1import * as _ from 'lodash-es'
2import { throwIf } from '../../sharedF/throwErrorF/throwIfF.mts'
3
4export const k8sPortRange = [30000, 32767] as const
5
6type NodePortTmplProps = {
7  name: string
8  nodePort: number
9  svcPort: number
10  inclUdp?: boolean
11  selector?: Record<string, string>
12  externalTrafficPolicy?: 'Cluster' | 'Local'
13}
14
15export const genericNodePortTmpl = ({
16  name, nodePort, svcPort, inclUdp=false, selector, externalTrafficPolicy
17}: NodePortTmplProps) => {
18  const sel = selector || {name}
19  const [minPort, maxPort] = k8sPortRange
20  throwIf(() => !(nodePort >= minPort && nodePort <= maxPort), {minPort, maxPort})
21  return {
22    apiVersion: 'v1',
23    kind: 'Service',
24    metadata: {
25      name,
26    },
27    spec: {
28      ports: _.compact([
29        {
30          nodePort,
31          port: svcPort,
32          protocol: 'TCP',
33          targetPort: svcPort,
34          name: `tcp-${nodePort}`
35        },
36        inclUdp && {
37          nodePort,
38          port: svcPort,
39          protocol: 'UDP',
40          targetPort: svcPort,
41          name: `udp-${nodePort}`
42        }
43      ]),
44      selector: sel,
45      type: 'NodePort',
46      ...(externalTrafficPolicy ? {externalTrafficPolicy} : {})
47    },
48  }
49}