clever-tools/src/commands/scale.js

Command Line Interface for Clever Cloud.

import { Logger } from '../logger.js';
import * as Application from '../models/application.js';

function validateOptions(options) {
  let { flavor, 'min-flavor': minFlavor, 'max-flavor': maxFlavor } = options;
  let {
    instances,
    'min-instances': minInstances,
    'max-instances': maxInstances,
    'build-flavor': buildFlavor,
  } = options;

  if ([flavor, minFlavor, maxFlavor, instances, minInstances, maxInstances, buildFlavor].every((v) => v == null)) {
    throw new Error('You should provide at least 1 option');
  }

  if (flavor != null) {
    if (minFlavor != null || maxFlavor != null) {
      throw new Error("You can't use --flavor and --min-flavor or --max-flavor at the same time");
    }
    minFlavor = flavor;
    maxFlavor = flavor;
  }

  if (instances != null) {
    if (minInstances != null || maxInstances != null) {
      throw new Error("You can't use --instances and --min-instances or --max-instances at the same time");
    }
    minInstances = instances;
    maxInstances = instances;
  }

  if (minInstances != null && maxInstances != null && minInstances > maxInstances) {
    throw new Error("min-instances can't be greater than max-instances");
  }

  if (minFlavor != null && maxFlavor != null) {
    const minFlavorIndex = Application.listAvailableFlavors().indexOf(minFlavor);
    const maxFlavorIndex = Application.listAvailableFlavors().indexOf(maxFlavor);
    if (minFlavorIndex > maxFlavorIndex) {
      throw new Error("min-flavor can't be a greater flavor than max-flavor");
    }
  }

  return { minFlavor, maxFlavor, minInstances, maxInstances, buildFlavor };
}

export async function scale(params) {
  const { alias, app: appIdOrName } = params.options;
  const { minFlavor, maxFlavor, minInstances, maxInstances, buildFlavor } = validateOptions(params.options);
  const { ownerId, appId } = await Application.resolveId(appIdOrName, alias);

  await Application.setScalability(
    appId,
    ownerId,
    {
      minFlavor,
      maxFlavor,
      minInstances,
      maxInstances,
    },
    buildFlavor,
  );

  Logger.println('App rescaled successfully');
}