Add attach limits for C3 Baremetal and A4X + A4X-Max machine types

Author: davis-haba

pkg/common/constants.go

@@ -104,3 +104,9 @@ var C4AMachineHyperdiskAttachLimitMap = []MachineHyperdiskLimit{
 	{max: 48, value: 31},
 	{max: 72, value: 63},
 }
+
+// A4X Machine Types - Hyperdisk Balanced Limits. The max here is actually the GPU count (not CPU, like the others).
+var A4XMachineHyperdiskAttachLimitMap = []MachineHyperdiskLimit{
+	{max: 1, value: 63},
+	{max: 2, value: 127},
+}

pkg/common/utils.go

@@ -775,6 +775,8 @@ func GetHyperdiskAttachLimit(machineTypePrefix string, vCPUs int64) int64 {
 		limitMap = N4MachineHyperdiskAttachLimitMap
 	case "c4a":
 		limitMap = C4AMachineHyperdiskAttachLimitMap
+	case "a4x":
+		limitMap = A4XMachineHyperdiskAttachLimitMap
 	default:
 		// Fallback to the most conservative Gen4 map for unknown types
 		return MapNumber(vCPUs, C4DMachineHyperdiskAttachLimitMap)