This repository has been archived by the owner on Mar 16, 2024. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 101
/
resources.go
75 lines (62 loc) · 1.89 KB
/
resources.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
package system
import (
"fmt"
"strings"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
)
var ErrInvalidResourceSpecification = fmt.Errorf("invalid resource specification")
// ValidateResources is used by the CLI to validate that the values passed
// can be parsed as a resource.Quantity and that the request is not higher
// than the limit.
func ValidateResources(resources ...string) error {
for _, rs := range resources {
if rs == "" {
continue
}
req, limit, both := strings.Cut(rs, ":")
if !both {
_, err := resource.ParseQuantity(rs)
return err
}
parsedReq, err := resource.ParseQuantity(req)
if err != nil {
return err
}
parsedLimit, err := resource.ParseQuantity(limit)
if err != nil {
return err
}
if parsedReq.Cmp(parsedLimit) > 0 {
return fmt.Errorf("%w: resource request cannot be higher than the limit", ErrInvalidResourceSpecification)
}
}
return nil
}
// ResourceRequirementsFor is used by components to create a ResourceRequirements struct
// based on strings found in the apiv1.Config struct.
func ResourceRequirementsFor(memory, cpu string) corev1.ResourceRequirements {
requirements := corev1.ResourceRequirements{Requests: corev1.ResourceList{}, Limits: corev1.ResourceList{}}
for resourceType, resourceString := range map[corev1.ResourceName]string{
corev1.ResourceMemory: memory,
corev1.ResourceCPU: cpu,
} {
reqString, limitString, both := strings.Cut(resourceString, ":")
if !both {
parsedReq, err := resource.ParseQuantity(resourceString)
if err == nil {
requirements.Requests[resourceType] = parsedReq
}
continue
}
parsedReq, err := resource.ParseQuantity(reqString)
if err == nil {
requirements.Requests[resourceType] = parsedReq
}
parsedLimit, err := resource.ParseQuantity(limitString)
if err == nil {
requirements.Limits[resourceType] = parsedLimit
}
}
return requirements
}