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Smart Aquaculture glossary of technical terms

by SokanRed

  • ArgoCD

    ArgoCD is a Kubernetes-native continuous delivery tool that automates deploying applications from Git repositories. It continuously monitors Git for changes and ensures the cluster configuration matches what is declared. ArgoCD provides versioning, rollback features, and visual dashboards for deployment status.

  • ArgoCD GitOps

    ArgoCD GitOps refers to using ArgoCD to implement the GitOps methodology, where Git becomes the single source of truth for infrastructure and application configurations. Any change is made through Git commits, and ArgoCD automatically applies these changes to Kubernetes. This ensures consistent, auditable, and automated deployments.

  • Apache

    Apache is a widely used open-source web server software that delivers web pages to users’ browsers. It supports modules that extend its capabilities, such as security, URL rewriting, and caching. Apache is known for its flexibility, stability, and compatibility with many operating systems.

  • Apache Solr

    Apache Solr is an open-source search and indexing engine built on Apache Lucene. It provides fast, scalable full-text search, faceting, and real-time indexing. Solr is used in applications that require advanced search capabilities and large data handling.

  • Apache Zookeeper

    Apache Zookeeper is a centralized service for maintaining configuration data, naming, synchronization, and coordination in distributed systems. It ensures consistency and helps multiple services work together reliably. Zookeeper is commonly used by large-scale systems needing reliable coordination.

  • Cluster

    A cluster is a group of computers (called nodes) that work together as a single system. In Kubernetes or OpenShift: • The cluster includes a control plane (master) and worker nodes. • The control plane manages everything. • The worker nodes run the applications (containers, pods, etc.).  In simple words: A cluster = a team of computers working together to run and manage applications.

  • Concept

    When you install OpenShift Local (crc) on your computer: • It creates and runs a virtual machine (VM) inside your computer. • That VM contains a mini OpenShift cluster — basically, a small, single-node version of OpenShift. • You can then use this local OpenShift environment to develop, test, and deploy applications, just like in a real OpenShift cloud setup. How it works Your Computer (Host) │ ├── Virtual Machine (created by crc) │ ├── Red Hat Enterprise Linux CoreOS (the OS inside VM) │ └── OpenShift Cluster (running inside the VM) │ ├── Kubernetes (container orchestration) │ ├── OpenShift API and Console │ └── Your applications (pods, services, etc.) │ └── crc Command-Line Tool ├── Starts/stops the VM ├── Connects you to the cluster └── Manages OpenShift Local settings

  • Control node

  • Compile

    To compile means to translate human-readable source code into machine-readable executable code. This process is performed by a compiler, which checks the code for errors and converts it into a program the computer can run. Compiling often improves performance and ensures the code works consistently across systems.

  • crc

    crc stands for CodeReady Containers, which was the old name for OpenShift Local. It provides a command-line tool (crc) used to start, stop, and manage the local OpenShift cluster (the small OpenShift environment running on your machine).

  • Data-driven

    Data-driven describes decisions, processes, or systems that rely on actual data rather than intuition or fixed rules. It involves collecting, analyzing, and interpreting data to guide actions and improve outcomes. Data-driven approaches are widely used in business, science, and technology for accuracy and efficiency.

  • GitHub

    GitHub is an online platform for hosting and managing code repositories using the Git version control system. It allows developers to collaborate, track changes, review code, and contribute to projects from anywhere. GitHub also supports issues, documentation, automation tools, and open-source community interaction.

  • GitOps

    GitOps is a methodology where Git is the single source of truth for infrastructure and application configurations. All changes are made through Git commits and automatically applied by automated tools. This improves transparency, version control, and deployment automation.

  • HashiCorp Vault

    HashiCorp Vault is a tool for securely storing, managing, and controlling access to sensitive data such as passwords, tokens, and certificates. It provides encryption, dynamic secrets, and detailed access control. Vault helps protect secrets in complex, distributed environments.

  • Image

    In computing, an image is a single file that contains a complete snapshot of a system, disk, or software environment. It can be used to deploy systems quickly by restoring everything exactly as captured. Images ensure consistency across installations and backup processes.

  • IP addresses

    An IP address is a unique numerical identifier assigned to each device connected to a network using the Internet Protocol. It allows devices to locate and communicate with each other across networks. Public and private IP addresses help organize traffic both on the internet and on local networks.

  • ISO file

    An ISO file is a single digital archive that contains an exact copy of an entire CD, DVD, or other optical disc. It preserves the full file system and structure, making it ideal for distributing operating systems, software packages, or backups. ISO files can be mounted or burned to recreate the original disc.

  • Keycloak

    Keycloak is an open-source identity and access management solution. It provides authentication, authorization, single sign-on (SSO), and user federation. Keycloak integrates easily with modern applications and supports standard protocols like OAuth2 and OpenID Connect.

  • Kubernetes

    Kubernetes (often called K8s) is an open-source system that helps you manage containers (like Docker containers). It automatically handles things like: • Starting and stopping containers, • Balancing traffic, • Scaling up or down based on demand, and • Keeping your applications running smoothly even if something fails.  In short: Kubernetes is the "manager" for containerized applications. It makes sure your apps run the way you want — automatically and reliably.

  • Microservices

    Microservices is an architectural style where an application is built as a collection of small, independent services. Each service performs a specific function and communicates with others over APIs. This approach improves scalability, flexibility, and fault isolation.

  • Networking

    Networking refers to the practice of connecting computers and devices so they can share data and resources. It includes hardware, software, and protocols that allow communication over local or global networks. Effective networking enables email, web browsing, file sharing, and many modern digital services.

  • OpenShift

    OpenShift is a cloud platform created by Red Hat. It helps developers build, deploy, and manage applications easily in containers (like Docker) using Kubernetes. In short, OpenShift is a container orchestration platform that automates the setup and running of applications in the cloud or on-premises.

  • OpenShift Local

    OpenShift Local (formerly called CodeReady Containers or CRC) is a lightweight version of OpenShift that runs on your own computer (laptop or desktop). It lets developers try OpenShift or develop apps locally without needing a large cloud environment.

  • Operating system (OS)

    An operating system is the core software that manages a computer’s hardware and provides essential services for running applications. It allocates resources like memory and processing power, handles files and security, and enables user interaction through interfaces. Essentially, it acts as a bridge between the hardware and the programs you use.

  • Postgres (PostgreSQL)

    Postgres, or PostgreSQL, is a powerful open-source relational database management system known for reliability, robustness, and advanced features. It supports complex queries, extensibility, and strict data integrity. Postgres is widely used for applications that require strong performance, scalability, and compliance with SQL standards.

  • Proprietary software services

    Proprietary software services are applications or platforms owned and controlled by a company, which restricts access to the source code. Users are granted limited rights—usually through paid licenses—to use the software but cannot modify or redistribute it. These services often include support, updates, and features that are managed exclusively by the vendor.

  • Routers

    A router is a device that directs data packets between different networks. It determines the best path for data to travel, ensuring efficient and reliable communication. Routers also often provide security features such as firewalls and network address translation (NAT).

  • Swap space

    Swap space is a reserved area on a storage device that the operating system uses as extra virtual memory when physical RAM is full. It allows the system to move inactive data from RAM to disk, preventing crashes or slowdowns. While helpful, swap space is much slower than RAM, so excessive swapping can reduce performance.

  • Ubuntu

    Ubuntu is a popular open-source Linux-based operating system designed for ease of use and stability. It includes a wide range of software and receives regular security and feature updates. Ubuntu is widely used for desktops, servers, cloud computing, and development environments.

  • Virtual Machine

    A Virtual Machine is a software-based computer that runs inside another computer. It acts like a real computer with its own CPU, memory, storage, and operating system, but it shares the hardware of the main (host) computer. You can run many virtual machines on one physical computer.

  • Worker node

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Deploying Smart Aquaculture on OpenShift Local
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