How to use the command 'qm guest exec-status' (with examples)

The command ‘qm guest exec-status’ is used to print the status of a specific PID started by the guest-agent on QEMU/KVM Virtual Machine Manager. It provides information about the status of a process running inside a virtual machine.

Use case 1: Print the status of a specific PID

Code:

qm guest exec-status vm_id pid

Motivation: This use case is useful when you want to check the status of a specific process running inside a virtual machine. It helps in monitoring the execution and health of the process.

Explanation:

• qm: This is the command-line interface for managing virtual machines on QEMU/KVM Virtual Machine Manager.
• guest: This option is used to interact with the guest-agent running inside the virtual machine.
• exec-status: This subcommand is used to print the status of a process started by the guest-agent.
• vm_id: This is the ID of the virtual machine for which you want to check the process status.
• pid: This is the PID (Process ID) of the process for which you want to get the status.

Example output:

qm guest exec-status 100 1234
---
exitstatus: 0
pid: 1234
running: true
vmid: 100

In the example output, the process with PID 1234 is running inside the virtual machine with ID 100 and has an exit status of 0.

Conclusion:

The ‘qm guest exec-status’ command is a powerful tool for monitoring the status of processes running inside virtual machines. It provides essential information about the execution and health of the processes, allowing for effective management and troubleshooting.