Cloud howto: running batch jobs with HTCondor/Cloud Scheduler

• Obtain images:
  • Easiest: Use cloud provided default images (installed as public images by sysadmins).
  • OpenStack image guide:
    • Download, see section 2
      • Pick an image from the install guide
      • wget
      • horizon image create
    • Create image with virt-install (& cobbler), see section 5.
  • Image format conversion:
    • qemu-img convert (raw, qcow2, vdi, vmdk, vpc)
  • Uploading a custom image:
    • horizon
    • glance command

• Customizing images:
  • Interractive instantiation:
    • horizon
    • nova boot
  • login as root and modify image
  • Snapshot

• Running batch jobs:
  • Prepare executable
  • Prepare JDL
  • Prepare data souces and repositories
  • Submit jobs
  • Monitoring jobs
  • Retrieving job output