refactor(compute): Directly expose scheduler stats to user

This change updates the `ComputeService` interface to directly expose
statistics about the scheduler to the user, such that they do not
necessarily have to interact with OpenTelemetry to obtain these values.

1 files changed, 7 insertions, 0 deletions

diff --git a/opendc-compute/opendc-compute-api/src/main/kotlin/org/opendc/compute/api/Server.kt b/opendc-compute/opendc-compute-api/src/main/kotlin/org/opendc/compute/api/Server.kt
index b508a9f8..64b73d0b 100644
--- a/opendc-compute/opendc-compute-api/src/main/kotlin/org/opendc/compute/api/Server.kt
+++ b/opendc-compute/opendc-compute-api/src/main/kotlin/org/opendc/compute/api/Server.kt
@@ -22,6 +22,8 @@
 
 package org.opendc.compute.api
 
+import java.time.Instant
+
 /**
  * A stateful object representing a server instance that is running on some physical or virtual machine.
  */
@@ -42,6 +44,11 @@ public interface Server : Resource {
     public val state: ServerState
 
     /**
+     * The most recent moment in time when the server was launched.
+     */
+    public val launchedAt: Instant?
+
+    /**
      * Request the server to be started.
      *
      * This method is guaranteed to return after the request was acknowledged, but might return before the server was