Update README for Azure Monitor Linux Agent (#2167)

* Update README for Azure Monitor Linux Agent

Removed version information and some troubleshooting details from the README. Added a link to supported operating systems.

* Update README to remove obsolete details

Removed outdated information about the operation log and HandlerEnvironment.json.

* Update README to remove agent capabilities section

Removed bullet points about agent capabilities.

* Remove CentOS from supported distributions

Author: simathih

AzureMonitorAgent/README.md

@@ -1,15 +1,9 @@
 # AzureMonitorLinuxAgent Extension
 Allow the owner of the Azure Virtual Machines to install the Azure Monitor Linux Agent
 
-# The Latest Version is 1.6.2
-The extension is currently in Public Preview and is accessible to all public cloud regions in Azure. 
-
 You can read the User Guide below.
 * [Learn more: Azure Virtual Machine Extensions](https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-extensions-features/)
 
-Azure Monitor Linux Agent Extension can:
-* Install the agent and pull configs from MCS
-
 # User Guide
 
 ## 1. Deploying the Extension to a VM
@@ -35,19 +29,4 @@ To update the version of the esisting installation of Azure Monitor Linux Agent
 
 
 ## Supported Linux Distributions 
- Currently Manually tested only on -
-* CentOS Linux 6, and 7 (x64)
-* Red Hat Enterprise Linux Server 6 and 7 (x64)
-* Ubuntu 16.04 LTS, 18.04 LTS(x64)
-
-Will Add more distros once they are tested
-
-## Troubleshooting
-
-* The status of the extension is reported back to Azure so that user can
-see the status on Azure Portal
-* All the extension installation and config files are unzipped into - 
-`/var/lib/waagent/Microsoft.Azure.Monitor.AzureMonitorLinuxAgent-<version>/packages/`
-and the tail of the output is logged into the log directory specified
-in HandlerEnvironment.json and reported back to Azure
-* The operation log of the extension is `/var/log/azure/Microsoft.Azure.Monitor.AzureMonitorLinuxAgent-<version>/extension.log` file.
+* [Azure Monitor Agent Supported Operating Systems](https://learn.microsoft.com/en-us/azure/azure-monitor/agents/azure-monitor-agent-supported-operating-systems#linux-operating-systems)

AzureMonitorAgent/ama_tst/modules/install/supported_distros.py

@@ -1,5 +1,4 @@
 supported_dists_x86_64 = {'redhat' : ['7', '8', '9', '10'], # Rhel
-                       'centos' : ['7', '8'], # CentOS
                        'oracle' : ['7', '8', '9'], # Oracle
                        'ol' : ['7', '8', '9'], # Oracle Linux
                        'debian' : ['9', '10', '11', '12', '13'], # Debian
@@ -16,11 +15,10 @@
 supported_dists_aarch64 = {'redhat' : ['8', '9', '10'], # Rhel
                     'ubuntu' : ['18.04', '20.04', '22.04', '24.04'], # Ubuntu
                     'alma' : ['8'], # Alma
-                    'centos' : ['7'], # CentOS
                     'mariner' : ['2'], # Mariner 2
                     'azurelinux' : ['3'], # Azure Linux / Mariner 3
                     'sles' : ['15', '16'], # SLES
                     'debian' : ['11', '12', '13'], # Debian
                     'rocky linux' : ['8', '9'], # Rocky
                     'rocky' : ['8', '9'] # Rocky
-}
+}