From e7b25a25014a3b332e632eb811c5b237cda9adab Mon Sep 17 00:00:00 2001
From: hc-github-team-nomad-core
 <82989552+hc-github-team-nomad-core@users.noreply.github.com>
Date: Wed, 3 Apr 2024 08:06:44 -0500
Subject: [PATCH] Backport of api: add missing AllocDirStats field in Go API
 into release/1.5.x (#20271)

Co-authored-by: Tim Gross <tgross@hashicorp.com>
---
 .changelog/20261.txt |  3 +++
 api/nodes.go         |  1 +
 api/nodes_test.go    | 21 +++++++++++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 .changelog/20261.txt

diff --git a/.changelog/20261.txt b/.changelog/20261.txt
new file mode 100644
index 000000000000..6a63d747ab44
--- /dev/null
+++ b/.changelog/20261.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+api: Fixed a bug where `AllocDirStats` field was missing from Read Stats client API
+```
diff --git a/api/nodes.go b/api/nodes.go
index a16191df80c0..ad900c6902ef 100644
--- a/api/nodes.go
+++ b/api/nodes.go
@@ -782,6 +782,7 @@ type HostStats struct {
 	Memory           *HostMemoryStats
 	CPU              []*HostCPUStats
 	DiskStats        []*HostDiskStats
+	AllocDirStats    *HostDiskStats
 	DeviceStats      []*DeviceGroupStats
 	Uptime           uint64
 	CPUTicksConsumed float64
diff --git a/api/nodes_test.go b/api/nodes_test.go
index 0ab48a8fd436..11071f256dd0 100644
--- a/api/nodes_test.go
+++ b/api/nodes_test.go
@@ -151,6 +151,27 @@ func TestNodes_Info(t *testing.T) {
 	must.GreaterEq(t, 1, len(result.Events))
 }
 
+func TestNode_Stats(t *testing.T) {
+	testutil.Parallel(t)
+
+	c, s := makeClient(t, nil, func(c *testutil.TestServerConfig) {
+		c.DevMode = true
+	})
+	defer s.Stop()
+	nodesAPI := c.Nodes()
+	nodeID := oneNodeFromNodeList(t, nodesAPI).ID
+
+	stats, err := nodesAPI.Stats(nodeID, nil)
+	must.NoError(t, err)
+
+	// there isn't much we can reliably check here except that the values are
+	// populated
+	must.NotNil(t, stats.Memory)
+	must.NonZero(t, stats.Memory.Available)
+	must.NotNil(t, stats.AllocDirStats)
+	must.NonZero(t, stats.AllocDirStats.Size)
+}
+
 func TestNodes_NoSecretID(t *testing.T) {
 	testutil.Parallel(t)