@thinkdeep/k8s-manifest/src/k8s-kind.js

Simple interface providing kubernetes javascript client object creation by use of yaml strings or objects.

import k8s from '@kubernetes/client-node';

const kindStringToManifestKindMap = {};

const initKindMap = () => {
  for (const registeredKind in k8s) {
    if (Object.prototype.hasOwnProperty.call(k8s, registeredKind)) {
      const versionlessRegisteredKind = removeVersion(registeredKind);
      kindStringToManifestKindMap[versionlessRegisteredKind.toLowerCase()] =
        versionlessRegisteredKind;
    }
  }
};

const k8sKind = (prospectiveKind) => {
  if (Object.keys(kindStringToManifestKindMap).length === 0) {
    initKindMap();
  }

  const versionlessKind = removeVersion(prospectiveKind);

  const targetKind =
    kindStringToManifestKindMap[versionlessKind.toLowerCase()] || '';

  if (!targetKind) {
    throw new Error(
      `The kind ${prospectiveKind} wasn't found in the k8s client library. Are you sure you supplied an accepted kind?`
    );
  }

  return targetKind;
};

const removeVersion = (constructorName) => {
  if (!constructorName) return constructorName;

  return constructorName.slice(lastIntegerIndex(constructorName) + 1);
};

const lastIntegerIndex = (str) => {
  const subject = str.trim();

  let lastIndex = -1;
  for (let i = 0; i < subject.length; i++) {
    if (isNumber(subject[i])) {
      lastIndex = i;
    }
  }

  return lastIndex;
};

const isNumber = (str) => {
  return !isNaN(str) && !isNaN(parseFloat(str));
};

export {k8sKind};