Add floating IP check to project delete (#4862)

The main floating IP PR missed the check in `project_delete` for any
existing child floating IP objects. This commit adds in this check so
that a project cannot be deleted while any FIPs remain (matching other
project-scoped resources), as well as a matching integration test.

Closes #4854.

nexus/db-queries/src/db/datastore/project.rs

@@ -221,6 +221,7 @@ impl DataStore {
 
     generate_fn_to_ensure_none_in_project!(instance, name, String);
     generate_fn_to_ensure_none_in_project!(disk, name, String);
+    generate_fn_to_ensure_none_in_project!(floating_ip, name, String);
     generate_fn_to_ensure_none_in_project!(project_image, name, String);
     generate_fn_to_ensure_none_in_project!(snapshot, name, String);
     generate_fn_to_ensure_none_in_project!(vpc, name, String);
@@ -237,6 +238,7 @@ impl DataStore {
         // Verify that child resources do not exist.
         self.ensure_no_instances_in_project(opctx, authz_project).await?;
         self.ensure_no_disks_in_project(opctx, authz_project).await?;
+        self.ensure_no_floating_ips_in_project(opctx, authz_project).await?;
         self.ensure_no_project_images_in_project(opctx, authz_project).await?;
         self.ensure_no_snapshots_in_project(opctx, authz_project).await?;
         self.ensure_no_vpcs_in_project(opctx, authz_project).await?;

nexus/tests/integration_tests/projects.rs

@@ -9,6 +9,7 @@ use http::StatusCode;
 use nexus_test_utils::http_testing::AuthnMode;
 use nexus_test_utils::http_testing::NexusRequest;
 use nexus_test_utils::http_testing::RequestBuilder;
+use nexus_test_utils::resource_helpers::create_floating_ip;
 use nexus_test_utils::resource_helpers::{
     create_default_ip_pool, create_disk, create_project, create_vpc,
     object_create, project_get, projects_list, DiskTest,
@@ -209,6 +210,39 @@ async fn test_project_deletion_with_disk(cptestctx: &ControlPlaneTestContext) {
     delete_project(&url, &client).await;
 }
 
+#[nexus_test]
+async fn test_project_deletion_with_floating_ip(
+    cptestctx: &ControlPlaneTestContext,
+) {
+    let client = &cptestctx.external_client;
+
+    let _test = DiskTest::new(&cptestctx).await;
+
+    // Create a project that we'll use for testing.
+    let name = "springfield-squidport";
+    let url = format!("/v1/projects/{}", name);
+
+    create_default_ip_pool(&client).await;
+
+    create_project(&client, &name).await;
+    delete_project_default_subnet(&name, &client).await;
+    delete_project_default_vpc(&name, &client).await;
+    let fip = create_floating_ip(&client, "my-fip", &name, None, None).await;
+    assert_eq!(
+        "project to be deleted contains a floating ip: my-fip",
+        delete_project_expect_fail(&url, &client).await,
+    );
+    let disk_url =
+        super::external_ips::get_floating_ip_by_id_url(&fip.identity.id);
+    NexusRequest::object_delete(&client, &disk_url)
+        .authn_as(AuthnMode::PrivilegedUser)
+        .execute()
+        .await
+        .expect("failed to delete floating IP");
+
+    delete_project(&url, &client).await;
+}
+
 #[nexus_test]
 async fn test_project_deletion_with_image(cptestctx: &ControlPlaneTestContext) {
     let client = &cptestctx.external_client;