MGMT-16066: Resource Subscription Server

Description:
- update the alarm subscription handler to a generic subscription
  handler that can also be used for resource subscriptions
- add a new command for the resource subscription server
- update the alarm and resource subscription servers to also set
  the subscription type

.vscode/launch.json

@@ -85,6 +85,19 @@
                                 "--resource-server-url=${env:RESOURCE_SERVER_URL}",
                         ]
                 },
+                {
+                    "name": "start infrastructure-inventory-subscription-server",
+                    "type": "go",
+                    "request": "launch",
+                    "mode": "auto",
+                    "program": "${workspaceFolder}",
+                    "args": [
+                            "start",
+                            "infrastructure-inventory-subscription-server",
+                            "--log-level=debug",
+                            "--cloud-id=6575154c-72fc-4ed8-9a87-a81885ab38bb"
+                    ]
+                },
                 {
                         "name": "test",
                         "type": "go",

README.md

@@ -167,6 +167,79 @@ $ curl -s http://localhost:8002/o2ims-infrastructureInventory/v1/resourcePools/{
 /resources | jq
 ```
 
+#### Infrastructure Inventory Subscription Server (Resource Server)
+
+The infrastructure inventory subscription server exposes endpoints for creating, retrieving
+and deleting resource subscriptions.
+
+***Notes:***
+- No URL or token are required
+- A connection to an ACM hub cluster is required
+
+Start the infrastructure inventory subscription server with a command like this:
+
+```
+$ ./oran-o2ims start infrastructure-inventory-subscription-server \
+--log-level=debug \
+--log-file=stdout \
+--log-field="server=resource-subscriptions" \
+--api-listener-address=localhost:8004 \
+--metrics-listener-address=localhost:8008 \
+--cloud-id=123
+```
+
+For more information about other command line flags use the `--help` command:
+
+```
+$ ./oran-o2ims start infrastructure-inventory-subscription-server --help
+```
+
+##### Run and Debug
+
+Inside _VS Code_ use the _Run and Debug_ option with the `start
+infrastructure-inventory-subscription-server` [configuration](.vscode/launch.json).
+
+##### Request Examples
+
+###### GET Infrastructure Inventory Subscription List
+
+To get a list of resource subscriptions:
+```
+$ curl -s http://localhost:8004/o2ims-infrastructureInventory/v1/subscriptions | jq
+```
+
+###### GET Infrastructure Inventory Subscription Information
+
+To get all the information about an existing resource subscription:
+```
+$ curl -s http://localhost:8004/o2ims-infrastructureInventory/v1/subscriptions/<subscription_uuid> | jq
+```
+
+###### POST a new Infrastructure Inventory Subscription Information
+
+To add a new resource subscription:
+```
+$ curl -s -X POST \
+--header "Content-Type: application/json" \
+-d @infra-sub.json http://127.0.0.1:8004/o2ims-infrastructureInventory/v1/subscriptions | jq
+```
+Where the content of `infra-sub.json` is as follows:
+```
+{
+  "consumerSubscriptionId": "69253c4b-8398-4602-855d-783865f5f25c",
+  "filter": "(eq,extensions/country,US);",
+  "callback": "https://128.224.115.15:1081/smo/v1/o2ims_inventory_observer"
+}
+```
+
+###### DELETE an Infrastructure Inventory Subscription
+
+To delete an existing resource subscription:
+```
+$ curl -s -X DELETE \
+http://localhost:8000/o2ims-infrastructureInventory/v1/subscriptions/<subscription_uuid> | jq
+```
+
 #### Alarm server
 
 The alarm server exposes endpoints for retrieving alarms (AlarmEventRecord objects).
@@ -282,4 +355,4 @@ $ curl -s http://localhost:8001/o2ims-infrastructureMonitoring/v1/alarmSubscript
 Above example will get a list of existing alarm subscriptions
 
 Inside _VS Code_ use the _Run and Debug_ option with the `start
-alarm-subscription-server` [configuration](.vscode/launch.json).
+alarm-subscription-server` [configuration](.vscode/launch.json).

internal/cmd/server/start_alarm_subscription_server.go

@@ -220,12 +220,13 @@ func (c *AlarmSubscriptionServerCommand) run(cmd *cobra.Command, argv []string)
 	}
 
 	// Create the handler:
-	handler, err := service.NewAlarmSubscriptionHandler().
+	handler, err := service.NewSubscriptionHandler().
 		SetLogger(logger).
 		SetLoggingWrapper(loggingWrapper).
 		SetCloudID(cloudID).
 		SetExtensions(extensions...).
 		SetKubeClient(kubeClient).
+		SetSubscriptionType(service.SubscriptionTypeAlarm).
 		Build(ctx)
 
 	if err != nil {
@@ -269,7 +270,7 @@ func (c *AlarmSubscriptionServerCommand) run(cmd *cobra.Command, argv []string)
 	if err != nil {
 		logger.ErrorContext(
 			ctx,
-			"Failed to to create API listener",
+			"Failed to create API listener",
 			slog.String("error", err.Error()),
 		)
 		return exit.Error(1)