Add an API endpoint for IP pools available to a given project* (oxide…

…computer#2148)

nexus/src/external_api/http_entrypoints.rs

@@ -1074,6 +1074,46 @@ async fn ip_pool_list(
     apictx.external_latencies.instrument_dropshot_handler(&rqctx, handler).await
 }
 
+/// List all IP Pools that can be used by a given project.
+#[endpoint {
+    method = GET,
+    path = "/v1/projects/{project}/ip-pools",
+    tags = ["projects"],
+}]
+async fn project_ip_pool_list(
+    rqctx: RequestContext<Arc<ServerContext>>,
+    _path_params: Path<params::ProjectPath>,
+    query_params: Query<PaginatedByNameOrId>,
+) -> Result<HttpResponseOk<ResultsPage<IpPool>>, HttpError> {
+    // Per https://github.com/oxidecomputer/omicron/issues/2148
+    // This is currently the same list as /v1/system/ip-pools, that is to say,
+    // IP pools that are *available to* a given project, those being ones that
+    // are not the internal pools for Oxide service usage. This may change
+    // in the future as the scoping of pools is further developed, but for now,
+    // this is literally a duplicate of `ip_pool_list`:
+    let apictx = rqctx.context();
+    let handler = async {
+        let nexus = &apictx.nexus;
+        let query = query_params.into_inner();
+        let pag_params = data_page_params_for(&rqctx, &query)?;
+        let scan_params = ScanByNameOrId::from_query(&query)?;
+        let paginated_by = name_or_id_pagination(&pag_params, scan_params)?;
+        let opctx = crate::context::op_context_for_external_api(&rqctx).await?;
+        let pools = nexus
+            .ip_pools_list(&opctx, &paginated_by)
+            .await?
+            .into_iter()
+            .map(IpPool::from)
+            .collect();
+        Ok(HttpResponseOk(ScanByNameOrId::results_page(
+            &query,
+            pools,
+            &marker_for_name_or_id,
+        )?))
+    };
+    apictx.external_latencies.instrument_dropshot_handler(&rqctx, handler).await
+}
+
 #[derive(Deserialize, JsonSchema)]
 pub struct IpPoolPathParam {
     pub pool_name: Name,