and keys, often integrated with Git clients for credential management.
keyword

keyword

A reserved word in Git commands or configurations with a specific meaning or function.
label

label

A way to categorize and organize issues and pull requests in GitHub repositories.
license

license

A document in a Git repository specifying how the project can be used, modified, and distributed.
line comment

line comment

A feature in Git platforms allowing users to comment on specific lines of code in pull requests or commits.
line ending

line ending

Characters marking the end of a line, which can cause issues in Git when collaborating across different operating systems.
locked personal account

locked personal account

A GitHub account that has been restricted due to a violation of terms of service or suspicious activity.
main

main

The default name for the primary branch in many Git repositories, replacing 'master' in recent conventions.
management console

management console

An administrative interface for managing Git hosting services, often used in enterprise environments.
markup

markup

A system of annotation used to format text, often used in Git documentation and comments.
members graph

members graph

A visual representation of an organization's membership on Git hosting platforms.
merge conflict

merge conflict

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

milestone

A way to track progress on groups of issues or pull requests in GitHub projects.
mirror

mirror

A complete copy of a repository, including all branches and history, often used for backup or as a full replica.
nested team

nested team

A team within a GitHub organization that is a subset of a larger team, inheriting its permissions.
network graph

network graph

A visual representation of the commit history and branch structure of a Git repository.
news feed

news feed

A personalized list of recent activity on Git platforms, showing updates from followed users and repositories.
non-fast-forward

non-fast-forward

A Git push that introduces new commits to the remote branch that aren't direct descendants of the current remote HEAD.
notification

notification

An alert system on Git platforms to inform users about relevant activities and mentions.
object

object

A fundamental unit in Git's data model, representing content, commits, trees, or tags, identified by a unique SHA-1 hash.
object database

object database

The storage system in Git that contains all versions of project files and metadata, organized by SHA-1 hashes.
object identifier (oid)

object identifier (oid)

A unique SHA-1 hash that identifies a Git object, ensuring data integrity and enabling content-addressable storage.
object name

object name

Another term for the SHA-1 hash that uniquely identifies a Git object in the repository.
object type

object type

The classification of Git objects, including blob (file content), tree (directory structure), commit, and tag.
octopus

octopus

A Git merge involving more than two branches simultaneously, creating a commit with multiple parents.
organization

organization

A shared account on Git hosting platforms where businesses and open-source projects can collaborate across many projects.
organization owner

organization owner

A user with administrative privileges for an organization account on Git hosting platforms.
orphan

orphan

A branch in Git with no parent commit, typically used to start a new history unrelated to existing branches.
outside collaborator

outside collaborator

A user granted access to a repository but not a member of the organization that owns the repository.
overlay

overlay

A Git feature that allows files from one branch to temporarily override files in another branch without merging.
owner

owner

The user or organization with administrative rights to a Git repository, controlling access and settings.
pack

pack

A compressed file format used by Git to store multiple objects efficiently, reducing repository size.
pack index

pack index

A file that provides fast random access to objects stored within a packfile in Git.
parent

parent

A commit from which another commit is derived, establishing the hierarchical relationship in Git history.
parent team

parent team

A team in a Git platform that grants its permissions to nested sub-teams within an organization.
participating notifications

participating notifications

Alerts received when you're directly involved in repository activities like being assigned or mentioned.
pathspec

pathspec

A pattern used in Git commands to limit the scope of operations to specific files or directories.
peel

peel

The process of recursively dereferencing a Git object to reveal its underlying object type.
per-worktree ref

per-worktree ref

A reference specific to a particular working tree in a Git repository with multiple worktrees.
permalink

permalink

A URL that points to a specific version of a file or directory in a Git repository, ensuring consistent reference.
personal account

personal account

An individual account on Git platforms, used for personal projects and contributions.
pickaxe

pickaxe

A Git feature for searching the repository history to find when a particular change was introduced.
pinned repository

pinned repository

A featured repository prominently displayed on a user's or organization's profile page on their Git hosting platform of choice.
plumbing

plumbing

Low-level Git commands that expose internal workings, primarily used for scripting and advanced operations.
porcelain

porcelain

High-level Git commands designed for everyday use, providing a user-friendly interface to common version control tasks.
pre-receive hooks

pre-receive hooks

Server-side scripts that run before pushed commits are accepted, used to enforce policies or perform checks.
primary email address

primary email address

The main email associated with a Git account, used for communications and commit author identification.
private contributions

private contributions

Contributions made to private repositories, typically only visible to repository collaborators.
private repository

private repository

A Git repository with restricted access, visible only to the owner and explicitly granted collaborators.
production branch

production branch

A Git branch that represents the stable, deployed version of a project, often protected from direct changes.
profile

profile

A user's public page on a Git platform, displaying information about their activity and repositories.
profile photo

profile photo

An image representing a user on a Git platform, displayed alongside their contributions and activities.
project board

project board

A kanban-style board in Git platforms for organizing and prioritizing project issues and pull requests.
protected branch

protected branch

A branch with rules enforcing certain conditions before changes can be pushed, merged, or deleted.
pseudoref

pseudoref

A Git reference that doesn't follow the standard refs format but is treated similarly, like HEAD or MERGE_HEAD.
public contributions

public contributions

Contributions made to public repositories, visible on a user's profile and activity feed.
public repository

public repository

A Git repository that is openly accessible to anyone, allowing viewing and often cloning without authentication.
pull access

pull access

Permission level in Git allowing a user to clone a repository and fetch updates, but not push changes.
pull request review

pull request review

The process of examining proposed changes in a pull request before they are merged into the main codebase.
pulse graph

pulse graph

A visual representation of a GitHub repository's recent activity, including commits, issues, and pull requests.
punch graph

punch graph

A visualization of commit frequency over time, often displayed as a heatmap on Git platforms.
push a branch

push a branch

The act of uploading commits from a local branch to a corresponding branch in a remote Git repository.
push access

push access

Permission to upload local changes to a remote Git repository, allowing direct modification of shared branches.
reachability bitmaps

reachability bitmaps

Data structures used to optimize Git operations by quickly determining which objects are reachable from a given commit.
reachable

reachable

Git objects that can be accessed by following the commit history from a given reference point.
read access

read access

Permission to view and clone a Git repository without the ability to make changes or push commits.
recovery code

recovery code

A backup method for accessing a Git account if two-factor authentication is enabled but unavailable.
ref

ref

A name that points to a specific Git object, typically a commit, such as branches or tags.
refs

refs

The collection of references in a Git repository, including branches, tags, and other named pointers to commits.
remote URL

remote URL

The address of a remote Git repository, used for fetching and pushing changes between local and remote repositories.
remote repository

remote repository

A version of a Git project hosted on a server, serving as a central point for collaboration and backup.
remote-tracking branch

remote-tracking branch

A local reference that represents the state of a corresponding branch in a remote repository.
replica

replica

A copy of a Git repository, often used in distributed systems for redundancy and load balancing.
repository cache

repository cache

A local storage of repository data used to improve performance in Git operations.
repository graph

repository graph

A visual representation of the commit history and branch structure in a Git repository.
repository maintainer

repository maintainer

A person responsible for managing a Git repository, reviewing contributions, and maintaining project quality.
required pull request review

required pull request review

A protection rule requiring one or more reviewers to approve changes before merging in Git platforms.
required status check

required status check

A condition that must be met, such as passing tests, before changes can be merged into a protected branch.
resolve

resolve

The process of addressing and fixing merge conflicts in Git, typically done manually by the developer.
revert

revert

A Git operation that creates a new commit that undoes the changes made by a previous commit.
review

review

The process of examining proposed changes in a pull request before merging them into the main codebase.
revision

revision

A specific version of a file, directory, or entire repository in Git, often referenced by a commit hash.
rewind

rewind

The act of moving a branch pointer to an earlier commit in Git, effectively undoing more recent commits.
root directory

root directory

The top-level directory of a Git repository, containing all project files and the .git subdirectory.
root filesystem

root filesystem

The base filesystem of a Git repository, from which all other directories and files are organized.
saved reply

saved reply

A pre-written response that can be quickly inserted into issues or pull request comments on Git platforms.
scope

scope

The range of access or permissions granted to a token or application in Git-based systems.
seat

seat

A licensed user in enterprise Git hosting plans, typically representing a single user account.
secret team

secret team

A team in a Git organization that is hidden from non-members and other teams within the organization.
security log

security log

A record of security-related events and actions in a system, used for monitoring and auditing purposes.
server-to-server request

server-to-server request

An authenticated request between Git servers, often used in integrations or automated processes.
service hook

service hook

A mechanism for Git platforms to send event notifications to external services or applications.
shallow repository

shallow repository

A Git repository with an intentionally truncated history, often created through shallow cloning.
single sign-on

single sign-on

An authentication process allowing users to access multiple Git-related services with one set of credentials.
special ref

special ref

A Git reference with a specific meaning or function, such as HEAD or FETCH_HEAD.
staging instance

staging instance

A deployment environment used for testing changes before releasing to production in Git-based workflows.
star

star

A feature on Git hosting platforms allowing users to bookmark repositories of interest.

3D Stacked Memory for Cloud Servers

High-density memory architecture using vertically stacked chips, enhancing performance and capacity in cloud server hardware.

5G Cloud

Cloud infrastructure optimized for 5G networks, supporting high-speed, low-latency services and applications.

5G Network Slicing

Technique to create multiple virtual networks on a shared physical 5G infrastructure, each optimized for specific use cases.

5G and Edge Computing

Integration of 5G networks with edge computing to enable low-latency, high-bandwidth applications closer to end-users.

6G Cloud Integration

Future convergence of 6G networks with cloud computing, promising ultra-high speeds and advanced capabilities.

ACID Compliance

Database transaction properties (Atomicity, Consistency, Isolation, Durability) ensuring data integrity in cloud environments.

AI Ethics Compliance Tools

Software ensuring AI systems adhere to ethical guidelines and regulations in cloud deployments.

AI Ethics and Bias Detection Tools

Software for identifying and mitigating ethical issues and biases in AI models deployed in cloud environments.

AI Ethics and Governance Tools

Solutions for managing ethical considerations and regulatory compliance in cloud-based AI systems.

AI Governance Frameworks

Structured approaches for managing AI development, deployment, and use in cloud environments.

AI Model Governance Platforms

Comprehensive solutions for managing, monitoring, and controlling AI models in cloud-based systems.

AI Model Interpretability Services

Cloud-based tools for explaining and understanding the decision-making processes of AI models.

AI Model Interpretability Tools

Software for analyzing and explaining AI model decisions, crucial for transparency in cloud AI services.

AI Model Marketplaces

Cloud platforms for discovering, sharing, and monetizing pre-trained AI models and algorithms.

AI Model Monitoring and Drift Detection

Tools for tracking AI model performance and identifying deviations from expected behavior in cloud environments.

AI Model Versioning and Governance

Systems for managing different versions of AI models and enforcing governance policies in cloud deployments.

AI-Assisted Coding Platforms

Cloud-based development environments that use AI to assist programmers in writing and optimizing code.

AI-Augmented Analytics

Integration of AI capabilities into data analytics processes in cloud environments for enhanced insights.

AI-Driven Capacity Planning

Use of AI algorithms to predict and optimize resource allocation in cloud infrastructures.

AI-Driven Cloud Optimization

Application of AI techniques to improve efficiency, performance, and cost-effectiveness of cloud resources.

AI-Driven Cloud Resource Allocation

Automated distribution of cloud resources using AI to optimize performance and cost-efficiency.

AI-Driven Cloud Service Composition

AI-based automation of cloud service selection and integration for complex workflows.

AI-Driven Code Generation

Automated creation of source code using AI models, often integrated into cloud development platforms.

AI-Driven Data Classification

Automated categorization and labeling of data using AI algorithms in cloud storage and processing systems.

AI-Driven Network Optimization

Use of AI to improve network performance, efficiency, and security in cloud environments.

AI-Driven Resource Allocation

Intelligent distribution of computing resources in cloud environments using AI algorithms.

AI-Driven Security Information and Event Management (SIEM)

Enhanced SIEM systems using AI for improved threat detection and response in cloud environments.

AI-Driven Threat Detection

Use of AI algorithms to identify and analyze potential security threats in cloud systems.

AI-Driven Threat Hunting

Proactive search for hidden threats in cloud environments using AI-powered analytics and automation.

AI-Optimized Cloud Hardware

Cloud infrastructure components designed or configured to enhance AI workload performance.

AI-Optimized Databases

Database systems tailored for AI workloads, often featuring in-memory processing and distributed architectures.

AI-Powered Anomaly Detection

Use of AI algorithms to identify unusual patterns or behaviors in cloud systems and data.

AI-Powered Integration

Intelligent automation of data and application integration processes in cloud environments using AI.

AI-as-a-Service

Cloud-based offering of AI capabilities, allowing businesses to leverage AI without extensive in-house expertise.

AI-as-a-Service (AIaaS)

Cloud-based AI capabilities offered as a service, enabling easy integration of AI into applications.

AIOps

Application of AI for automating and enhancing IT operations management in cloud environments.

AIOps Platforms

Integrated solutions leveraging AI for automated monitoring, analysis, and management of cloud IT operations.

AIOps for Predictive Maintenance

Use of AI-driven analytics to forecast and prevent system failures in cloud infrastructure.

API Security Gateway

Service that protects APIs in cloud environments by managing access, monitoring traffic, and preventing attacks.

API Security Gateways

Dedicated services for securing and managing APIs in cloud environments, including access control and threat protection.

API-First Development

Design approach prioritizing API creation before implementation, common in cloud-native application development.

API-Led Connectivity

Integration strategy using purpose-built APIs to connect data, devices, and applications in cloud ecosystems.

AR Cloud

Persistent 3D digital content overlaid on the physical world, accessible via cloud infrastructure for augmented reality applications.

AR/VR Analytics

Cloud-based tools for analyzing user behavior and performance in augmented and virtual reality environments.

AR/VR Collaboration Platforms

Cloud-hosted services enabling multi-user interaction in shared augmented or virtual reality spaces.

AR/VR Content Delivery Network

Specialized CDN optimized for delivering AR/VR content with low latency and high bandwidth.

AR/VR Development Platforms

Cloud-based tools and services for creating, testing, and deploying augmented and virtual reality applications.

ARM Templates (Azure)

JSON-based files defining infrastructure and configuration for Azure resource deployment.

Adaptive User Interfaces for Cloud Services

Dynamic UIs that adjust based on user behavior, device capabilities, and context in cloud applications.

Adversarial Machine Learning Detection

Techniques to identify and mitigate attacks on ML models in cloud-based AI systems.

Alerting and Notification

Systems for informing administrators or users about important events or issues in cloud environments.

Algorithmic Auditing

Process of examining AI algorithms for bias, errors, or unintended consequences in cloud-based systems.

Ambient Computing Interfaces for Cloud

Seamless, context-aware interaction methods for accessing cloud services in IoT environments.

Anomaly Detection Systems

Tools for identifying unusual patterns or behaviors in cloud systems, often using machine learning techniques.

Application-Aware Networking

Network management approach that optimizes performance based on specific application requirements in cloud environments.

Approximate Query Processing

Technique for quickly estimating query results in large-scale cloud databases, trading accuracy for speed.

Archive Storage (e.g., Amazon Glacier, Azure Archive Storage)

Low-cost cloud storage for infrequently accessed data with longer retrieval times, e.g., Amazon Glacier, Azure Archive Storage.

Artifact Repository

Cloud-based storage for software build outputs, dependencies, and related metadata.

Artificial General Intelligence (AGI) as a Service

Hypothetical cloud offering of human-level AI capabilities across various domains.

Artificial General Intelligence Research Platforms

Cloud-based environments for developing and testing advanced AI systems approaching human-level intelligence.

Audit Logging

Systematic recording of actions and events in cloud systems for security and compliance purposes.

Audit Trails

Chronological records of system activities for reconstructing and examining the sequence of events in cloud environments.

Augmented Analytics

Integration of machine learning and natural language processing in cloud-based data analytics workflows.

Augmented Reality (AR) Cloud

Shared, persistent digital content overlaid on the physical world, accessible via cloud infrastructure.

Augmented Reality Cloud Interfaces

Cloud-based systems for managing and delivering AR content and experiences, enabling scalable AR applications.

Augmented Reality Cloud Rendering

Cloud-powered generation of AR graphics and content, offloading processing from end-user devices.

Auto Scaling Groups

Collections of EC2 instances that automatically adjust capacity based on defined conditions.

Auto-scaling

Automatic adjustment of cloud resources to match workload demands, ensuring optimal performance and cost-efficiency.

AutoML

Automated machine learning processes for model selection, hyperparameter tuning, and feature engineering in cloud environments.

AutoML in the Cloud

Cloud-based services automating the machine learning pipeline from data preparation to model deployment and monitoring.

Automated AI Pipeline Optimization

AI-driven tools for improving efficiency and performance of machine learning workflows in the cloud.

Automated Cloud Governance Enforcement

Systems that automatically implement and maintain cloud resource policies and compliance.

Automated Compliance Monitoring

Continuous, AI-driven assessment of cloud systems against regulatory and security standards.

Automated Data Discovery

AI-powered tools for identifying, categorizing, and mapping data assets in cloud environments.

Automated Data Governance

AI-driven systems for managing data quality, security, and compliance in cloud environments.

Automated Data Wrangling Services

Cloud-based tools using AI to clean, transform, and prepare data for analysis, streamlining data preparation processes.

Automated Feature Engineering

AI-powered generation and selection of features for machine learning models in cloud environments.

Automated Incident Response Orchestration

AI-driven coordination of security incident detection and resolution in cloud systems, automating response workflows.

Automated Machine Learning (AutoML)

Cloud services that automate the process of creating and optimizing machine learning models, from data prep to deployment.

Automated Machine Learning (AutoML) Platforms

Cloud-based systems that automate the end-to-end machine learning model development process, including feature engineering and model selection.

Automated Penetration Testing

AI-driven tools for simulating cyberattacks to identify vulnerabilities in cloud systems and applications.

Automated Threat Modeling

AI-powered analysis of cloud architectures to identify potential security risks and attack vectors.

Autonomous Systems in the Cloud

Self-managing, self-healing cloud services requiring minimal human intervention, leveraging AI for operations.

Azure Edge Zones

Ultra-low latency edge computing extensions of Azure for 5G networks, bringing cloud resources closer to users.

Azure Policy

Service for creating, assigning, and managing policies to control Azure resources and ensure compliance.

B2B Integration Platforms

Cloud-based services facilitating data exchange and process integration between business partners.

Backend for Frontend (BFF) Pattern

Architectural approach creating backend services tailored to specific frontend application needs in cloud environments.

Bare Metal Server

Physical server dedicated to a single tenant, offering direct hardware access in cloud environments.

Bare Metal Servers

Dedicated physical servers without virtualization, offered as a cloud service for high-performance workloads.

Batch Processing (e.g., AWS Batch, Azure Batch)

Execution of series of jobs without user interaction, often for large-scale data processing in the cloud (e.g., AWS Batch, Azure Batch).

Big Data Clusters

Distributed computing environments for processing and analyzing massive datasets in the cloud.

Billing Dashboard

Interface for monitoring and managing cloud service usage and costs, providing detailed breakdowns and forecasts.

Biocomputing in the Cloud

Use of cloud resources for computational biology and genomics research, enabling large-scale analysis and modeling.

Biodiversity Impact Assessment for Cloud Facilities

Evaluation of cloud data center effects on local ecosystems and wildlife to ensure sustainable operations.

Block Storage

Cloud storage that provides fixed-size raw storage volumes, typically used for databases or file systems.

Block Storage (e.g., Amazon EBS, Azure Disk Storage)

Cloud services providing persistent block-level storage volumes for use with compute instances.

Blockchain Analytics

Cloud-based tools for analyzing and visualizing blockchain data and transactions, offering insights into network activity.

Blockchain Databases

Distributed databases using blockchain technology for enhanced security and immutability in cloud environments.

Blockchain Governance Tools

Software for managing and enforcing rules, permissions, and consensus mechanisms in blockchain networks deployed on cloud platforms.

Blockchain Integration Services

Cloud-based solutions for connecting blockchain networks with existing enterprise systems and applications.

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).