message: prune dangling docker images
diff: @@ -17,6 +17,10 @@ jobs:
  HOSTCONFIG_LOC: /home/axom/export_hostconfig
  DOCKERFILE_PREFIX: ./scripts/docker/dockerfile_
  steps:
  + - name: Prune Dangling Docker Images
  + shell: bash
  + run: docker image prune
  + id: prune_docker
  - name: Extract branch name
  shell: bash
  run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
  