Deleting Yandex Unified Agent

1. Stop Unified Agent:

   sudo service unified-agent stop
   

2. View the deb package name:

   sudo dpkg -S /etc/yandex/unified_agent
   

3. Delete the deb package:

   sudo apt remove yandex-unified-agent
   

1. View the Unified Agent process number and the location of the unified_agent file and *.yml configuration file:

   ps aux | grep unified_agent
   

   Result:

   root 1068 0.0 2.1 2314804 43540 ? Ssl 08:33 0:03 /bin/unified_agent --config /etc/yc/unified_agent/config.yml
   yc-sa-a+ 4124 0.0 0.1 6612 2272 pts/2 S+ 12:34 0:00 grep --color=auto unified_agent
   

   In this example, the process number is 1068.

2. Stop the Unified Agent process:

    sudo kill <process_number>
   

3. Delete the binary file:

   sudo rm -f /usr/bin/unified_agent
   

4. Delete the configuration file:

   sudo rm -f /etc/yc/unified_agent/config.yml
   

If Unified Agent was installed this way, the unified_agent binary file and the config.yml default configuration file are copied to the VM. Therefore, Unified Agent is deleted the same way as the binary file.

Information about the installed Unified Agent is stored in the VM metadata. When deleting Unified Agent, metadata is not updated automatically; however, you can do it manually.

To delete information about Unified Agent from metadata:

1. Get an IAM token for your VM's service account.

2. Make sure you have installed cURL.

3. Send an API request to update metadata:

   curl \
     --request PATCH \
     --header "Authorization: Bearer <IAM_token>" \
     --data '{"updateMask": "metadata", "metadata": {"install-unified-agent": "0" },}' \
     https://compute.api.cloud.yandex.net/compute/v1/instances/<VM_ID>
   

4. View metadata:

   1. In the management console, go to Compute Cloud.

   2. In the left-hand panel, select Virtual machines.

   3. Select the VM and navigate to the Overview tab.

   4. Make sure the Agent for delivering metrics parameter is now set to no under Monitoring.