| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package k8s_state |
| 4 | |
| 5 | import ( |
| 6 | "fmt" |
| 7 | |
| 8 | appsv1 "k8s.io/api/apps/v1" |
| 9 | batchv1 "k8s.io/api/batch/v1" |
| 10 | corev1 "k8s.io/api/core/v1" |
| 11 | ) |
| 12 | |
| 13 | type resource interface { |
| 14 | source() string |
| 15 | kind() kubeResourceKind |
| 16 | value() any |
| 17 | } |
| 18 | |
| 19 | type kubeResourceKind uint8 |
| 20 | |
| 21 | const ( |
| 22 | kubeResourceNode kubeResourceKind = iota + 1 |
| 23 | kubeResourcePod |
| 24 | kubeResourceDeployment |
| 25 | kubeResourceCronJob |
| 26 | kubeResourceJob |
| 27 | ) |
| 28 | |
| 29 | func toNode(i any) (*corev1.Node, error) { |
| 30 | switch v := i.(type) { |
| 31 | case *corev1.Node: |
| 32 | return v, nil |
| 33 | case resource: |
| 34 | return toNode(v.value()) |
| 35 | default: |
| 36 | return nil, fmt.Errorf("unexpected type: %T (expected %T or %T)", v, &corev1.Node{}, resource(nil)) |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | func toPod(i any) (*corev1.Pod, error) { |
| 41 | switch v := i.(type) { |
| 42 | case *corev1.Pod: |
| 43 | return v, nil |
| 44 | case resource: |
| 45 | return toPod(v.value()) |
| 46 | default: |
| 47 | return nil, fmt.Errorf("unexpected type: %T (expected %T or %T)", v, &corev1.Pod{}, resource(nil)) |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | func toDeployment(i any) (*appsv1.Deployment, error) { |
| 52 | switch v := i.(type) { |
| 53 | case *appsv1.Deployment: |
| 54 | return v, nil |
| 55 | case resource: |
| 56 | return toDeployment(v.value()) |
| 57 | default: |
| 58 | return nil, fmt.Errorf("unexpected type: %T (expected %T or %T)", v, &appsv1.Deployment{}, resource(nil)) |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | func toCronJob(i any) (*batchv1.CronJob, error) { |
| 63 | switch v := i.(type) { |
| 64 | case *batchv1.CronJob: |
| 65 | return v, nil |
| 66 | case resource: |
| 67 | return toCronJob(v.value()) |
| 68 | default: |
| 69 | return nil, fmt.Errorf("unexpected type: %T (expected %T or %T)", v, &batchv1.CronJob{}, resource(nil)) |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | func toJob(i any) (*batchv1.Job, error) { |
| 74 | switch v := i.(type) { |
| 75 | case *batchv1.Job: |
| 76 | return v, nil |
| 77 | case resource: |
| 78 | return toJob(v.value()) |
| 79 | default: |
| 80 | return nil, fmt.Errorf("unexpected type: %T (expected %T or %T)", v, &batchv1.Job{}, resource(nil)) |
| 81 | } |
| 82 | } |