Add Region Feature Flags (#46)

Some clouds may have baremetal nodes, and some may not, so we need to
make an intelligent descision whether the provision a provider network
for clusters or not.  Imbue the regions API with this power.

charts/region/Chart.yaml

@@ -4,8 +4,8 @@ description: A Helm chart for deploying Unikorn's Region Controller
 
 type: application
 
-version: v0.1.30
-appVersion: v0.1.30
+version: v0.1.31
+appVersion: v0.1.31
 
 icon: https://raw.githubusercontent.com/unikorn-cloud/assets/main/images/logos/dark-on-light/icon.png
 

pkg/handler/region/region.go

@@ -128,6 +128,11 @@ func convert(in *unikornv1.Region) *openapi.RegionRead {
 		},
 	}
 
+	// Calculate any region feature flags.
+	if in.Spec.Openstack != nil && in.Spec.Openstack.Network != nil && in.Spec.Openstack.Network.ProviderNetworks != nil {
+		out.Spec.Features.PhysicalNetworks = true
+	}
+
 	return out
 }
 

pkg/openapi/server.spec.yaml

@@ -230,14 +230,30 @@ components:
       type: string
       enum:
       - openstack
+    regionFeatures:
+      description: A set of features the region may provide to clients.
+      type: object
+      required:
+      - physicalNetworks
+      properties:
+        physicalNetworks:
+          description: |
+            If set, this indicates that the region supports physical networks and
+            one should be provisioned for clusters to use.  The impliciation here is
+            the region supports base-metal machines, and these must be provisioned
+            on a physical VLAN etc.
+          type: boolean
     regionSpec:
       description: Information about the region.
       type: object
       required:
       - type
+      - features
       properties:
         type:
           $ref: '#/components/schemas/regionType'
+        features:
+          $ref: '#/components/schemas/regionFeatures'
     regionRead:
       description: A region.
       type: object
@@ -578,6 +594,8 @@ components:
               provisioningStatus: provisioned
             spec:
               type: openstack
+              features:
+                physicalNetworks: true
     imagesResponse:
       description: A list of images that are compatible with this platform.
       content: