[Hypershift] Expose /manifests

* Fixes SDA-6794

model/clusters_mgmt/v1/external_configuration_type.model

@@ -21,4 +21,7 @@ struct ExternalConfiguration {
 
 	// list of labels externally configured on the clusterdeployment.
 	link Labels []Label
+
+	// list of manifest externally configured for a hosted cluster.
+	link Manifests []Manifest
 }

model/clusters_mgmt/v1/manifest_resource.model

@@ -0,0 +1,32 @@
+/*
+Copyright (c) 2020 Red Hat, Inc.
+
+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.
+*/
+
+// Manages a specific Manifest.
+resource Manifest {
+	// Retrieves the details of the manifest.
+	method Get {
+		out Body Manifest
+	}
+
+	// Update the manifest.
+	method Update {
+		in out Body Manifest
+	}
+
+	// Deletes the manifest.
+	method Delete {
+	}
+}

model/clusters_mgmt/v1/manifest_type.model

@@ -0,0 +1,21 @@
+/*
+Copyright (c) 2020 Red Hat, Inc.
+
+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.
+*/
+
+// Representation of a manifestwork.
+class Manifest {
+	// List of k8s objects to deploy on a hosted cluster.
+	Workloads []Interface
+}

model/clusters_mgmt/v1/manifests_resource.model

@@ -0,0 +1,45 @@
+/*
+Copyright (c) 2019 Red Hat, Inc.
+
+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.
+*/
+
+// Manages the collection of Manifests of a cluster.
+resource Manifests {
+	// Retrieves the list of manifests.
+	method List {
+		// Index of the requested page, where one corresponds to the first page.
+		in out Page Integer = 1
+
+		// Number of items contained in the returned page.
+		in out Size Integer = 100
+
+		// Total number of items of the collection.
+		out Total Integer
+
+		// Retrieved list of Manifests.
+		out Items []Manifest
+	}
+
+	// Adds a new manifest to a cluster.
+	method Add {
+		// Description of the manifest.
+		in out Body Manifest
+	}
+
+	// Reference to the service that manages a specific manifest.
+	locator Manifest {
+		target Manifest
+		variable ID
+	}
+}