integrate external network with peering

apis/networking/v1alpha1/externalnetwork_types.go

@@ -0,0 +1,74 @@
+// Copyright 2019-2023 The Liqo Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package v1alpha1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+// NOTE: json tags are required.  Any new fields you add must have json tags for the fields to be serialized.
+
+// ExternalNetworkResource the name of the external network resources.
+var ExternalNetworkResource = "externalnetworks"
+
+// ExternalNetworkKind is the kind name used to register the ExternalNetwork CRD.
+var ExternalNetworkKind = "ExternalNetwork"
+
+// ExternalNetworkGroupResource is group resource used to register these objects.
+var ExternalNetworkGroupResource = schema.GroupResource{Group: GroupVersion.Group, Resource: ExternalNetworkResource}
+
+// ExternalNetworkGroupVersionResource is groupResourceVersion used to register these objects.
+var ExternalNetworkGroupVersionResource = GroupVersion.WithResource(ExternalNetworkResource)
+
+// ExternalNetworkSpec defines the desired state of ExternalNetworks.
+type ExternalNetworkSpec struct {
+	// Configuration contains the configuration for the originating cluster.
+	Configuration *ConfigurationSpec `json:"configuration,omitempty"`
+}
+
+// ExternalNetworkStatus defines the observed state of ExternalNetworks.
+type ExternalNetworkStatus struct {
+	// Configuration contains the configuration for the target cluster.
+	Configuration *ConfigurationSpec `json:"configuration,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+// +kubebuilder:resource:categories=liqo
+// +kubebuilder:subresource:status
+
+// ExternalNetwork is used to share information about the network configuration of a
+// peer of clusters. It is replicated by the CRD replicator.
+type ExternalNetwork struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   ExternalNetworkSpec   `json:"spec,omitempty"`
+	Status ExternalNetworkStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// ExternalNetworkList contains a list of ExternalNetworks.
+type ExternalNetworkList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []ExternalNetwork `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&ExternalNetwork{}, &ExternalNetworkList{})
+}

deployments/liqo/charts/liqo-crds/crds/networking.liqo.io_externalnetworks.yaml

@@ -0,0 +1,125 @@
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.13.0
+  name: externalnetworks.networking.liqo.io
+spec:
+  group: networking.liqo.io
+  names:
+    categories:
+    - liqo
+    kind: ExternalNetwork
+    listKind: ExternalNetworkList
+    plural: externalnetworks
+    singular: externalnetwork
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: ExternalNetwork is used to share information about the network
+          configuration of a peer of clusters. It is replicated by the CRD replicator.
+        properties:
+          apiVersion:
+            description: 'APIVersion defines the versioned schema of this representation
+              of an object. Servers should convert recognized schemas to the latest
+              internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources'
+            type: string
+          kind:
+            description: 'Kind is a string value representing the REST resource this
+              object represents. Servers may infer this from the endpoint the client
+              submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+            type: string
+          metadata:
+            type: object
+          spec:
+            description: ExternalNetworkSpec defines the desired state of ExternalNetworks.
+            properties:
+              configuration:
+                description: Configuration contains the configuration for the originating
+                  cluster.
+                properties:
+                  local:
+                    description: Local network configuration (the cluster where the
+                      resource is created).
+                    properties:
+                      cidr:
+                        description: CIDR of the cluster.
+                        properties:
+                          external:
+                            description: External CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                          pod:
+                            description: Pod CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                        type: object
+                    type: object
+                  remote:
+                    description: Remote network configuration (the other cluster).
+                    properties:
+                      cidr:
+                        description: CIDR of the cluster.
+                        properties:
+                          external:
+                            description: External CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                          pod:
+                            description: Pod CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                        type: object
+                    type: object
+                type: object
+            type: object
+          status:
+            description: ExternalNetworkStatus defines the observed state of ExternalNetworks.
+            properties:
+              configuration:
+                description: Configuration contains the configuration for the target
+                  cluster.
+                properties:
+                  local:
+                    description: Local network configuration (the cluster where the
+                      resource is created).
+                    properties:
+                      cidr:
+                        description: CIDR of the cluster.
+                        properties:
+                          external:
+                            description: External CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                          pod:
+                            description: Pod CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                        type: object
+                    type: object
+                  remote:
+                    description: Remote network configuration (the other cluster).
+                    properties:
+                      cidr:
+                        description: CIDR of the cluster.
+                        properties:
+                          external:
+                            description: External CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                          pod:
+                            description: Pod CIDR of the cluster.
+                            pattern: ^(([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]{0,1}[0-9]{0,2}|2[0-4][0-9]|25[0-5])\/([0-9]|[1-2][0-9]|3[0-2])$
+                            type: string
+                        type: object
+                    type: object
+                type: object
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}

internal/crdReplicator/resources/resources.go

@@ -20,6 +20,7 @@ import (
 
 	discoveryv1alpha1 "github.com/liqotech/liqo/apis/discovery/v1alpha1"
 	netv1alpha1 "github.com/liqotech/liqo/apis/net/v1alpha1"
+	networkingv1alpha1 "github.com/liqotech/liqo/apis/networking/v1alpha1"
 	sharingv1alpha1 "github.com/liqotech/liqo/apis/sharing/v1alpha1"
 	vkv1alpha1 "github.com/liqotech/liqo/apis/virtualkubelet/v1alpha1"
 	"github.com/liqotech/liqo/pkg/consts"
@@ -58,5 +59,10 @@ func GetResourcesToReplicate() []Resource {
 			PeeringPhase:         consts.PeeringPhaseOutgoing,
 			Ownership:            consts.OwnershipShared,
 		},
+		{
+			GroupVersionResource: networkingv1alpha1.ExternalNetworkGroupVersionResource,
+			PeeringPhase:         consts.PeeringPhaseEstablished,
+			Ownership:            consts.OwnershipShared,
+		},
 	}
 }