Handle the broker in the operator

Fixes: #203
Signed-off-by: Stephen Kitt <skitt@redhat.com>

.yamllint.yml

@@ -13,10 +13,12 @@ ignore: |
   /deploy/submariner/crds/submariner.io_gateways.yaml
   /deploy/submariner/crds/submariner.io_endpoints.yaml
   /deploy/submariner/crds/submariner.io_clusters.yaml
+  /deploy/crds/submariner.io_brokers.yaml
   /deploy/crds/submariner.io_submariners.yaml
   /deploy/crds/submariner.io_servicediscoveries.yaml
   /deploy/mcsapi/crds/multicluster.x_k8s.io_serviceexports.yaml
   /deploy/mcsapi/crds/multicluster.x_k8s.io_serviceimports.yaml
+  /config/crd/bases/submariner.io_brokers.yaml
   /config/crd/bases/submariner.io_submariners.yaml
   /config/crd/bases/submariner.io_servicediscoveries.yaml
   /config/manager/kustomization.yaml

apis/submariner/v1alpha1/submariner_types.go

@@ -124,8 +124,54 @@ type SubmarinerList struct {
 	Items           []Submariner `json:"items"`
 }
 
+// BrokerSpec defines the desired state of Broker
+// +k8s:openapi-gen=true
+type BrokerSpec struct {
+	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+
+	Components                  []string `json:"components,omitempty"`
+	DefaultCustomDomains        []string `json:"defaultCustomDomains,omitempty"`
+	GlobalnetCidrRange          string   `json:"globalnetCidrRange,omitempty"`
+	DefaultGlobalnetClusterSize uint     `json:"defaultGlobalnetClusterSize"`
+	GlobalnetEnabled            bool     `json:"globalnetEnabled"`
+}
+
+// BrokerStatus defines the observed state of Broker
+// +k8s:openapi-gen=true
+type BrokerStatus struct {
+	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+}
+
+// +kubebuilder:object:root=true
+
+// Broker is the Schema for the brokers API
+// +k8s:openapi-gen=true
+// +kubebuilder:subresource:status
+// +kubebuilder:resource:path=brokers,scope=Namespaced
+// +genclient
+// +operator-sdk:csv:customresourcedefinitions:displayName="Broker"
+type Broker struct { //nolint:maligned // we want to keep the traditional order
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   BrokerSpec   `json:"spec,omitempty"`
+	Status BrokerStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// BrokerList contains a list of Broker
+type BrokerList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []Broker `json:"items"`
+}
+
 func init() {
 	SchemeBuilder.Register(&Submariner{}, &SubmarinerList{})
+	SchemeBuilder.Register(&Broker{}, &BrokerList{})
 }
 
 func (submariner *Submariner) SetDefaults() bool {

config/crd/bases/submariner.io_brokers.yaml

@@ -0,0 +1,70 @@
+
+---
+apiVersion: apiextensions.k8s.io/v1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    controller-gen.kubebuilder.io/version: v0.3.0
+  creationTimestamp: null
+  name: brokers.submariner.io
+spec:
+  group: submariner.io
+  names:
+    kind: Broker
+    listKind: BrokerList
+    plural: brokers
+    singular: broker
+  scope: Namespaced
+  versions:
+  - name: v1alpha1
+    schema:
+      openAPIV3Schema:
+        description: Broker is the Schema for the brokers API
+        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: BrokerSpec defines the desired state of Broker
+            properties:
+              components:
+                items:
+                  type: string
+                type: array
+              defaultCustomDomains:
+                items:
+                  type: string
+                type: array
+              defaultGlobalnetClusterSize:
+                type: integer
+              globalnetCidrRange:
+                type: string
+              globalnetEnabled:
+                type: boolean
+            required:
+            - defaultGlobalnetClusterSize
+            - globalnetEnabled
+            type: object
+          status:
+            description: BrokerStatus defines the observed state of Broker
+            type: object
+        type: object
+    served: true
+    storage: true
+    subresources:
+      status: {}
+status:
+  acceptedNames:
+    kind: ""
+    plural: ""
+  conditions: []
+  storedVersions: []

config/crd/kustomization.yaml

@@ -5,19 +5,22 @@
 resources:
 #  - bases/submariner.io_servicediscoveries.yaml
   - bases/submariner.io_submariners.yaml
+#  - bases/submariner.io_brokers.yaml
 # +kubebuilder:scaffold:crdkustomizeresource
 
 patchesStrategicMerge:
 # [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix.
 # patches here are for enabling the conversion webhook for each CRD
 #- patches/webhook_in_submariners.yaml
 #- patches/webhook_in_servicediscoveries.yaml
+#- patches/webhook_in_brokers.yaml
 # +kubebuilder:scaffold:crdkustomizewebhookpatch
 
 # [CERTMANAGER] To enable webhook, uncomment all the sections with [CERTMANAGER] prefix.
 # patches here are for enabling the CA injection for each CRD
 #- patches/cainjection_in_submariners.yaml
 #- patches/cainjection_in_servicediscoveries.yaml
+#- patches/cainjection_in_brokers.yaml
 # +kubebuilder:scaffold:crdkustomizecainjectionpatch
 
 # the following config is for teaching kustomize how to do kustomization for CRDs.

config/crd/patches/cainjection_in_brokers.yaml

@@ -0,0 +1,8 @@
+# The following patch adds a directive for certmanager to inject CA into the CRD
+# CRD conversion requires k8s 1.13 or later.
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  annotations:
+    cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME)
+  name: brokers.submariner.io

config/crd/patches/webhook_in_brokers.yaml

@@ -0,0 +1,17 @@
+# The following patch enables conversion webhook for CRD
+# CRD conversion requires k8s 1.13 or later.
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: brokers.submariner.io
+spec:
+  conversion:
+    strategy: Webhook
+    webhookClientConfig:
+      # this is "\n" used as a placeholder, otherwise it will be rejected by the apiserver for being blank,
+      # but we're going to set it later using the cert-manager (or potentially a patch if not using cert-manager)
+      caBundle: Cg==
+      service:
+        namespace: system
+        name: webhook-service
+        path: /convert

config/samples/kustomization.yaml

@@ -3,6 +3,7 @@
 resources:
   - lighthouse_v2alpha1_serviceexport.yaml
   - lighthouse_v2alpha1_serviceimport.yaml
+  - submariner_v1alpha1_broker.yaml
   - submariner_v1alpha1_submariner.yaml
   - submariner_v1alpha1_servicediscovery.yaml
 # +kubebuilder:scaffold:manifestskustomizesamples

config/samples/submariner_v1alpha1_broker.yaml

@@ -0,0 +1,10 @@
+apiVersion: submariner.io/v1alpha1
+kind: Broker
+metadata:
+  name: broker-sample
+spec:
+#  defaultCustomDomains:
+#  globalnetCidrRange:
+  defaultGlobalnetClusterSize: 8192
+  globalnetEnabled: false
+  serviceDiscovery: true