Bug 1505796
| Summary: | `oc get -o=custom-columns` should display <no value> or empty for objects lacking the field | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Xingxing Xia <xxia> |
| Component: | oc | Assignee: | Juan Vallejo <jvallejo> |
| Status: | CLOSED ERRATA | QA Contact: | Xingxing Xia <xxia> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3.7.0 | CC: | aos-bugs, ffranz, jokerman, jvallejo, mmccomas, wmeng |
| Target Milestone: | --- | ||
| Target Release: | 3.8.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-03-28 14:08:09 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Verified in oc v3.7.0-0.179.0, now <none> is placed for lacked/unknown field: $ oc get clusterserviceclass -o=custom-columns="name:.metadata.name,display name:spec.externalMetadata.displayName,provider:spec.externalMetadata.providerDisplayName" name display name provider 997d1b7f-b9fa-11e7-b315-fa163eef4e51 Jenkins (Ephemeral) Red Hat, Inc. 998040aa-b9fa-11e7-b315-fa163eef4e51 Pipeline Build Example <none> 9984a670-b9fa-11e7-b315-fa163eef4e51 Django + PostgreSQL (Persistent) Red Hat, Inc. 9987a6fb-b9fa-11e7-b315-fa163eef4e51 Node.js + MongoDB (Persistent) Red Hat, Inc. 998a3860-b9fa-11e7-b315-fa163eef4e51 MongoDB (Persistent) Red Hat, Inc. 998e297a-b9fa-11e7-b315-fa163eef4e51 MariaDB (Persistent) Red Hat, Inc. 99b26cba-b9fa-11e7-b315-fa163eef4e51 MySQL (Persistent) Red Hat, Inc. 99f00fc4-b9fa-11e7-b315-fa163eef4e51 PostgreSQL (Persistent) Red Hat, Inc. 99f35132-b9fa-11e7-b315-fa163eef4e51 CakePHP + MySQL (Persistent) Red Hat, Inc. 9a6a4b34-b9fa-11e7-b315-fa163eef4e51 Dancer + MySQL (Persistent) Red Hat, Inc. 9a77eeb8-b9fa-11e7-b315-fa163eef4e51 Rails + PostgreSQL (Persistent) Red Hat, Inc. 9b04d46a-b9fa-11e7-b315-fa163eef4e51 Jenkins (Persistent) Red Hat, Inc. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2018:0489 |
Description of problem: When some objects lack the field, `oc get -o=custom-columns` exits with error and has no any object output For better UX, it should still work and is suggested to display <no value> or empty for the lacked field in those objects Version-Release number of selected component (if applicable): oc v3.7.0-0.175.0 How reproducible: Always Steps to Reproduce: Note, below just use clusterserviceclass as example. In fact, can use any resource type to reproduce the issue, as long as some objects have but some others lack the field 1. Check objects with concerned columns 1) 2 columns $ oc get clusterserviceclass -o=custom-columns="name:.metadata.name,display name:spec.externalMetadata.displayName" 2) Add a third concerned column, which is lacked in some object $ oc get clusterserviceclass -o=custom-columns="name:.metadata.name,display name:spec.externalMetadata.displayName,provider:spec.externalMetadata.providerDisplayName" 3) As comparison, run above "2)" command only upon one object that does have all concerned columns $ oc get clusterserviceclass ba4d24f1-b7c2-11e7-8556-fa163e25cbb7 -o=custom-columns="name:.metadata.name,display name:spec.externalMetadata.displayName,provider:spec.externalMetadata.providerDisplayName" 2. As comparison with above "2)", run another approach for columns $ oc get clusterserviceclass --template="{{range .items}}{{.metadata.name}} {{.spec.externalMetadata.displayName}} {{.spec.externalMetadata.providerDisplayName}} {{end}}" # note, before {{end}}, has a newline Actual results: 1. 1) It succeeds and outputs: name display name ba4d24f1-b7c2-11e7-8556-fa163e25cbb7 CakePHP + MySQL (Persistent) ba6393fe-b7c2-11e7-8556-fa163e25cbb7 Pipeline Build Example ba655233-b7c2-11e7-8556-fa163e25cbb7 MongoDB (Persistent) ...snipped other objects... 2) When some object (here, "Pipeline Build Example") lacks the field, it does not output any object, it fails and outputs: error: providerDisplayName is not found 3) It succeeds 2. Instead of fails, it succeeds and has placeholder "<no value>": ba4d24f1-b7c2-11e7-8556-fa163e25cbb7 CakePHP + MySQL (Persistent) Red Hat, Inc. ba6393fe-b7c2-11e7-8556-fa163e25cbb7 Pipeline Build Example <no value> ba655233-b7c2-11e7-8556-fa163e25cbb7 MongoDB (Persistent) Red Hat, Inc. ...snipped other objects... Expected results: 1.2: for better UX, it should be like step 2, i.e. still work when hitting objects lacking the field. It can display <no value> or empty for these objects lacked field Additional info: