steps:

- task: CmdLine@2
  displayName: 'Clean untagged docker images'
  inputs:
    script: |
      docker rm $(docker ps -a | grep Exited | awk '{print $1;}') || true
      docker container prune -f
      docker image prune -f
    workingDirectory: $(Build.BinariesDirectory)
  continueOnError: true
  condition: always()