DevOps
Azure DevOps — Agent Pool
If you are planning to use Azure DevOps, you should have understanding of Agent Pool. To build or run your code in a build pipelines you need Agents in Azure DevOps service. When you run a job in a build, Agent in Agent Pool support the process.
Go to project settings and click on Agent Pools. By default there are 2 pools exist.
Azure Pipelines hosted pool,(Each time you run a pipeline, you get a fresh virtual machine.)
You can manage these pools in Azure DevOps Yaml file as well
jobs:
- job: Linux
pool:
vmImage: 'ubuntu-18.04'
steps:
- script: echo hello!
https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/hosted?view=azure-devops
Note:
In Azure Pipelines, you can run parallel jobs on Microsoft-hosted infrastructure or on your own (self-hosted) infrastructure.
Default Pool — Use it to register self hosted agents that you can setup. You have to manage on your own.