add ippool resource api

add ippool webhook and fix some bugs

Signed-off-by: Duan Jiong <djduanjiong@gmail.com>

config/crds/network.kubesphere.io_ippools.yaml

@@ -3,14 +3,20 @@
 apiVersion: apiextensions.k8s.io/v1beta1
 kind: CustomResourceDefinition
 metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: (devel)
   creationTimestamp: null
   name: ippools.network.kubesphere.io
 spec:
   group: network.kubesphere.io
   names:
     kind: IPPool
+    listKind: IPPoolList
     plural: ippools
+    singular: ippool
   scope: Cluster
+  subresources:
+    status: {}
   validation:
     openAPIV3Schema:
       properties:
@@ -36,8 +42,8 @@ spec:
               description: The pool CIDR.
               type: string
             disabled:
-              description: When disabled is true, IPAM will not assign addresses
-                from this pool.
+              description: When disabled is true, IPAM will not assign addresses from
+                this pool.
               type: boolean
             dns:
               description: DNS contains values interesting for DNS resolvers
@@ -59,11 +65,11 @@ spec:
               type: object
             gateway:
               type: string
-            namespace:
-              type: string
             rangeEnd:
+              description: The last ip, inclusive
               type: string
             rangeStart:
+              description: The first ip, inclusive
               type: string
             routes:
               items:
@@ -87,8 +93,6 @@ spec:
               - master
               - vlanId
               type: object
-            workspace:
-              type: string
           required:
           - cidr
           - type
@@ -96,7 +100,6 @@ spec:
         status:
           properties:
             allocations:
-              description: Allocations should equal to (Total - Reserved - Unallocated)
               type: integer
             capacity:
               type: integer
@@ -106,6 +109,19 @@ spec:
               type: boolean
             unallocated:
               type: integer
+            workspaces:
+              additionalProperties:
+                properties:
+                  allocations:
+                    type: integer
+                required:
+                - allocations
+                type: object
+              type: object
+          required:
+          - allocations
+          - capacity
+          - unallocated
           type: object
       type: object
   version: v1alpha1