I&#39;m having trouble deleting custom resource definition. 
I&#39;m trying to upgrade kubeless from v1.0.0-alpha.7 to **v1.0.0-alpha.8**.

I tried to remove all the created custom resources by doing 

```bash
$ kubectl delete -f kubeless-v1.0.0-alpha.7.yaml
deployment &quot;kubeless-controller-manager&quot; deleted
serviceaccount &quot;controller-acct&quot; deleted
clusterrole &quot;kubeless-controller-deployer&quot; deleted
clusterrolebinding &quot;kubeless-controller-deployer&quot; deleted
customresourcedefinition &quot;functions.kubeless.io&quot; deleted
customresourcedefinition &quot;httptriggers.kubeless.io&quot; deleted
customresourcedefinition &quot;cronjobtriggers.kubeless.io&quot; deleted
configmap &quot;kubeless-config&quot; deleted
```

But when I try,

```bash
$ kubectl get customresourcedefinition
NAME                    AGE
functions.kubeless.io   21d
```

And because of this when I next try to upgrade by doing, I see,

```bash
$ kubectl create -f kubeless-v1.0.0-alpha.8.yaml
Error from server (AlreadyExists): error when creating &quot;kubeless-v1.0.0-alpha.8.yaml&quot;: object is being deleted: customresourcedefinitions.apiextensions.k8s.io &quot;functions.kubeless.io&quot; already exists
```

I think because of this mismatch in the function definition , the hello world example is failing.

```bash
$ kubeless function deploy hellopy --runtime python2.7 --from-file test.py --handler test.hello
INFO[0000] Deploying function...
FATA[0000] Failed to deploy hellopy. Received:
the server does not allow this method on the requested resource (post functions.kubeless.io)
```

Finally, here is the output of,

```bash
$ kubectl describe customresourcedefinitions.apiextensions.k8s.io
Name:         functions.kubeless.io
Namespace:
Labels:       &lt;none&gt;
Annotations:  kubectl.kubernetes.io/last-applied-configuration={&quot;apiVersion&quot;:&quot;apiextensions.k8s.io/v1beta1&quot;,&quot;description&quot;:&quot;Kubernetes Native Serverless Framework&quot;,&quot;kind&quot;:&quot;CustomResourceDefinition&quot;,&quot;metadata&quot;:{&quot;anno...
API Version:  apiextensions.k8s.io/v1beta1
Kind:         CustomResourceDefinition
Metadata:
  Creation Timestamp:             2018-08-02T17:22:07Z
  Deletion Grace Period Seconds:  0
  Deletion Timestamp:             2018-08-24T17:15:39Z
  Finalizers:
    customresourcecleanup.apiextensions.k8s.io
  Generation:        1
  Resource Version:  99792247
  Self Link:         /apis/apiextensions.k8s.io/v1beta1/customresourcedefinitions/functions.kubeless.io
  UID:               951713a6-9678-11e8-bd68-0a34b6111990
Spec:
  Group:  kubeless.io
  Names:
    Kind:       Function
    List Kind:  FunctionList
    Plural:     functions
    Singular:   function
  Scope:        Namespaced
  Version:      v1beta1
Status:
  Accepted Names:
    Kind:       Function
    List Kind:  FunctionList
    Plural:     functions
    Singular:   function
  Conditions:
    Last Transition Time:  2018-08-02T17:22:07Z
    Message:               no conflicts found
    Reason:                NoConflicts
    Status:                True
    Type:                  NamesAccepted
    Last Transition Time:  2018-08-02T17:22:07Z
    Message:               the initial names have been accepted
    Reason:                InitialNamesAccepted
    Status:                True
    Type:                  Established
    Last Transition Time:  2018-08-23T13:29:45Z
    Message:               CustomResource deletion is in progress
    Reason:                InstanceDeletionInProgress
    Status:                True
    Type:                  Terminating
Events:                    &lt;none&gt;
```


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Not able to completely remove Kubernetes CustomResource