---
title: Definition list
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > Cdocs e2e tests > Definition list
---

# Definition list

## Overview{% #overview %}

This page contains examples of the definition list component.

## Examples{% #examples %}

### Plain text terms{% #plain-text-terms %}

{% dl %}

{% dt %}
Service
{% /dt %}

{% dd %}
Services are the building blocks of modern microservice architectures - broadly a service groups together endpoints, queries, or jobs for the purposes of building your application.
{% /dd %}

{% dt %}
Resource
{% /dt %}

{% dd %}
Resources represent a particular domain of a customer application - they are typically an instrumented web endpoint, database query, or background job.
{% /dd %}

{% /dl %}

### Code-formatted terms{% #code-formatted-terms %}

{% dl %}

{% dt %}
`clusterChecksRunner.affinity.podAffinity.preferredDuringSchedulingIgnoredDuringExecution`
{% /dt %}

{% dd %}
Required. A list of node selector terms. The terms are ORed.
{% /dd %}

{% dt %}
`site`
{% /dt %}

{% dd %}
Set the site of the Datadog intake for Agent data. Defaults to `datadoghq.com`.
{% /dd %}

{% dt %}
`api_key`
{% /dt %}

{% dd %}
Your Datadog API key. Required for the Agent to submit data.
{% /dd %}

{% /dl %}

### Mixed terms{% #mixed-terms %}

{% dl %}

{% dt %}
Environment
{% /dt %}

{% dd %}
A way to scope your first-class object. Examples: `prod`, `staging`, `dev`.
{% /dd %}

{% dt %}
`logs_enabled`
{% /dt %}

{% dd %}
Set to `true` to enable log collection by the Datadog Agent.
{% /dd %}

{% /dl %}