api: respect wildcard in evaluations list API (#11710)

.changelog/11710.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+api: Updated the evaluations list API to respect wildcard namespaces
+```

nomad/eval_endpoint.go

@@ -353,7 +353,9 @@ func (e *Eval) List(args *structs.EvalListRequest,
 			// Scan all the evaluations
 			var err error
 			var iter memdb.ResultIterator
-			if prefix := args.QueryOptions.Prefix; prefix != "" {
+			if args.RequestNamespace() == structs.AllNamespacesSentinel {
+				iter, err = store.Evals(ws)
+			} else if prefix := args.QueryOptions.Prefix; prefix != "" {
 				iter, err = store.EvalsByIDPrefix(ws, args.RequestNamespace(), prefix)
 			} else {
 				iter, err = store.EvalsByNamespace(ws, args.RequestNamespace())

nomad/eval_endpoint_test.go

@@ -718,6 +718,41 @@ func TestEvalEndpoint_List(t *testing.T) {
 
 }
 
+func TestEvalEndpoint_ListAllNamespaces(t *testing.T) {
+	t.Parallel()
+
+	s1, cleanupS1 := TestServer(t, nil)
+	defer cleanupS1()
+	codec := rpcClient(t, s1)
+	testutil.WaitForLeader(t, s1.RPC)
+
+	// Create the register request
+	eval1 := mock.Eval()
+	eval1.ID = "aaaaaaaa-3350-4b4b-d185-0e1992ed43e9"
+	eval2 := mock.Eval()
+	eval2.ID = "aaaabbbb-3350-4b4b-d185-0e1992ed43e9"
+	s1.fsm.State().UpsertEvals(structs.MsgTypeTestSetup, 1000, []*structs.Evaluation{eval1, eval2})
+
+	// Lookup the eval
+	get := &structs.EvalListRequest{
+		QueryOptions: structs.QueryOptions{
+			Region:    "global",
+			Namespace: "*",
+		},
+	}
+	var resp structs.EvalListResponse
+	if err := msgpackrpc.CallWithCodec(codec, "Eval.List", get, &resp); err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	if resp.Index != 1000 {
+		t.Fatalf("Bad index: %d %d", resp.Index, 1000)
+	}
+
+	if len(resp.Evaluations) != 2 {
+		t.Fatalf("bad: %#v", resp.Evaluations)
+	}
+}
+
 func TestEvalEndpoint_List_ACL(t *testing.T) {
 	t.Parallel()
 

website/content/api-docs/evaluations.mdx

@@ -49,6 +49,10 @@ The table below shows this endpoint's support for
   specific evaluation status (one of `blocked`, `pending`, `complete`,
   `failed`, or `canceled`).
 
+- `namespace` `(string: "default")` - Specifies the target
+  namespace. Specifying `*` will return all evaluations across all
+  authorized namespaces.
+
 ### Sample Request
 
 ```shell-session