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Glossary AIOps (Artificial Intelligence for IT Operations)

The use of artificial intelligence and machine learning to automate and improve IT operations (e.g., anomaly detection, ...

Associated courses : Dynatrace
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DevOps & Observability Glossary

Find here definitions of key terms around DevOps, orchestration, and observability.

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A/B testing

A testing method used to compare two versions of an application or web page simultaneously to determine which one performs better for users.
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ABAC (Attribute-Based Access Control)

A dynamic access control model where rights are granted based on the attributes of the user, the resource, and the current context.
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ACL (Access Control List)

A list of rules that specifies which users or system processes are granted access to specific objects or system resources.
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Agile

An iterative and incremental software development methodology favoring collaboration, adaptability, and the rapid delivery of business value.
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AIOps (Artificial Intelligence for IT Operations)

The use of artificial intelligence and machine learning to automate and improve IT operations (e.g., anomaly detection, reducing alert noise).
Associated courses : Dynatrace
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Alerting

The process of notifying teams (via email, Slack, Teams) when a specific event, threshold breach, or anomaly is detected.
Associated courses : Prometheus Grafana
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Ansible

An open source IT automation tool (IaC) enabling configuration management, application deployment, and orchestration, operating agentlessly via SSH.
Associated courses : Ansible
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API Gateway

A gateway that acts as a single entry point for all requests to a microservices architecture. It handles routing, security, and rate limiting.
Associated courses : Docker
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API Key

A unique alphanumeric code used to identify, authenticate, and authorize access to an Application Programming Interface (API).
Associated courses : Elasticsearch
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APT / deb

A package management tool (Advanced Package Tool) and archive format (.deb) used by Debian-family Linux distributions (e.g., Ubuntu).
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Architecture

The overall structural design of an IT system, defining its various components, their relationships, and the principles guiding its evolution.
Associated courses : Docker Elasticsearch Prometheus
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Artifact

The final outcome of a software compilation or build process, such as a .jar file, a zip archive, or a Docker image, ready for deployment.
Associated courses : Docker
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Audit

The chronological recording and examination of system records and activities to ensure compliance and security.
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Authentication

The process of verifying the identity of a user or system (e.g., login/password, tokens, biometrics).
Associated courses : Elasticsearch
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Authorization

The process that occurs after authentication to determine if the entity has the necessary rights and privileges to access a resource.
Associated courses : Elasticsearch
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Beats

Lightweight data shippers (like Filebeat, Metricbeat, etc.) installed on servers to collect and send various types of operational data (logs, metrics) to the Elastic Stack.
Associated courses : Beats
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Binary

An executable or pre-compiled file generated from source code, directly readable and executable by a machine.
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DevOps

A culture, movement, and set of practices designed to unify software development (Dev) and IT operations (Ops).
Associated courses : Docker
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DevSecOps

The native integration of security practices from the very beginning and throughout the entire DevOps lifecycle (Shift-Left approach).
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Docker

An open-source platform designed to make it easier to create, deploy, and run applications by isolating them into portable, lightweight software containers.
Associated courses : Docker
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Elasticsearch

A distributed, RESTful search and analytics engine capable of addressing a growing number of use cases, built on Apache Lucene.
Associated courses : Elasticsearch
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GitOps

A continuous deployment practice where a Git repository serves as the single source of declarative truth for infrastructure and applications.
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Grafana

An open-source interactive data visualization platform that allows users to create, explore, and share analytic dashboards from multiple time-series data sources.
Associated courses : Grafana
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Grafana Alloy

An open-source, vendor-neutral telemetry collector designed to replace Grafana Agent, fully compatible with OpenTelemetry (OTel).
Associated courses : Alloy
Associated articles : Grafana Alloy vs Dynatrace ActiveGate : Lequel choisir ?
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Heavyweight Agent

A collection program equipped with extensive local features (processing, filtering, buffering) that consumes more system resources. Example: Logstash.
Associated courses : Beats
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HTTP Code 200 (OK)

An HTTP status code indicating that the client's request was successfully processed by the server.
Associated courses : Grafana
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HTTP Code 403 (Forbidden)

An HTTP status code indicating that the server understood the request but refuses to authorize it, usually due to a lack of permissions.
Associated courses : Grafana
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HTTP Code 404 (Not Found)

An HTTP status code indicating that the requested resource could not be found on the server.
Associated courses : Grafana
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HTTP GET

An HTTP protocol method used to request and retrieve data from a server without causing any side effects (without modifying the resource's state).
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HTTP POST

An HTTP protocol method used to send data to a server, typically for the purpose of creating a new resource.
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Kubernetes

An open-source container orchestration engine (sometimes called K8s) for automating the deployment, scaling, and management of containerized applications.
Associated courses : Kubernetes
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Lightweight Agent

A data collection program installed on a host system, designed to consume minimal resources (CPU, RAM). Example: Filebeat, Promtail.
Associated courses : Beats
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Logstash

An open-source, server-side data processing pipeline that ingests data from a multitude of sources simultaneously, transforms it, and then sends it to a 'stash' like Elasticsearch.
Associated courses : Logstash
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MTTR (Mean Time To Recovery)

A key performance indicator measuring the average time required to restore a service or system after a failure.
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NoOps

A concept where the IT environment is so automated and abstracted (e.g., Serverless, PaaS) that it almost completely removes the need for a dedicated operations team for daily tasks.
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OpenTelemetry

An open source framework providing standards, APIs, and SDKs to collect and export observability data (traces, metrics, logs) in an agnostic way.
Associated courses : Dynatrace Prometheus
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RBAC (Role-Based Access Control)

An access control method where permissions are assigned to specific roles (e.g., admin, reader) rather than directly to individual users.
Associated courses : Elasticsearch
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Repository

A centralized storage location. This can refer to a source code repository (e.g., Git) or an artifact and binary repository (e.g., Harbor, Nexus, Artifactory).
Associated courses : Docker Elasticsearch
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Toil

Manual, repetitive, automatable operational work that is devoid of enduring value and scales linearly with the system's growth.
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YUM / DNF / rpm

Package managers and archive format (.rpm) used by Red Hat-family Linux distributions (e.g., RHEL, CentOS, Fedora).
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