How to know the Type of DevOps Agent in a Pipeline?

I have been trying to setup a CICD Pipeline for Business Central and would like to know in runtime what type of Azure DevOps Agent is being used to run the pipeline? (Azure Hosted vs On-Prem Hosted) as this will change the way the Build is done.

Please let me know if this is possible to achieve. So far I have implemented a logic where I check the name of the pipeline and if it starts with "self_hosted" then I know it is an on-prem installation and so.

You can use the value of the predefined variable "Agent.Name" to identify the agent type:

• If using Microsoft-hosted agents, the value always is "Hosted Agent".
• If using self-hosted agents, the value is the customized agent names when configuring the agents.

In certain situations, the self-hosted agents might have been configured with the same name (Hosted Agent) as the Microsoft-hosted agents. At this time, you also can use the value of the predefined variable "Agent.CloudId" to identify the agent type:

• If using Microsoft-hosted agents, the value is a GUID.
• If using self-hosted agents, the value is empty.

See below example as reference:

# azure-pipelines.yml

jobs:
- job: A
  strategy:
    matrix:
      WindowsPool:
        poolName: WindowsPool  # A pool of self-hosted Windows agents.
      LinuxPool:
        poolName: LinuxPool  # A pool of self-hosted Linux agents.
      MsHosted:
        poolName: 'Azure Pipelines'  # The pool of Microsoft-hosted agents.
  pool: $(poolName)
  steps:
  - checkout: none
  - pwsh: |
      Write-Host "Agent.Name = $(Agent.Name)"
      Write-Host "Agent.CloudId = $(Agent.CloudId)"
      Write-Host "Agent.MachineName = $(Agent.MachineName)"
      Write-Host "Agent.OS = $(Agent.OS)"
      Write-Host "Agent.OSArchitecture = $(Agent.OSArchitecture)"
    displayName: 'Show Agent Information'