add support for 100gb regional

Author: savirg

pkg/csi_driver/controller.go

@@ -60,7 +60,7 @@ const (
 	zonalSmallTierMaxSize    = 9984 * util.Gb
 	zonalLargeTierMinSize    = 10 * util.Tb
 	zonalLargeTierMaxSize    = 100 * util.Tb
-	regionalSmallTierMinSize = 1 * util.Tb
+	regionalSmallTierMinSize = 100 * util.Gb
 	regionalSmallTierMaxSize = 9984 * util.Gb
 	regionalLargeTierMinSize = 10 * util.Tb
 	regionalLargeTierMaxSize = 100 * util.Tb

pkg/csi_driver/controller_test.go

@@ -766,7 +766,7 @@ func TestCreateVolume(t *testing.T) {
 			},
 			resp: &csi.CreateVolumeResponse{
 				Volume: &csi.Volume{
-					CapacityBytes: 1 * util.Tb,
+					CapacityBytes: 100 * util.Gb,
 					VolumeId:      testVolumeID,
 					VolumeContext: map[string]string{
 						attrIP:           testIP,
@@ -1422,9 +1422,50 @@ func TestGetRequestCapacity(t *testing.T) {
 			bytes: 10 * util.Tb,
 		},
 		{
-			name: "required less than small REGIONAL minimum capacity",
+			name: "required equals small REGIONAL minimum capacity",
 			capRange: &csi.CapacityRange{
-				RequiredBytes: 100 * util.Gb,
+				RequiredBytes: regionalSmallTierMinSize,
+			},
+			tier:  regionalTier,
+			bytes: regionalSmallTierMinSize,
+		},
+		{
+			name: "required 50 GB below small REGIONAL minimum capacity",
+			capRange: &csi.CapacityRange{
+				RequiredBytes: 50 * util.Gb,
+			},
+			tier:  regionalTier,
+			bytes: regionalSmallTierMinSize,
+		},
+		{
+			name: "required 1 GB above small REGIONAL minimum capacity",
+			capRange: &csi.CapacityRange{
+				RequiredBytes: 101 * util.Gb,
+			},
+			tier:  regionalTier,
+			bytes: 101 * util.Gb,
+		},
+		{
+			name: "limit equals small REGIONAL minimum capacity",
+			capRange: &csi.CapacityRange{
+				LimitBytes: regionalSmallTierMinSize,
+			},
+			tier:  regionalTier,
+			bytes: regionalSmallTierMinSize,
+		},
+		{
+			name: "limit below small REGIONAL minimum capacity",
+			capRange: &csi.CapacityRange{
+				LimitBytes: 50 * util.Gb,
+			},
+			tier:          regionalTier,
+			errorExpected: true,
+		},
+		{
+			name: "required below min, limit equals min REGIONAL",
+			capRange: &csi.CapacityRange{
+				RequiredBytes: 50 * util.Gb,
+				LimitBytes:    regionalSmallTierMinSize,
 			},
 			tier:  regionalTier,
 			bytes: regionalSmallTierMinSize,