Template cannot fill keys with parameters

[sosiouxme]

When filling in a template it is helpful to be able to vary the keys, e.g. for label names or annotation names. But you can't; only values appear to get substitutions from template parameters.

Version

oc v1.3.0-alpha.1-189-gde2a8bc-dirty
kubernetes v1.3.0-alpha.1-331-g0522e63

Steps To Reproduce

1. Create a template like the following:

     apiVersion: "v1"
     kind: "Template"
     parameters:
     -
       description: "Annotation name to enable dynamic provisioning for the PVC, if available"
       name: DYNAMIC
       value: dynamic-provisioning-disabled
     metadata:
       name: logging-pvc-template
       annotations:
         description: "Template for deploying logging support entities: persistentvolumeclaims."
         tags: "infrastructure"
       labels:
         logging-infra: support
     labels:
       logging-infra: support
       provider: openshift
       component: support
     objects:
     -
       apiVersion: v1
       kind: PersistentVolumeClaim
       metadata:
         name: foo
         annotations:
           "volume.alpha.kubernetes.io/${DYNAMIC}": "dynamic"
       spec:
         accessModes:
         - ReadWriteOnce
         resources:
           requests:
             storage: "1"
   

2. Invoke it e.g.:

   $ oc process -f /tmp/template.yaml -v DYNAMIC=foo | grep dynamic

Current Result

                "volume.alpha.kubernetes.io/${DYNAMIC}": "dynamic"

Expected Result

                "volume.alpha.kubernetes.io/foo": "dynamic"

[liggitt]

I know we're trying to limit feature additions to templates to ease transitioning to eventual upstream templating... @bparees, this seem likely or not?

[deads2k]

Opened #9324 so we can argue about whether we want it, not about whether or not it will be hard.

[bparees]

it seems reasonable to me.

[sosiouxme]

thanks!