[ExternalNode] Add ExternalNode CRD (antrea-io#3639)

This change adds API definition for ExternalNode CRD
and generates the corresponding client and yaml files.

Signed-off-by: Mengdie Song <songm@vmware.com>

build/charts/antrea/crds/externalnode.yaml

@@ -0,0 +1,40 @@
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode

build/yamls/antrea-aks.yml

@@ -1267,6 +1267,48 @@ spec:
       - eip
 
 ---
+# Source: crds/externalnode.yaml
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode
+---
 # Source: crds/ippool.yaml
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition

build/yamls/antrea-crds.yml

@@ -1255,6 +1255,46 @@ spec:
 ---
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
 metadata:
   name: ippools.crd.antrea.io
   labels:

build/yamls/antrea-eks.yml

@@ -1267,6 +1267,48 @@ spec:
       - eip
 
 ---
+# Source: crds/externalnode.yaml
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode
+---
 # Source: crds/ippool.yaml
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition

build/yamls/antrea-gke.yml

@@ -1267,6 +1267,48 @@ spec:
       - eip
 
 ---
+# Source: crds/externalnode.yaml
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode
+---
 # Source: crds/ippool.yaml
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition

build/yamls/antrea-ipsec.yml

@@ -1267,6 +1267,48 @@ spec:
       - eip
 
 ---
+# Source: crds/externalnode.yaml
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode
+---
 # Source: crds/ippool.yaml
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition

build/yamls/antrea.yml

@@ -1267,6 +1267,48 @@ spec:
       - eip
 
 ---
+# Source: crds/externalnode.yaml
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  labels:
+    app: antrea
+  name: externalnodes.crd.antrea.io
+spec:
+  group: crd.antrea.io
+  versions:
+    - name: v1alpha1
+      schema:
+        openAPIV3Schema:
+          type: object
+          properties:
+            spec:
+              type: object
+              properties:
+                interfaces:
+                  type: array
+                  items:
+                    type: object
+                    properties:
+                      ips:
+                        type: array
+                        items:
+                          type: string
+                          oneOf:
+                            - format: ipv4
+                            - format: ipv6
+                      name:
+                        type: string
+      served: true
+      storage: true
+  scope: Namespaced
+  names:
+    kind: ExternalNode
+    plural: externalnodes
+    shortNames:
+      - en
+    singular: externalnode
+---
 # Source: crds/ippool.yaml
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition

pkg/apis/crd/v1alpha1/register.go

@@ -57,6 +57,8 @@ func addKnownTypes(scheme *runtime.Scheme) error {
 		&ClusterNetworkPolicyList{},
 		&Tier{},
 		&TierList{},
+		&ExternalNode{},
+		&ExternalNodeList{},
 	)
 
 	metav1.AddToGroupVersion(

pkg/apis/crd/v1alpha1/types.go

@@ -638,3 +638,38 @@ type IGMPProtocol struct {
 	IGMPType     *int32 `json:"igmpType,omitempty"`
 	GroupAddress string `json:"groupAddress,omitempty"`
 }
+
+// +genclient
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// ExternalNode refers to a virtual machine or a bare-metal server
+// which is not a K8s node, but has Antrea agent running on it.
+type ExternalNode struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec ExternalNodeSpec `json:"spec,omitempty"`
+}
+
+// ExternalNodeSpec defines the desired state for ExternalNode.
+type ExternalNodeSpec struct {
+	// Only one network interface is supported now.
+	// Other interfaces except interfaces[0] will be ignored if there are more than one interfaces.
+	Interfaces []NetworkInterface `json:"interfaces,omitempty"`
+}
+
+type NetworkInterface struct {
+	Name string `json:"name,omitempty"`
+
+	IPs []string `json:"ips,omitempty"`
+}
+
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+type ExternalNodeList struct {
+	metav1.TypeMeta `json:",inline"`
+	// +optional
+	metav1.ListMeta `json:"metadata,omitempty"`
+
+	Items []ExternalNode `json:"items,omitempty"`
+}