Add default shortNames to certificates CRD

Defaults to [cert, certs] and is configurable with
`certificateCRDShortNames` parameter.

[Closes #311]

contrib/charts/cert-manager/README.md

@@ -58,6 +58,7 @@ The following tables lists the configurable parameters of the cert-manager chart
 | `image.pullPolicy` | Image pull policy | `IfNotPresent` |
 | `replicaCount`  | Number of cert-manager replicas  | `1` |
 | `createCustomResource` | Create CRD/TPR with this release | `true` |
+| `certificateResourceShortNames` | Custom aliases for Certificate CRD | `["cert", "certs"]` |
 | `extraArgs` | Optional flags for cert-manager | `[]` |
 | `rbac.create` | If `true`, create and use RBAC resources | `true`
 | `serviceAccount.create` | If `true`, create a new service account | `true`

contrib/charts/cert-manager/templates/certificate-crd.yaml

@@ -11,8 +11,12 @@ metadata:
 spec:
   group: certmanager.k8s.io
   version: v1alpha1
+  scope: Namespaced
   names:
     kind: Certificate
     plural: certificates
-  scope: Namespaced
+    {{- if .Values.certificateResourceShortNames }}
+    shortNames:
+{{ toYaml .Values.certificateResourceShortNames | indent 6 }}
+    {{- end -}}
 {{- end -}}

contrib/charts/cert-manager/values.yaml

@@ -10,6 +10,8 @@ image:
 
 createCustomResource: true
 
+certificateResourceShortNames: ["cert", "certs"]
+
 rbac:
   # Specifies whether RBAC resources should be created
   create: true

docs/deploy/rbac/certificate-crd.yaml

@@ -12,7 +12,11 @@ metadata:
 spec:
   group: certmanager.k8s.io
   version: v1alpha1
+  scope: Namespaced
   names:
     kind: Certificate
     plural: certificates
-  scope: Namespaced
+    shortNames:
+      - cert
+      - certs
+      

docs/deploy/without-rbac/certificate-crd.yaml

@@ -12,7 +12,11 @@ metadata:
 spec:
   group: certmanager.k8s.io
   version: v1alpha1
+  scope: Namespaced
   names:
     kind: Certificate
     plural: certificates
-  scope: Namespaced
+    shortNames:
+      - cert
+      - certs
+