stateful deployments: add Sticky property to task group volumes (#24641)

nomad/structs/diff_test.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/hashicorp/nomad/ci"
 	"github.com/hashicorp/nomad/helper/pointer"
-	"github.com/stretchr/testify/require"
+	"github.com/shoenig/test/must"
 )
 
 func TestJobDiff(t *testing.T) {
@@ -4864,6 +4864,12 @@ func TestTaskGroupDiff(t *testing.T) {
 								Old:  "",
 								New:  "foo-src",
 							},
+							{
+								Type: DiffTypeAdded,
+								Name: "Sticky",
+								Old:  "",
+								New:  "false",
+							},
 							{
 								Type: DiffTypeAdded,
 								Name: "Type",
@@ -5475,17 +5481,17 @@ func TestTaskGroupDiff(t *testing.T) {
 	}
 
 	for i, c := range cases {
-		require.NotEmpty(t, c.TestCase, "case #%d needs a name", i+1)
+		must.NotEq(t, c.TestCase, "", must.Sprintf("case #%d needs a name", i+1))
 
 		t.Run(c.TestCase, func(t *testing.T) {
 
 			result, err := c.Old.Diff(c.New, c.Contextual)
 			switch c.ExpErr {
 			case true:
-				require.Error(t, err, "case %q expected error", c.TestCase)
+				must.Error(t, err, must.Sprintf("case %q expected error", c.TestCase))
 			case false:
-				require.NoError(t, err, "case %q expected no error", c.TestCase)
-				require.Equal(t, c.Expected, result)
+				must.NoError(t, err, must.Sprintf("case %q expected no error", c.TestCase))
+				must.Eq(t, c.Expected, result)
 			}
 		})
 	}
@@ -8370,6 +8376,12 @@ func TestTaskDiff(t *testing.T) {
 								Old:  "",
 								New:  "Z",
 							},
+							{
+								Type: DiffTypeAdded,
+								Name: "Sticky",
+								Old:  "",
+								New:  "false",
+							},
 							{
 								Type: DiffTypeAdded,
 								Name: "Volume",
@@ -9870,10 +9882,10 @@ func TestTaskDiff(t *testing.T) {
 		t.Run(c.Name, func(t *testing.T) {
 			actual, err := c.Old.Diff(c.New, c.Contextual)
 			if c.Error {
-				require.Error(t, err)
+				must.Error(t, err)
 			} else {
-				require.NoError(t, err)
-				require.Equal(t, c.Expected, actual)
+				must.NoError(t, err)
+				must.Eq(t, c.Expected, actual)
 			}
 		})
 	}
@@ -10848,7 +10860,7 @@ func TestServicesDiff(t *testing.T) {
 	for _, c := range cases {
 		t.Run(c.Name, func(t *testing.T) {
 			actual := serviceDiffs(c.Old, c.New, c.Contextual)
-			require.Equal(t, c.Expected, actual)
+			must.Eq(t, c.Expected, actual)
 		})
 	}
 }

nomad/structs/volumes.go

@@ -103,12 +103,14 @@ func HostVolumeSliceMerge(a, b []*ClientHostVolumeConfig) []*ClientHostVolumeCon
 	return n
 }
 
-// VolumeRequest is a representation of a storage volume that a TaskGroup wishes to use.
+// VolumeRequest is a representation of a storage volume that a TaskGroup wishes
+// to use.
 type VolumeRequest struct {
 	Name           string
 	Type           string
 	Source         string
 	ReadOnly       bool
+	Sticky         bool
 	AccessMode     CSIVolumeAccessMode
 	AttachmentMode CSIVolumeAttachmentMode
 	MountOptions   *CSIMountOptions
@@ -128,6 +130,8 @@ func (v *VolumeRequest) Equal(o *VolumeRequest) bool {
 		return false
 	case v.ReadOnly != o.ReadOnly:
 		return false
+	case v.Sticky != o.Sticky:
+		return false
 	case v.AccessMode != o.AccessMode:
 		return false
 	case v.AttachmentMode != o.AttachmentMode:
@@ -259,6 +263,7 @@ type VolumeMount struct {
 	Volume          string
 	Destination     string
 	ReadOnly        bool
+	Sticky          bool
 	PropagationMode string
 	SELinuxLabel    string
 }
@@ -279,6 +284,8 @@ func (v *VolumeMount) Equal(o *VolumeMount) bool {
 		return false
 	case v.ReadOnly != o.ReadOnly:
 		return false
+	case v.Sticky != o.Sticky:
+		return false
 	case v.PropagationMode != o.PropagationMode:
 		return false
 	case v.SELinuxLabel != o.SELinuxLabel:

nomad/structs/volumes_test.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/hashicorp/nomad/ci"
 	"github.com/shoenig/test/must"
-	"github.com/stretchr/testify/require"
 )
 
 func TestVolumeRequest_Validate(t *testing.T) {
@@ -92,7 +91,7 @@ func TestVolumeRequest_Validate(t *testing.T) {
 		t.Run(tc.name, func(t *testing.T) {
 			err := tc.req.Validate(JobTypeSystem, tc.taskGroupCount, tc.canariesCount)
 			for _, expected := range tc.expected {
-				require.Contains(t, err.Error(), expected)
+				must.StrContains(t, err.Error(), expected)
 			}
 		})
 	}