Overview

These are the instructions created to install and configure Datadog on the KP JBoss EAP 7 cloud image and monitor a JVM via JMX.

Setup

Prerequisites

To install Datadog and integrate it with the JBoss EAP 7, ensure the following conditions have been met:

• KP’s JBoss EAP 7/RHEL7.5 bundle image (C2C or BTO) has been installed.
• JBoss EAP 7 has been configured and is functioning.
• NTPD has been installed and configured, and is running on each of the systems to be used.

Datadog Agent installation

Follow the Agent installations for CentOS/RedHat

JBoss EAP 7 edits

Add the following lines to the domain.xml file:

Be sure to add these lines within the profile being used:

For <subsystem xmlns="urn:jboss:domain:jmx:1.3">, add:

<remoting-connector use-management-endpoint="false"/>

For <subsystem xmlns="urn:jboss:domain:remoting:4.0">, add:

<connector name="remoting-connector" socket-binding="remoting" securityrealm="ApplicationRealm"/>

For <socket-binding-group name="full-ha-sockets" default-interface="public">, add:

<socket-binding name="remoting" port="4447"/>

Add an application user for the Application Realm:

JBoss_EAP_INSTALL_DIR/bin/add_user.sh

Note: Be sure to add to the Application Realm.

Start/Restart the jboss processes. Look for the following message in the server.log file:

2018-08-08 16:01:53,354 INFO [org.jboss.as.remoting] (MSC service thread 1-4) WFLYRMT0001: Listening on
xx.xx.xx.xx:4447

Assuming a domain configuration, be sure the JBoss_EAP_INSTALL_DIR/domain/configuration/application.keystore has read access by the Datadog ID (perms of 644 or higher)

###Datadog Edits

Edit the /etc/datadog-agent/datadog.yaml file to enable process collection:

process_config:
  enabled: "true"

Edit /etc/datadog-agent/conf.d/jmx.d/conf.yaml file to activate the jmx integration:

init_config:

  custom_jar_paths:
    - JBoss_EAP_INSTALL_LOCATION/bin/client/jboss-cli-client.jar

instances:
  - jmx_url: "service:jmx:remote://{FQDN or IP}:4447"
    user: xxxxxxxx (userid created via jboss add_user.sh)
    password: yyyyyyyy (created via jboss add_user.sh)
    java_bin_path: /etc/alternatives/java
    name: jboss_jmx_instance
    trust_store_path: /apps/jboss/jboss-eap-7.1/domain/configuration/application.keystore
    trust_store_password: password (use password found in domain.xml)
    conf:
      - include:
        domain: my_domain
        bean:

Then Start/restart the Datadog Agent.

Finally, run the Datadog Agent status command to ensure Datadog can connect to the JBoss JVM via JMX. You should get the following output:

========
JMXFetch
========
 Initialized checks
08/10/2018 4
 ==================
 jmx
 instance_name : jboss_jmx_instance
 message :
 metric_count : 13
 service_check_count : 0
 status : OK
 Failed checks
 =============
 no checks