Setting Up Glowroot on LXC-SM, Liferay Cloud

Fabian's blog illustrates Glowroot setup in an on-premises environment here. Now, let's outline the steps for integrating Glowroot within Liferay's LXC-SM cloud infrastructure.

Key Components and Configuration Files:

1. LCP.json:

   • This pivotal file, residing in the 'liferay' directory, serves as the central configuration file for LXC-SM. It allows adjustments to memory allocation, CPU cores, and various other system-level settings within the Liferay Cloud Platform.

2. Config Folder:

   • Within the 'configs' directory, the subfolders like 'dev', 'uat', and 'prod' house environment-specific configurations. These configurations encompass deployment-related information tailored for each environment.

3. Glowroot Parameters:

   • -javaagent:/opt/liferay/glowroot/glowroot.jar: Loads Glowroot's instrumentation into the JVM.
   • -Dglowroot.data.dir=/opt/liferay/data/glowroot-data/data: Specifies the directory path for Glowroot's collected data.

Integration Steps:

1. Download and Unzip Glowroot

   • Download the Glowroot release from GitHub and unzip it under the respective environment folder (e.g., uat).

   • liferay/LCP.json and liferay/configs/dev/{deploy, osgi, patching, scripts/remove-log-files.sh}

2. Configure LCP.json (Liferay Configuration)

   • Add the following lines to the LCP.json file in the "liferay" folder under the respective environment (e.g., dev, uat, prd):

   •     "environments": {
            "uat": {
              "env": {
                 "LIFERAY_JVM_OPTS": "-javaagent:/opt/liferay/glowroot/glowroot.jar -Dglowroot.data.dir=/opt/liferay/data/glowroot-data/data"
                     }
                 }
             },
             "ports": [
                 {
                     "port": 4000,
                     "external": true
                 }
             ]
     

   • Make sure to adjust the paths according to your Glowroot installation.

3. Build and Deploy

   • Build and deploy the changes to the respective environment using your deployment process.

4. Verify Glowroot Setup

   • Access Liferay in your web browser.
   • In LXC, go to the "Network" tab.
   • Locate port 4000 and click on the link.
   • Change "https" to "http" in the URL to access the Glowroot interface.

Insights for LXC-SM Integration:

• Tailoring Glowroot integration steps specifically for Liferay's LXC-SM cloud environment ensures optimized monitoring capabilities, aligning with on-premises setup while being customized for the cloud infrastructure.