Workflow examples #45

For testing/demonstration we should make a set of workflow examples demonstrating features of fridge,

• Normal usage
  • Using "custom" containers from harbor
  • Pulling containers from docker hub and quay through harbor proxies
  • Getting input (sensitive, immutable) data from minio
  • Getting user data (scripts) from minio
  • Using intermediate results from minio
  • Storing intermediate outputs in minio
• Security demonstration/smoke tests
  • Attempt to post/get data to/from the internet (e.g. curl)
  • Attempt to access external DNS
  • Attempt to access the k8s API (e.g. create a pod, modify resources)
  • Attempt to submit a workflow which doesn't meet the PSS (e.g. a container running as root, uid <= 1000, host network)