Add resource requirements to Timoni's CUE schemas

Signed-off-by: Stefan Prodan <[email protected]>

schemas/timoni.sh/core/v1alpha1/requirements.cue

@@ -0,0 +1,40 @@
+// Copyright 2023 Stefan Prodan
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha1
+
+import (
+	"strconv"
+	"strings"
+)
+
+// CPUQuantity is a string that is validated as a quantity of CPU, such as 100m or 2000m.
+#CPUQuantity: string & =~"^[1-9]\\d*m$"
+
+// MemoryQuantity is a string that is validated as a quantity of memory, such as 128Mi or 2Gi.
+#MemoryQuantity: string & =~"^[1-9]\\d*(Mi|Gi)$"
+
+// ResourceRequirement defines the schema for the CPU and Memory resource requirements.
+#ResourceRequirement: {
+	cpu?:    #CPUQuantity
+	memory?: #MemoryQuantity
+}
+
+// ResourceRequirements defines the schema for the compute resource requirements of a container.
+// More info: https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/.
+#ResourceRequirements: {
+	// Limits describes the maximum amount of compute resources allowed.
+	limits?: #ResourceRequirement
+
+	// Requests describes the minimum amount of compute resources required.
+	// Requests cannot exceed Limits.
+	requests?: #ResourceRequirement & {
+		if limits != _|_ {
+			if limits.cpu != _|_ {
+				_lc:  strconv.Atoi(strings.Split(limits.cpu, "m")[0])
+				_rc:  strconv.Atoi(strings.Split(requests.cpu, "m")[0])
+				#cpu: int & >=_rc & _lc
+			}
+		}
+	}
+}