OneAgent configuration via command-line interface

OneAgent version 1.179

Use the oneagentctl command-line interface to perform some post-installation OneAgent configuration at the individual host level.

You'll find the oneagentctl tool in:

• Linux or AIX:
  /opt/dynatrace/oneagent/agent/tools
  You need root privileges.
• Docker-based deployment
  /opt/dynatrace/oneagent/agent/tools/
  Note that in case of volume-based deployment, this path will differ.
• Windows:
  C:\Program Files (x86)\dynatrace\oneagent\agent\tools
  You need administrator privileges. If you try to run oneagentctl in a non-admin Windows console, Windows will display a User Account Control pop-up and fail.

oneagentctl command-line interface provides you with get parameters to check the state or value of a setting, and set parameters to change a setting. Note that you can use a number of set parameters in a single command.

OneAgent restart

OneAgent version 1.189
When you use the set parameters, you need to restart OneAgent service to apply changes. Since version 1.189, you can use the --restart-service parameter with the command that triggers the restart automatically. In some cases you'll also need to restart monitored applications.

For example:

• Linux or AIX:
  ./oneagentctl --set-proxy=my-proxy.com --restart-service
• Windows:
  .\oneagentctl.exe --set-proxy=my-proxy.com --restart-service

You can also use it on its own, without other parameters.

Display help

Use the --help parameter to display all supported parameters.

• Linux or AIX:
  ./oneagentctl --help
• Windows:
  .\oneagentctl.exe --help

Display OneAgent version

Use the --version parameter to display the OneAgent version.

• Linux or AIX:
  ./oneagentctl --version
• Windows:
  .\oneagentctl.exe --version

OneAgent communication

Change OneAgent communication settings

OneAgent version 1.185

• Use the --set-server parameter to set a OneAgent communication endpoint. Use the IP address or name. Depending on your deployment, it can be a Dynatrace Server, Dynatrace Managed Cluster, or ActiveGate.
• Use the --set-tenant parameter to set an environment ID. By default, this is already set to the correct value. If you're selling Dynatrace-based services, use this option to set your customers' IDs from the pool of IDs you purchased from Dynatrace. Always use in combination with --set-tenant-token, which defines the tenant token for internal authentication.
• Use the --set-tenant-token parameter to set the tenant token, which is used to authenticate communication with the defined endpoint. Always use in combination with --set-tenant
• Use the --set-proxy parameter to set a proxy server.

Run the following command to adjust OneAgent connection settings:

• Linux or AIX:
  ./oneagentctl --set-server=https://my-server.com:443 --set-tenant=abc123456 --set-tenant-token=abcdefg123456790 --set-proxy=my-proxy.com
• Windows:
  .\oneagentctl.exe --set-server=https://my-server.com:443 --set-tenant=abc123456 --set-tenant-token=abcdefg123456790 --set-proxy=my-proxy.com

These parameters require restart of OneAgent, as well as restart of all the applications monitored with deep code modules. Add --restart-service to the command to restart OneAgent automatically (version 1.189+) or stop and start OneAgent process manually. For OS-specific instructions, see Linux, Windows, or AIX.

This command will immediately change the OS module connection endpoint, but the code modules won't be able to read the new setting until the next restart.

Show current communication endpoints

OneAgent version 1.185

Use the --get-server parameter to display the endpoints that OneAgent is to send the data to. These can be Dynatrace Server, Dynatrace Managed Cluster or ActiveGate.

• Linux or AIX:
  ./oneagentctl --get-server
• Windows:
  .\oneagentctl.exe --get-server

Show environment ID

OneAgent version 1.185

The Dynatrace environment ID you received with your activation email.

Use the --get-tenant parameter to display the environment ID:

• Linux or AIX:
  ./oneagentctl --get-tenant
• Windows:
  .\oneagentctl.exe --get-tenant

Show tenant token

OneAgent version 1.185

Use the --get-tenant-token parameter to display the currently defined token:

• Linux or AIX:
  ./oneagentctl --get-tenant-token
• Windows:
  .\oneagentctl.exe --get-tenant-token

Show current proxy

OneAgent version 1.185

Use the --get-proxy parameter to display the currently defined proxy OneAgent connects through:

• Linux or AIX:
  ./oneagentctl --get-proxy
• Windows:
  .\oneagentctl.exe --get-proxy

Clear proxy configuration

OneAgent version 1.185

Use the --set-proxy parameter set to an empty value to clear proxy configuration:

• Linux or AIX:
  ./oneagentctl --set-proxy=
• Windows:
  .\oneagentctl.exe --set-proxy= Restart OneAgent service to apply changes.

Check current port range

OneAgent version 1.185

OneAgent consists of different processes that communicate via a TCP port with a watchdog. At startup, OneAgent watchdog attempts to open the first available port between port 50000 and 50100. In some cases you may need this port for your own applications that are started after OneAgent.

Use the --get-watchdog-portrange parameter to check the current port range defined for the watchdog.

• Linux or AIX:
  ./oneagentctl --get-watchdog-portrange
• Windows:
  .\oneagentctl.exe --get-watchdog-portrange

Set a new port range

OneAgent version 1.185

Use the --set-watchdog-portrange=arg parameter to change the watchdog listening port range to <arg>. The <arg> must contain two port numbers separated by a colon (:). For example 50000:50100. The maximum supported port range is from 1024 to 65535. The port range must cover at least 4 ports. The port number starting the range must be lower.

• Linux or AIX:
  ./oneagentctl --set-watchdog-portrange=50000:50100
• Windows:
  .\oneagentctl.exe --set-watchdog-portrange=50000:50100

Log monitoring

Check if Log Monitoring is enabled

OneAgent version 1.185

Log Monitoring is not supported on AIX.

Use the --get-app-log-content-access parameter to check whether Log Monitoring is enabled:

• Linux ./oneagentctl --get-app-log-content-access
• Windows:
  .\oneagentctl.exe --get-app-log-content-access

Enable or disable Log Monitoring

OneAgent version 1.185

Set the --set-app-log-content-access parameter to true or false to disable or enable Log Monitoring:

• Linux: ./oneagentctl --set-app-log-content-access=true
• Windows:
  .\oneagentctl.exe --set-app-log-content-access=true Restart OneAgent service to apply changes.

Access to system logs for proactive support

OneAgent downloads specific system logs so that Dynatrace can diagnose issues that may be caused by conditions in your environment. Most often such issues are related to deep monitoring or auto-update installations.

Check if access to system logs is enabled

OneAgent version 1.185

Use the --get-system-logs-access-enabled parameter to check whether access to system logs is enabled:

• Linux or AIX:
  ./oneagentctl --get-system-logs-access-enabled
• Windows:
  .\oneagentctl.exe --get-system-logs-access-enabled

Enable or disable access to system logs

OneAgent version 1.185

Set the --set-system-logs-access-enabled parameter to true or false to disable or enable access to system logs:

• Linux or AIX:
  ./oneagentctl --set-system-logs-access-enabled=true
• Windows:
  .\oneagentctl.exe --set-system-logs-access-enabled=true Restart OneAgent service to apply changes.

Note that the --set-system-logs-access-enabled and --get-system-logs-access-enabled parameters refer to a self-diagnostics setting and are not related to Log Monitoring.

Host groups

OneAgent version 1.179

You can use the oneagentctl command-line interface to perform the following configuration actions for host groups.

Change host group assignment

Use the --set-host-group parameter to change the host group assignment.

To assign the host to MyHostGroup:

• Linux or AIX:
  ./oneagentctl --set-host-group=MyHostGroup
• Windows:
  .\oneagentctl.exe --set-host-group=MyHostGroup

Using --set-host-group requires restart of OneAgent, as well as restart of all the monitored services. Add [--restart-service](#oneagent-restart) to the command to restart OneAgent automatically (version 1.189+) or stop and start OneAgent process manually. For OS-specific instructions, see Linux, Windows, or AIX.

Clear host group assignment

Use the --set-host-group parameter with an empty value to clear the host group assignment:

• Linux or AIX:
  ./oneagentctl --set-host-group=
• Windows:
  .\oneagentctl.exe --set-host-group=

Display host group assignment

Use the --get-host-group parameter to display the current host group assignment:

• Linux or AIX:
  ./oneagentctl --get-host-group
• Windows:
  .\oneagentctl.exe --get-host-group

Host tags and metadata

Within dynamic or large environments, manual host tagging can be impractical. For dynamic deployments that include frequently changing host instances and names (for example, AWS or MS Azure), you can use dedicated oneagentctl parameters to apply custom tags, names, and metadata to your hosts.

The oneagentctl methods listed below allow only for editing the metadata added using oneagentctl itself or previously using the configuration files. Tags and metadata added using Dynatrace web UI, as well as retrieved from a monitored environment  (for example the AWS tags) are not editable with oneagentctl and won't be displayed using --get-host-tags and --get-host-properties parameters.

Custom host name

OneAgent version 1.189

Use the --set-host-name to override an automatically detected host name. The host name value must not contain the <, >, &, CR (carriage return), and LF (line feed) characters and the maximum length is 256 characters.

To change the host name:

• Linux or AIX:
  ./oneagentctl --set-host-name=myhostname
• Windows:
  .\oneagentctl.exe --set-host-name=myhostname

Using --set-host-name requires restart of OneAgent. Add --restart-service to the command to restart OneAgent automatically (version 1.189+) or stop and start OneAgent process manually. For OS-specific instructions, see Linux, Windows, or AIX.

For versions earlier than 1.189, use a host name configuration file.

To show the host name:

• Linux or AIX:
  ./oneagentctl --get-host-name
• Windows:
  .\oneagentctl.exe --get-host-name

Custom host metadata

OneAgent version 1.189

Once configured, custom metadata is displayed as a set of properties at the bottom of the Properties and tags section of the host overview page. The property values must not contain the = (except key-value delimiter) and whitespace characters. The maximum length is 256 characters including the key-value delimiter.

For versions earlier than 1.189, use a host metadata configuration file.

To add or change host properties, run the following command:

• Linux and AIX
  ./oneagentctl --set-host-property=AppName --set-host-property=Environment=Dev
• Windows
  .\oneagentctl.exe --set-host-property=AppName --set-host-property Environment=Dev

You can add or change more than one property in the same command. It is allowed to define properties with the same key but different values.

To remove host properties, run the following command:

• Linux and AIX
  ./oneagentctl --remove-host-property=AppName --remove-host-property=Environment=Dev
• Windows
  .\oneagentctl.exe --remove-host-property=AppName --remove-host-property=Environment=Dev

You can remove more than one property in the same command. If a property keys doesn't exist, non-zero exit code is returned, but all the existing properties passed in the command are still removed.

To show all properties configured for the host, run the following command:

• Linux and AIX
  ./oneagentctl --get-host-properties
• Windows
  .\oneagentctl.exe --get-host-properties

Custom host tags

Once configured, the tags are displayed at the top of the Properties and tags section of the host overview page. The property values must not contain the = (except key-value delimiter) and whitespace characters. The maximum length is 256 characters including the key-value delimiter.

For versions earlier than 1.189, use a host metadata configuration file.

To add or change host tags, run the following command:

• Linux and AIX
  ./oneagentctl --set-host-tag=TestHost --set-host-tag=role=fallback --set-host-tag=Gdansk
• Windows
  .\oneagentctl.exe --set-host-tag=TestHost --set-host-tag=role=fallback --set-host-tag=Gdansk

You can add or change more than one tag in the same command. It is allowed to define tags with the same key but different values.

To remove tags, run the following command:

• Linux and AIX
  ./oneagentctl --remove-host-tag-role=fallback --remove-host-tag=Gdansk
• Windows
  .\oneagentctl.exe --remove-host-tag=role=fallback --remove-host-tag=Gdansk

You can remove more than one tag in the same command. If a tag doesn't exist, non-zero exit code is returned, but all the existing tags passed in the command are still removed.

To show all tags configured for the host, run the following command:

• Linux and AIX
  ./oneagentctl --get-host-tags
• Windows
  .\oneagentctl.exe --get-host-tags

Infrastructure monitoring

Use the Infrastructure monitoring mode, in place of full-stack monitoring mode. With this approach, you receive infrastructure-only health data, with no application or user performance data. For details, see Infrastructure monitoring.

Check if Infrastructure monitoring mode is enabled

OneAgent version 1.187

Use the --get-infra-only parameter to check whether Infrastructure monitoring mode is enabled:

• Linux or AIX:
  ./oneagentctl --get-infra-only
• Windows:
  .\oneagentctl.exe --get-infra-only

Enable or disable Infrastructure monitoring mode

OneAgent version 1.187

Set the --set-infra-only parameter to true or false to enable or disable Infrastructure monitoring mode.

To enable Infrastructure monitoring mode:

• Linux or AIX:
  ./oneagentctl --set-infra-only=true
• Windows:
  .\oneagentctl.exe --set-infra-only=true

Changing the Infrastructure monitoring mode requirs restart of OneAgent, as well as restart of all the monitored services. Add --restart-service to the command to restart OneAgent automatically (version 1.189+) or stop and start OneAgent process manually. For OS-specific instructions, see Linux, Windows, or AIX.

Passing configuration parameters during installation

You can pass the --set-* parameters at installation time. The configuration parameters are applied right before OneAgent service starts and there's no need to restart it to apply your configuration.