Detail error message for wfr failure

[supereagle]

Is this a BUG REPORT or FEATURE REQUEST?:

/kind feature

What happened:

There is no detail error message for wfr failure.

$ kubectl -n cyclone-devops describe wfr release-tenant-admin-new-xv2p4
Name:         release-tenant-admin-new-xv2p4
Namespace:    cyclone-devops
Labels:       project.cyclone.dev/name=release
              workflow.cyclone.dev/name=release-tenant-admin-new
              workflowrun.cyclone.dev/notification-sent=true
Annotations:  cyclone.dev/alias: release-tenant-admin-new-xv2p4
              tagType: default
              workflowrun.cyclone.dev/trigger: yangsonglin
API Version:  cyclone.dev/v1alpha1
Kind:         WorkflowRun
Metadata:
  Creation Timestamp:  2019-06-05T02:17:21Z
  Generation:          1
  Owner References:
    API Version:     cyclone.dev/v1alpha1
    Kind:            Workflow
    Name:            release-tenant-admin-new
    UID:             91e26828-85a9-11e9-9465-38d54701228f
  Resource Version:  57412936
  Self Link:         /apis/cyclone.dev/v1alpha1/namespaces/cyclone-devops/workflowruns/release-tenant-admin-new-xv2p4
  UID:               0cf6e831-8738-11e9-8003-38d54701228f
Spec:
  ...
Status:
  Cleaned:  true
  Notifications:
    Devops:
      Message:  Status code: 201
      Result:   Succeeded
  Overall:
    Last Transition Time:  2019-06-05T02:27:08Z
    Phase:                 Failed
    Start Time:            2019-06-05T02:17:21Z
  Stages:
    Release - Tenant - Admin - New - Image - 0 - 2 - 0:
      Outputs:  <nil>
      Pod:
        Name:       release-tenant-admin-new-release-tenant-admin-new-image-0-2-0-m8wqf
        Namespace:  cyclone--devops
      Status:
        Last Transition Time:  2019-06-05T02:26:12Z
        Message:               Coordinator completed
        Phase:                 Succeeded
        Reason:                CoordinatorCompleted
        Start Time:            2019-06-05T02:25:16Z
    Release - Tenant - Admin - New - Image - 1 - 3 - 0:
      Outputs:  <nil>
      Pod:
        Name:       release-tenant-admin-new-release-tenant-admin-new-image-1-3-0-zxjt2
        Namespace:  cyclone--devops
      Status:
        Last Transition Time:  2019-06-05T02:27:08Z
        Phase:                 Failed
        Reason:                Error
        Start Time:            2019-06-05T02:26:12Z
    Release - Tenant - Admin - New - Make - 1 - 0:
      Outputs:  <nil>
      Pod:
        Name:       release-tenant-admin-new-release-tenant-admin-new-make-1-0-2672x
        Namespace:  cyclone--devops
      Status:
        Last Transition Time:  2019-06-05T02:25:16Z
        Phase:                 Succeeded
        Reason:                PodSucceed
        Start Time:            2019-06-05T02:22:22Z
    Release - Tenant - Admin - New - Unittest - 0 - 0:
      Outputs:  <nil>
      Pod:
        Name:       release-tenant-admin-new-release-tenant-admin-new-unittest-0-0-sdd89
        Namespace:  cyclone--devops
      Status:
        Last Transition Time:  2019-06-05T02:22:22Z
        Phase:                 Succeeded
        Reason:                PodSucceed
        Start Time:            2019-06-05T02:17:21Z
Events:
  Type    Reason           Age   From                   Message
  ----    ------           ----  ----                   -------
  Normal  StagePodCreated  22m   WorkflowRunController  Create pod for stage 'release-tenant-admin-new-unittest-0-0' succeeded
  Normal  StagePodCreated  17m   WorkflowRunController  Create pod for stage 'release-tenant-admin-new-make-1-0' succeeded
  Normal  StagePodCreated  14m   WorkflowRunController  Create pod for stage 'release-tenant-admin-new-image-0-2-0' succeeded
  Normal  StagePodCreated  13m   WorkflowRunController  Create pod for stage 'release-tenant-admin-new-image-1-3-0' succeeded
  Normal  GC               12m   WorkflowRunController  GC is performed succeed.

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

[supereagle]

/priority p1