The Agent is lightweight software installed on your hosts. It reports metrics and events from your host to Datadog via integrations, DogStatsD, or the API. With additional setup, the Agent can report live processes, logs, and traces.
If you haven’t already, create a Datadog account.
The Agent can be installed on many different platforms either directly on the host or as a containerized version. Most systems have a one-line install option.
Choose your platform to see installation instructions:
The Agent’s main configuration file is datadog.yaml. The only required parameter is your Datadog API key which is used to associate your Agent’s data with your organization. See the sample config_template.yaml for all available configuration options.
For the container Agent, datadog.yaml configuration options are passed in with environment variables. For example, the Datadog API key environment variable is DD_API_KEY.
The Agent’s main configuration file is datadog.yaml. The required parameters are your Datadog API key which is used to associate your Agent’s data with your organization and the Datadog Site (datadoghq.eu). See the sample config_template.yaml for all available configuration options.
For the container Agent, datadog.yaml configuration options are passed in with environment variables, for example:
DD_API_KEY for the Datadog API keyDD_SITE for the Datadog siteRun the Agent’s status command to verify installation.
Refer to the Agent Commands page to Start, Stop or Restart your Agent.
Depending on your platform, the Agent has several core checks enabled by default that collect metrics.
| Check | Metrics | Platforms |
|---|---|---|
| CPU | System | All |
| Disk | Disk | All |
| Docker | Docker | Docker |
| File Handle | System | All except Mac |
| IO | System | All |
| Load | System | All except Windows |
| Memory | System | All |
| Network | Network | All |
| NTP | NTP | All |
| Uptime | System | All |
| Winproc | System | Windows |
To collect metrics from other technologies, see the Integrations page.
The Agent sends events to Datadog when an Agent is started or restarted.
datadog.agent.up:
Returns CRITICAL if the Agent is unable to connect to Datadog, otherwise returns OK.
datadog.agent.check_status:
Returns CRITICAL if an Agent check is unable to send metrics to Datadog, otherwise returns OK.
For help troubleshooting the Agent:
Additional helpful documentation, links, and articles:
After the Agent is installed:
