Get labels applied to PR. Used if we want to do custom actions in the build based on those labels. We should set them as environment variables or whatever action you want

azure-devops-pr-labels.yml

pool:
  vmImage: 'ubuntu-latest'

jobs:
- job: Job1
  steps:
  - script: |
      LABELS_JSON=$(curl -H "Authorization: Bearer ${SYSTEM_ACCESSTOKEN}" "$(System.TeamFoundationCollectionUri)$(System.TeamProject)/_apis/git/repositories/$(Build.Repository.Name)/pullRequests/$(System.PullRequest.PullRequestId)/labels?api-version=5.1-preview.1")
      echo $LABELS_JSON
    env:
      SYSTEM_ACCESSTOKEN: $(System.AccessToken)
    displayName: Get PR Labels
    condition: and(succeeded(), eq(variables['Build.Reason'], 'PullRequest'))
  - pwsh: |
      $labels = Invoke-RestMethod -Uri "$(System.TeamFoundationCollectionUri)$(System.TeamProject)/_apis/git/repositories/$(Build.Repository.Name)/pullRequests/$(System.PullRequest.PullRequestId)/labels?api-version=5.1-preview.1" `
        -Authentication Bearer `
        -Token (ConvertTo-SecureString -String $(System.AccessToken) -asPlainText -Force)
      $labels.value | ForEach-Object {
        echo "##vso[task.setvariable variable=$($_.name);isOutput=true]true"
        echo $_.name
      }
    displayName: Get PR Labels pwsh
    name: PrLabels
    condition: and(succeeded(), eq(variables['Build.Reason'], 'PullRequest'))

- job: Job2
  dependsOn: Job1
  condition: eq(dependencies.Job1.outputs['PrLabels.DeployPR'], 'true')
  steps:
  - script: Activated Deployment script