null Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing IT operations and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

  • R

    RancherOS (Linux)

    RancherOS is a lightweight Linux operating system distribution that includes only the necessary libraries and services to deploy and scale containers.

  • Red Hat Atomic Host

    Red Hat Atomic Host is a variant of the Red Hat Enterprise Linux supported, open source operating system, designed to be a minimal OS with optimizations for container hosting.

  • rolling deployment

    A rolling deployment is the installation of software updates on one server or server subset at a time, rather than updating all servers or server subsets at the same time.

  • S

    SaltStack

    SaltStack, also known as Salt, is a configuration management and orchestration tool.

  • serverless computing

    Serverless computing is an event-driven application design and deployment paradigm in which computing resources are provided as scalable cloud services.

  • ServiceNow

    ServiceNow is a cloud-based self-proclaimed “everything as a service” company focused on facilitating the management of IT services (ITSM), IT operations, IT business and software development.

  • shift left testing

    Shift left testing is an approach used to speed software testing and facilitate development by moving the testing process to an earlier point in the development cycle.

  • site reliability engineering (SRE)

    Site reliability engineering (SRE) is the application of scripting and automation to IT operations tasks such as maintenance and support. The goal of SRE is to swiftly fix bugs and remove manual work in rote tasks.

  • software asset management (SAM)

    Software asset management (SAM) is the part of IT asset management that seeks to ensure compliance with license agreements and prevent overspending on software.

  • software-defined infrastructure control (SDIC)

    Software-defined infrastructure control (SDIC) is an analytics-driven approach to balancing the resources that application programs demand in virtual and cloud environments.

  • system operator (sysop)

    A sysop is the person who runs a computer server.

  • U

    Ubuntu Core

    Ubuntu Core is a transactional version of the Ubuntu Linux OS, made specifically for internet of things (IoT) devices and large container deployments.

  • unikernel

    A unikernel is a library-based operating system that only includes functionalities required by the specific application that runs on it.

  • V

    VMware vSphere Integrated Containers (VIC)

    VMware vSphere Integrated Containers allow an administrator to deploy and manage containers alongside their traditional VMs in vSphere.

  • Y

    YAML (YAML Ain't Markup Language)

    YAML (YAML Ain't Markup Language) is a data-oriented language structure used as the input format for diverse software applications.

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