在AWS CDK中创建EFS时，可以指定Access Point的名称来创建单个Access Point：

const accessPoint = efs.addAccessPoint('my-access-point');

如果需要创建多个Access Points，则可以通过在Access Point名称中添加随机后缀来创建：

import * as crypto from 'crypto';

const suffix = crypto.randomBytes(8).toString('hex');
const accessPointName = `my-access-point-${suffix}`;

const accessPoint = efs.addAccessPoint(accessPointName, {
  path: '/path/',
  createAcl: {
    ownerGid: 'gid',
    ownerUid: 'uid',
    permissions: '755',
  },
});

判断应该使用已经存在的Access Point还是创建新的Access Point可以通过检查Access Point名称是否已经存在来决定：

import { CfnOutput } from '@aws-cdk/core';
import { AccessPoint } from '@aws-cdk/aws-efs';

const accessPoints = efs.accessPoints;

if (accessPoints.some((accessPoint: AccessPoint) => accessPoint.accessPointId === 'my-access-point')) {
  // Use existing Access Point
  new CfnOutput(this, 'Access Point ID', { value: accessPoint.accessPointId });
} else {
  // Create new Access Point
  const accessPoint = efs.addAccessPoint('my-access-point');
  new CfnOutput(this, 'Access Point ID', { value: accessPoint.accessPointId });
}