template-clean-sonic-slave.yml

steps:
- script: |
    set -x
    containers=$(docker container ls -aq)
    [ -n "$containers" ] && docker container rm -f $containers
    docker images | grep "^<none>" | awk '{print$3}' | xargs -i docker rmi {}
    images=$(docker images 'sonic-slave-*' -a -q)
    [ -n "$images" ] && docker rmi -f $images
    exit 0
  displayName: 'Cleanup sonic slave'