You can install or uninstall an agent on a end point VM using a script.

Prerequisites

  • The end point VM must be available in vRealize Operations.
  • Complete all the prerequisites. For more information, see Prerequisites.
  • The unzip package must be available on the end point VM.
  • The user must have access permissions to the download folder.
  • The guest IP must be properly configured and is unique across vCenter Servers. If more than one end point VM with the same IP across vCenter Servers is monitored, the script cannot resolve and subscribe to application monitoring.
  • The cloud account must be configured for the vCenter Server to which the end point VM belongs.
  • Port 443 in vRealize Operations must be accessible to the end point VM.
  • The vRealize Operations user must have the following permissions:
    • Administration > REST-APIs > All other Read, Write APIs
    • Administration > REST-APIs > Read access to APIs
    • Environment > Applications > Manage Telegraf Agent
    • Environment > Actions > Bootstrap virtual machines
    • Environment > Actions > Download bootstrap
    Note: To check permissions, navigate to Administration > Access Control > Roles, select the role to which the user is assigned. You can view the permissions on the right side at the end of the page.
  • Only IPv4 is supported at present.
  • VMTools version >=10.2.

Procedure

  1. Log in to the end point VM on which you want to install/uninstall the agent and download the sample script from cloud proxy from the following location: https://<CloudProxy>/downloads/salt/download.sh.
    Run one of the following commands: 
    wget --no-check-certificate https://<CloudProxy>/downloads/salt/download.sh
curl -k “https://<CloudProxy>/downloads/salt/download.sh” --output download.sh
    Note: Use the relevant cloud proxy IP address/FQDN for <CloudProxy> in the preceding commands and location specified.
  2. Make the script executable by running the following command: 
    chmod +x download.sh
  3. To execute the script and install/uninstall the agent, run the following command: 
    ./download.sh  -o <operation> -v <vrops_ip_or_fqdn> -u <vrops_user> -p <vrops_password> [-d download_tmp_dir] [-c cloud_proxy_ip]

Description of arguments:
operation - Bootstrap operation. values: install, uninstall.
vrops_ip_or_fqdn - IP/FQDN of vRealize Operations. This can be the address of any vRealize Operations node or VIP of vRealize Operations.
vrops_user - vRealize Operations user. The user should have enough permissions.
vrops_password - Password of vRealize Operations.
download_tmp_dir - Temporary directory to download agent related bits. It is an optional parameter. Default value: current directory.
cloud_proxy_ip - Cloud proxy IP on which the AppOS Adapter instance will be created. It is an optional parameter. Default value: Cloud proxy where the vCenter adapter resides.

    To verify the bootstrap status, view the uaf-bootstrap-results file. If the installation fails, look for error messages in uaf_bootstrap.log.

    If the script is successful, the agent status will be updated in the Manage Telegraf Agents tab after one collection cycle that takes 5–10 minutes.

    Note: When you use an automation script, concurrent agent installation with a batch size of 20 is supported.