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

"As code"

Defining and managing infrastructure, configurations, or processes using code, enabling version control, automation, and reproducibility.
DevOps

"Nines"

Measure of system availability, expressed as a percentage. E.g., "five nines" means 99.999% uptime, allowing for minimal downtime.
DevOps

"Single Pane of Glass"

Unified display or interface that integrates data from multiple sources, providing a comprehensive view of system status or operations.
DevOps

A/B Testing

Comparing two versions of a webpage or app to determine which performs better, based on user interaction and conversion rates.
DevOps

AIOps (Artificial Intelligence Operations)

Using AI and machine learning to enhance IT operations, automating tasks and providing insights for better decision-making.
DevOps

ALB (Application Load Balancing)

Distributes incoming application traffic across multiple targets to improve availability and fault tolerance.
DevOps

API

Application Programming Interface; set of protocols and tools for building software applications and enabling communication between systems.
DevOps

API Discovery

Process of identifying and documenting available APIs within an organization or from external sources.
DevOps

API Endpoint

Specific URL where an API can be accessed and where requests are sent to interact with a server or service.
DevOps

API Gateway

Manages, secures, and routes API requests, acting as a single entry point for multiple microservices or backend systems.
DevOps

API Management

Process of creating, publishing, documenting, and analyzing APIs in a secure environment.
DevOps

API Monitoring

Tracking API performance, availability, and usage to ensure optimal functionality and identify issues.
DevOps

API Response Time

The duration between sending a request to an API and receiving the response, crucial for performance evaluation.
DevOps

API Security

Measures and practices to protect APIs from unauthorized access, attacks, and data breaches.
DevOps

API Versioning

Managing different versions of an API to maintain compatibility while allowing updates and improvements.
DevOps

ASG (Auto Scaling Group)

Feature in cloud computing that automatically adjusts the number of instances based on defined conditions.
DevOps

ASP.Net Core Monitoring

Observing and analyzing the performance and behavior of applications built with ASP.Net Core framework.
DevOps

ATO (Account Takeover)

Type of identity theft where an attacker gains unauthorized access to a user's account.
DevOps

AWS (Amazon Web Services)

Cloud computing platform offering a wide range of services for computing, storage, networking, and more.
DevOps

AWS App Development Tools

Suite of tools provided by AWS for building, testing, and deploying applications on their cloud platform.
DevOps

AWS CLI

Command-line interface for interacting with AWS services, allowing users to manage resources and automate tasks.
DevOps

AWS CloudWatch

Monitoring and observability service for AWS resources and applications, providing metrics, logs, and alarms.
DevOps

AWS CodeDeploy

Fully managed deployment service that automates software deployments to various compute services.
DevOps

AWS CodePipeline

Continuous delivery service for fast and reliable application and infrastructure updates.
DevOps

AWS EC2

Elastic Compute Cloud; scalable computing capacity in the AWS cloud for running virtual servers.
DevOps

AWS ELB

Elastic Load Balancing; automatically distributes incoming application traffic across multiple targets.
DevOps

AWS Lambda

Serverless compute service that runs code in response to events and automatically manages the underlying resources.
DevOps

AWS Managed Services

Ongoing management of AWS infrastructure, allowing customers to focus on their applications and business.
DevOps

AWS Monitoring

Process of tracking and analyzing the performance, health, and usage of AWS resources and applications.
DevOps

AWS RDS

Relational Database Service; managed service for setting up, operating, and scaling relational databases in the cloud.
DevOps

AWS RDS Postgres Monitoring

Tracking and analyzing the performance and health of PostgreSQL databases running on AWS RDS.
DevOps

AWS S3

Simple Storage Service; object storage service offering industry-leading scalability, data availability, and performance.
DevOps

AWS S3 Cost Optimization

Strategies and practices to reduce costs associated with storing and accessing data in AWS S3.
DevOps

AWS Security

Set of tools, services, and best practices for protecting data, applications, and infrastructure in the AWS cloud.
DevOps

Acceptance Test-Driven Development (ATDD)

Software development approach where acceptance tests are written before the code, guiding implementation.
DevOps

Active Directory

Microsoft's directory service for Windows domain networks, managing users, computers, groups, and other objects.
DevOps

Advanced Rate Limiting

Technique to control the rate of incoming requests to an API or service, preventing overload and ensuring fair usage.
DevOps

Agent

Software component that performs automated tasks, often used in monitoring, data collection, or system management.
DevOps

Agile

Iterative approach to software development emphasizing flexibility, collaboration, and rapid delivery of working software.
DevOps

Agile Manifesto

Document outlining values and principles of Agile software development, prioritizing individuals, working software, and adaptability.
DevOps

Agile Methodology

Set of practices based on Agile principles, focusing on iterative development, team collaboration, and customer feedback.
DevOps

Agile Organization

Company structure that emphasizes adaptability, quick response to change, and continuous improvement.
DevOps

Agile Project Management

Applying Agile principles to project management, focusing on iterative planning, frequent delivery, and team empowerment.
DevOps

Agile Software Development

Iterative approach to building software, emphasizing flexibility, collaboration, and rapid delivery of working features.
DevOps

Ajax Requests

Technique for creating fast, dynamic web pages by exchanging small amounts of data with the server behind the scenes.
DevOps

Alerting

System for notifying relevant personnel about critical events or issues in IT infrastructure or applications.
DevOps

Amazon Aurora

Fully managed relational database engine compatible with MySQL and PostgreSQL, designed for the cloud.
DevOps

Amazon Web Services (AWS)

A cloud platform offering a wide range of services like computing power, storage, and databases, enabling scalable, flexible solutions.
DevOps

Android Deployment

Process of distributing and installing Android applications on devices or making them available through app stores.
DevOps

Android Emulator

Software tool that simulates Android devices on a computer for testing and development purposes.
DevOps

Android Studio

Official integrated development environment (IDE) for Android app development, offering a comprehensive set of tools and features.
DevOps

Anomaly Detection

Process of identifying unusual patterns or behaviors that deviate from expected norms in data or system behavior.
DevOps

Ansible

Open-source automation tool for configuration management, application deployment, and task automation.
DevOps

Antifragile

Quality of systems that gain strength from disorder or stress, becoming more resilient in the face of challenges.
DevOps

Apache

Popular open-source web server software that can run on various platforms, known for its reliability and extensive feature set.
DevOps

App Store Connect

Apple's platform for managing apps, viewing analytics, and submitting to the App Store.
DevOps

AppDynamics

Application performance management and IT operations analytics platform for monitoring and optimizing application performance.
DevOps

Application Containerization

Packaging software code and dependencies into lightweight, portable containers for consistent deployment across environments.
DevOps

Application Firewall

Security system that monitors, filters, and blocks HTTP/HTTPS traffic to and from web applications.
DevOps

Application Infrastructure

The hardware, software, and networking components required to run and support an application.
DevOps

Application Lifecycle Management

Process of managing an application from ideation through retirement, including development, testing, and maintenance.
DevOps

Application Migration

Process of moving an application from one environment to another, often involving cloud or platform transitions.
DevOps

Application Performance Monitoring (APM)

Tools and practices for monitoring and managing the performance and availability of software applications.
DevOps

Application Platform

Software framework that provides a foundation for developing and running applications, often including runtime services and APIs.
DevOps

Application Program Interface (API)

Set of protocols, routines, and tools for building software applications and enabling communication between different software systems.
DevOps

Application Release Automation (ARA)

Process of packaging and deploying applications automatically across various environments and platforms.
DevOps

Application Security

Measures taken to improve the security of an application by finding, fixing, and preventing vulnerabilities.
DevOps

Application Team

Group responsible for developing, maintaining, and improving a specific application or set of applications.
DevOps

Application Whitelisting

Security practice that specifies which applications are permitted to run on a system, blocking all others.
DevOps

Application Workflow

Sequence of tasks or processes within an application, often automated to improve efficiency and consistency.
DevOps

Aptly

Debian repository management tool that makes it easy to mirror existing repositories and create new ones.
DevOps

Artifact

Any file or object produced during the software development process, such as compiled code, documentation, or test results.
DevOps

Artifactory

Repository manager for storing and managing software packages, artifacts, and dependencies.
DevOps

Artifacts

Byproducts of software development, including executables, libraries, documentation, and other files created during the process.
DevOps

Artificial Intelligence (AI)

Computer systems capable of performing tasks that typically require human intelligence, such as learning and problem-solving.
DevOps

Asgard

Open-source web-based tool for cloud management and application deployment, primarily used with Amazon Web Services.
DevOps

Asterisk

Open-source framework for building communications applications, particularly used for creating custom telephone systems.
DevOps

Atom

Open-source text and source code editor developed by GitHub, known for its customizability.
DevOps

Attack Surface

Total sum of vulnerabilities in a given system that are accessible to an attacker.
DevOps

Attack Vector

Method or pathway used by a malicious actor to gain unauthorized access to a computer or network.
DevOps

Audit Log

Chronological record of system activities, providing a trail for tracking user actions and system events.
DevOps

Auditd

Linux daemon that monitors and logs system activities to detect security violations.
DevOps

Authentication Factor

Piece of information or process used to verify a user's identity, such as passwords, biometrics, or security tokens.
DevOps

Automated Builds

Process of compiling source code into executable software without manual intervention, often part of CI/CD pipelines.
DevOps

Automation

Use of technology to perform tasks with minimal human intervention, improving efficiency and reducing errors.
DevOps

Autonomy

Degree of independence and self-governance given to teams or systems in making decisions and performing tasks.
DevOps

Awsbox

Tool for deploying node.js apps to Amazon Web Services, simplifying the process of setting up and managing instances.
DevOps

Azure

Microsoft's cloud computing platform providing a wide range of services for building, testing, deploying, and managing applications.
DevOps

Back-end

Server-side of a website or application, responsible for data storage, security, and business logic.
DevOps

Backup

Copy of data created to protect against loss or damage, often stored separately from the original for recovery purposes.
DevOps

Bad/Threat Actor

Individual or entity that attempts to exploit vulnerabilities in systems or networks for malicious purposes.
DevOps

Baklava code

Term describing code that has too many layers, making it overly complex and difficult to understand or maintain.
DevOps

Bamboo

Continuous integration and deployment server by Atlassian, automating the building, testing, and deployment of software.
DevOps

Bare-metal

Physical computer server dedicated to a single tenant, not virtualized or shared among multiple users.
DevOps

Barkeep

Open-source web-based code review system that facilitates collaborative code reviews and discussions.
DevOps

Bash

Unix shell and command language, widely used for scripting and automating tasks in Unix-like operating systems.
DevOps

Bastion host

Specially designed system on a network specifically intended to withstand attacks, usually placed at the edge of a network.
DevOps

Bazel

Open-source build and test tool that enables fast, reproducible builds across multiple platforms and languages.
DevOps

Beats

Lightweight data shippers for various types of data, part of the Elastic Stack for log and metrics collection.
DevOps

Behavior-Driven Development (BDD)

Software development approach that focuses on defining the behavior of an application based on user stories.
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.

Workflows as Code

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

Workload Placement Optimization

Techniques for efficiently distributing applications and data across cloud resources.

Workload Portability

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

Workload-Aware Data Placement

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

Zero Trust Network Access (ZTNA)

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

Zero Trust Security Model

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

Zero UI Cloud Interactions

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

Zero-Knowledge Proof Services

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

Zero-Knowledge Proof Systems

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

Zero-Trust Microsegmentation

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

Zero-Trust Network Access (ZTNA)

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

Zoned Namespaces (ZNS) SSDs

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

eBPF (extended Berkeley Packet Filter)

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

eBPF-based Networking

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

Ceph RadosGW

Object storage gateway for Ceph, providing S3-compatible API for container storage needs in Kubernetes.

Cgroup (Control Group)

Linux kernel feature for limiting, prioritizing, and isolating resource usage of container groups.

Change Data Capture (CDC)

Technique for tracking and capturing changes in databases, useful in microservices architectures.

Chaos Engineering in CI/CD

Practice of intentionally injecting failures in CI/CD pipelines to improve system resilience.

Chaos Mesh for Reliability Testing

Platform for simulating various abnormal scenarios in Kubernetes environments to test reliability.

Checkov for IaC Security Scanning

Static code analysis tool for detecting misconfigurations in Infrastructure as Code deployments.

Cilium

Open-source networking, observability, and security solution for container workloads based on eBPF.

Cilium Service Mesh

eBPF-powered service mesh offering high-performance traffic management and security for microservices.

Cilium's Hubble for Network Observability

Observability platform for Kubernetes providing deep visibility into container network flows.

Cilium's eBPF Datapath

High-performance networking mode in Cilium using extended Berkeley Packet Filter for packet processing and security.

CircleCI

Continuous integration and delivery platform supporting containerized application testing and deployment.

Circuit Breaker Pattern

Fault tolerance pattern preventing cascading failures in distributed containerized systems.

Circuit Breaking

Technique to detect failures and prevent system overload in microservices architectures, enhancing resilience.

Claim Check Pattern for Large Messages

Design pattern for handling large payloads in microservices by storing data externally, improving efficiency.

Clair for Static Image Analysis

Open-source tool for static analysis of vulnerabilities in container images, enhancing security.

Cloud Controller Manager

Kubernetes component managing interactions between cluster and cloud provider APIs, enabling cloud integration.

Cloud Native Application Bundle (CNAB)

Specification for packaging and managing distributed applications across different environments.

Cloud-Native Buildpacks

Tooling for building container images from source code without Dockerfiles, adhering to best practices.

Cloud-Native Design Patterns

Architectural patterns specifically tailored for distributed, containerized applications in cloud environments.

CloudEvents

Specification for describing event data in common formats, facilitating event-driven architectures in cloud environments.

CloudEvents Specification

Isolation technique in containerized microservices to prevent failure propagation across the system.

Cluster

Group of servers or other resources that work together as a single system to provide high availability.

Cluster API

Kubernetes project for declarative management and provisioning of clusters using Kubernetes-style APIs.

Cluster API Provider

Implementation of Cluster API for specific infrastructure providers, enabling cluster lifecycle management.

Cluster Autoscaler

Kubernetes component that automatically adjusts the size of a cluster based on resource demands.

Cluster Capacity Planning

Process of estimating and allocating resources needed for container workloads in a cluster.

Cluster Federation

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

Cluster Mesh

Interconnected network of container clusters, enabling cross-cluster communication and resource sharing.

Cluster Networking

Network configuration and management within and between container clusters, enabling inter-container communication.

Cluster Upgrade Process

Procedure for updating the Kubernetes version and components of a cluster while minimizing disruptions.

Cluster-level Logging

Centralized logging solution capturing logs from all containers and nodes in a cluster, aiding in troubleshooting.

ClusterAutoscaler

Kubernetes component that automatically adjusts the number of nodes in a cluster based on resource utilization.

ClusterIP

Kubernetes service type that exposes the service on an internal IP within the cluster, facilitating internal communication.

ClusterIP Services

Kubernetes services accessible only within the cluster, used for internal communication between pods.

ClusterRole

Kubernetes RBAC resource defining permissions across an entire cluster, not limited to a single namespace.

ClusterRoleBinding

Kubernetes RBAC resource that binds a ClusterRole to users, groups, or service accounts across all namespaces.

ClusterServiceVersion (CSV)

Custom resource in Operator Lifecycle Manager describing a specific version of an Operator.

Codefresh GitOps

GitOps platform for managing and automating containerized application deployments, streamlining CD workflows.

Cold Start Optimization

Techniques to reduce initialization time of containers, particularly important in serverless environments.

Compensating Transaction Pattern

Design pattern for handling failures in distributed container-based systems by reversing or compensating actions.

ConfigMap

Kubernetes API object used to store non-confidential data in key-value pairs, accessible by pods.

Consul Connect

Service mesh feature of Consul providing secure service-to-service communication with automatic TLS encryption.

Container

Standardized unit of software that packages code and all its dependencies for quick, reliable deployment.

Container Breakout Techniques

Methods used by attackers to escape container isolation and access the host system, posing security risks.

Container Engine

Software responsible for managing container lifecycle, including creation, execution, and destruction.

Container Escape

Security vulnerability allowing a process to break out of container isolation and access the host system.

Container Escape Prevention

Security measures and best practices to prevent containers from breaking out of their isolation.

Container Escape Vulnerabilities

Weaknesses in container runtimes or configurations that could allow processes to escape isolation.

Container Health Checks

Mechanisms to verify the health and readiness of containerized applications, ensuring service availability.

Container Host

Physical or virtual machine running the container runtime and hosting containers, providing the execution environment.

Container Image Promotion

Process of moving container images through different environments (e.g., dev, test, prod) in a controlled manner.

Container Image Signing

Cryptographic process of digitally signing container images to ensure their integrity and authenticity during distribution.

Container Lifecycle

Stages a container goes through from creation to termination, including running, paused, and stopped states.

Container Lifecycle Management

Processes and tools for managing containers throughout their lifecycle, from creation to deletion.

Container Logging

Process of capturing and managing log output from containerized applications for monitoring and troubleshooting.

Container Manifest

Configuration file specifying how to build a container image, including base image, commands, and environment setup.

Container Metrics

Quantitative measures of container performance, resource usage, and health, used for monitoring and optimization.

Container Network Interface (CNI)

Specification and libraries for configuring network interfaces in Linux containers, standardizing networking.

Container Network Interface (CNI) Spec

Standard for developing plugins to configure network interfaces in Linux containers, ensuring interoperability.

Container Networking Model

Architecture and principles governing how containers communicate within and across hosts in orchestrated environments.

Container Orchestration

Automated arrangement, coordination, and management of software containers, crucial in large-scale deployments.

Container Probes (Liveness, Readiness, Startup)

Kubernetes mechanisms (liveness, readiness, startup) for checking container health and controlling lifecycle.

Container Real User Monitoring (RUM)

Technique for capturing and analyzing real user interactions with containerized applications.

Container Restart Policies

Rules defining how containers should be restarted in case of failures or exits, enhancing application resilience.

Container Runtime

Software responsible for running containers, managing their lifecycle from creation to deletion.

Container Runtime Security

Measures and tools to protect containers during execution, preventing unauthorized access or malicious activities.

Container Shims

Lightweight processes that manage the lifecycle of containers and provide abstraction between runtimes.

Container Storage Interface (CSI)

Standardized interface for container orchestration platforms to interact with storage systems.

Container Storage Interface (CSI) Spec

Standard for developing storage plugins for container orchestration platforms, enabling storage extensibility.

Container Vulnerability Scanning

Process of identifying security vulnerabilities in container images and their dependencies.

Content Trust

Mechanism for verifying the integrity and authenticity of container images before deployment.

Continuous Deployment

Automated process of releasing container images to production environments after passing tests.

Continuous Verification

Ongoing process of validating deployed containers against defined policies and expectations.

Contiv-VPP for High-performance Networking

Container networking solution using VPP (Vector Packet Processing) for optimized performance.

Contract-First API Development

Approach prioritizing API definition before implementation, crucial for microservices architecture.

Control Groups (cgroups)

Linux kernel feature for limiting, prioritizing, and isolating resource usage of container groups.

Control Plane

Components managing the overall state of a container cluster, including API server, scheduler, and controllers.

Control Plane Upgrade

Process of updating the core components of a container orchestration system while maintaining cluster stability.

Controller Manager

Kubernetes component running controller processes to regulate the state of the cluster, maintaining desired state.

Controller Runtime

Software framework for building Kubernetes controllers and operators, simplifying custom resource management.

Conversion Webhooks

Kubernetes feature allowing custom resource API version conversions via external webhooks.

Copy-on-Write (CoW)

Storage optimization technique used in container filesystems to reduce duplication and improve efficiency.

Cordon

Process of marking a node as unschedulable in Kubernetes, preventing new pods from being assigned to it.

CoreDNS

Flexible, extensible DNS server used for service discovery in Kubernetes clusters, replacing kube-dns.

Cortex

Horizontally scalable, multi-tenant, long-term storage for Prometheus metrics, enhancing monitoring capabilities.

Cortex for Multi-tenant Prometheus

Use of Cortex to provide isolated Prometheus monitoring for multiple users or teams in shared environments.

CronJob

Kubernetes object for creating time-based jobs, running containers on a schedule for automated tasks.

CronJob Patterns

Kubernetes patterns for running batch processes and scheduled tasks in containerized environments.

Cross-namespace Operators

Kubernetes operators capable of managing resources across multiple namespaces, enabling broader automation.

Custom Metrics API

Kubernetes API extension allowing pods to consume custom metrics for autoscaling and monitoring.

Custom Resource

Extension of the Kubernetes API that defines new, custom resource types specific to a cluster's needs.

Custom Resource Conversion

Process of converting custom resources between different API versions in Kubernetes, enabling API evolution.

Custom Resource Definition (CRD)

Kubernetes API extension allowing the definition of custom resources, enabling cluster customization.

Custom Resource Definitions (CRDs)

Kubernetes feature for extending the API with custom resources, enabling cluster customization.

Custom Resources

User-defined API objects in Kubernetes, extending the core functionality of the platform for specific use cases.

Custom Scheduler

Alternative or additional scheduler implementation for Kubernetes, allowing custom pod placement logic.

Custom Schedulers

Alternative scheduling implementations in Kubernetes for custom pod placement strategies, enabling specialized scheduling logic.

DNS for Services and Pods

Kubernetes feature providing DNS-based service discovery for containers within the cluster.

DPDK in Container Networks

Use of Data Plane Development Kit for high-performance packet processing in container networks.

DaemonSet

Kubernetes object ensuring that all (or some) nodes run a copy of a specific pod, useful for cluster-wide services.