inspect-docker-image.yml

---
resources:
- name: image-to-inspect
  type: docker-image
  source:
    repository: pivotalcf/pivnet-resource  # UPDATE THIS with the targeted image repo name
    tag: "latest-final"      # UPDATE THIS with the desired tag of the image

jobs:
- name: Inspect-Image
  plan:
  - get: image-to-inspect
    params:
      rootfs: true
  - task: prepare-image-to-export
    config:
      platform: linux
      inputs:
        - name: image-to-inspect
      outputs:
        - name: export-directory
      image_resource:
        type: docker-image
        source:
          repository: pivotalservices/docker-concourse-cf-tools
      run:
        path: sh
        args:
        - -exc
        - |
          cd export-directory
          cp ../image-to-inspect/metadata.json .
          mkdir rootfs
          tar -xvf ../image-to-inspect/rootfs.tar -C ./rootfs/ --exclude="dev/*"
          cd rootfs
          # add .keep file to all empty directories
          find . -type d -empty -not -path "./.git/*" -exec touch {}/.keep \;
          cd ../..
          # WHAT TO DO FROM HERE
          # Option 1)
          # hijack into the container and then issue the
          # sequence of commands below to seed rootfs repo
          # with files prepared above from directory "export-directory":
          #   git clone <ROOT_FS_GIT_REPO_URL_GOES_HERE>
          #   cd <ROOT_FS_GIT_REPO_DIR>
          #   mv ../export-directory/metadata.json .
          #   mv ../export-directory/rootfs .
          #   git add .
          #   git config --global user.email "<YOUR_GIT_ACCOUNT_EMAIL_ADDRESS>"
          #   git config --global user.name "<YOUR_GIT_ACCOUNT_ID>"
          #   git commit -m "Add rootfs files"
          #   git push origin master
          # Option 2)
          # Create another task to this job that will consume the
          # "export-directory" output and automatically push it to
          # a repository (e.g. git)