function ensureValidClusterSize()

in src/scaler/scaler-core/scaling-methods/base.js [296:332]

• 35 lines of code
• 6 McCabe index (conditional complexity)

function ensureValidClusterSize(cluster, suggestedSize, scalingDirection) {
  let size = suggestedSize;
  if (suggestedSize > cluster.maxSize) {
    logger.debug({
      message: `\tClamping the suggested size of ${suggestedSize} ${cluster.units} to configured maximum ${cluster.maxSize}`,
      projectId: cluster.projectId,
      regionId: cluster.regionId,
      clusterId: cluster.clusterId,
    });
    size = cluster.maxSize;
  } else if (suggestedSize < cluster.minSize) {
    logger.debug({
      message: `\tClamping the suggested size of ${suggestedSize} ${cluster.units} to configured minimum ${cluster.minSize}`,
      projectId: cluster.projectId,
      regionId: cluster.regionId,
      clusterId: cluster.clusterId,
    });
    size = cluster.minSize;
  }

  /*
   * Check for a cluster size that is too small to prevent an invalid scaling operation.
   * A check for a cluster size that is too large is not included here because this is
   * dependent on the number of replicas in the cluster.
   */
  if (size < CLUSTER_SIZE_MIN) {
    size = CLUSTER_SIZE_MIN;
    logger.debug({
      message: `\tModifiying scale ${scalingDirection} to ${size} ${cluster.units} to ensure minimally valid ${CLUSTER_SIZE_MIN} ${cluster.units}`,
      projectId: cluster.projectId,
      regionId: cluster.regionId,
      clusterId: cluster.clusterId,
    });
  }

  return size;
}