fun local start 在本地启动spring-boot应用之后无法访问

环境概述
平台 windows 10
funcraft:3.6.23
[问题描述]
我写了一个spring-boot工程,代码如下
https://gitee.com/litongjava_admin/java-aliyun-fc-study/tree/master/spring-boot-demo
对应的template.yml如下
```
ROSTemplateFormatVersion: '2015-09-01'
Transform: 'Aliyun::Serverless-2018-04-03'
Resources:
spring-boot-demo: # service name
Type: 'Aliyun::Serverless::Service'
Properties:
Description: This is FC service
spring-boot-demo: # function name
Type: 'Aliyun::Serverless::Function'
Properties:
Handler: index.handler
Runtime: custom
CodeUri: ./
MemorySize: 1024
InstanceConcurrency: 5
Timeout: 120

Events:
httpTrigger:
Type: HTTP
Properties:
AuthType: ANONYMOUS
Methods: ['GET', 'POST', 'PUT']
Domain:
Type: Aliyun::Serverless::CustomDomain
Properties:
DomainName: Auto
Protocol: HTTP
RouteConfig:
Routes:
"/*":
ServiceName: spring-boot-demo
FunctionName: spring-boot-demo

```
该工程一种与2个http接口,我fun deploy -y 部署到阿里云,部署成功,显示日志如下
```
E:\dev_workspace\java\java-study\java-aliyun-fc-study\spring-boot-demo>fun deploy -y
using template: .fun\build\artifacts\template.yml
ENOENT: no such file or directory, lstat 'E:\dev_workspace\eclipse-jee-2019-12\spring-boot-demo'

E:\dev_workspace\java\java-study\java-aliyun-fc-study\spring-boot-demo>fun deploy -y
using template: template.yml
using region: cn-shanghai
using accountId: ***********4149
using accessKeyId: ***********9Wqn
using timeout: 10

Collecting your services information, in order to caculate devlopment changes...

Resources Changes(Beta version! Only FC resources changes will be displayed):

┌──────────────────┬──────────────────────────────┬────────┬─────────────────────┐
│ Resource │ ResourceType │ Action │ Property │
├──────────────────┼──────────────────────────────┼────────┼─────────────────────┤
│ │ │ │ Handler │
│ │ │ ├─────────────────────┤
│ │ │ │ Runtime │
│ │ │ ├─────────────────────┤
│ │ │ │ CodeUri │
│ spring-boot-demo │ Aliyun::Serverless::Function │ Add ├─────────────────────┤
│ │ │ │ MemorySize │
│ │ │ ├─────────────────────┤
│ │ │ │ InstanceConcurrency │
│ │ │ ├─────────────────────┤
│ │ │ │ Timeout │
├──────────────────┼──────────────────────────────┼────────┼─────────────────────┤
│ │ │ │ AuthType │
│ httpTrigger │ HTTP │ Add ├─────────────────────┤
│ │ │ │ Methods │
└──────────────────┴──────────────────────────────┴────────┴─────────────────────┘

Waiting for service spring-boot-demo to be deployed...
Waiting for function spring-boot-demo to be deployed...
Waiting for packaging function spring-boot-demo code...
The function spring-boot-demo has been packaged. A total of 5 files were compressed and the final size was 14.05 MB
Waiting for HTTP trigger httpTrigger to be deployed...
triggerName: httpTrigger
methods: [ 'GET', 'POST', 'PUT' ]
trigger httpTrigger deploy success
function spring-boot-demo deploy success
service spring-boot-demo deploy success

Detect 'DomainName:Auto' of custom domain 'Domain'
Request a new temporary domain ...
The assigned temporary domain is http://54790713-1709155087484149.test.functioncompute.com，expired at 2021-07-07 18:45:13, limited by 1000 per day.
Waiting for custom domain Domain to be deployed...
custom domain Domain deploy success
```
从上面的信息可以看到,分配的临时域名是http://54790713-1709155087484149.test.functioncompute.com
然后我测试访问2个接口都成功了

接下来我要做的是从本地调试
我先是构建,显示构建成功
```
E:\dev_workspace\java\java-study\java-aliyun-fc-study\spring-boot-demo>fun build
using template: template.yml
start building function dependencies without docker

building spring-boot-demo/spring-boot-demo
running task: flow MavenTaskFlow
running task: MavenCompileTask
running task: MavenCopyDependencies
running task: CopyMavenArtifacts

Build Success

Built artifacts: .fun\build\artifacts
Built template: .fun\build\artifacts\template.yml

Tips for next step
======================
* Invoke Event Function: fun local invoke
* Invoke Http Function: fun local start
* Deploy Resources: fun deploy
```
然后我在本地启动,显示启动成功
```
E:\dev_workspace\java\java-study\java-aliyun-fc-study\spring-boot-demo>fun local start
using template: .fun\build\artifacts\template.yml
HttpTrigger httpTrigger of spring-boot-demo/spring-boot-demo was registered
url: http://localhost:8000/2016-08-15/proxy/spring-boot-demo/spring-boot-demo/
methods: [ 'GET', 'POST', 'PUT' ]
authType: ANONYMOUS

Tips：you can also use these commands to run/debug custom domain resources:

Start with customDomain:
* fun local start Domain

Debug with customDomain:
* fun local start -d 3000 Domain

function compute app listening on port 8000!
```
但是本地成功后我该如何访问我spring-boot中的接口呢?
访问http://localhost:8000/2016-08-15/proxy/spring-boot-demo/spring-boot-demo/浏览器显示如下
同时日志显示如下
```
skip pulling image aliyunfc/runtime-custom:1.9.17...
sh: 1: /code/bootstrap: not found
2021/06/27 11:00:00 exit status 127
Fun Error:
/var/fc/runtime/custom/mock exited with code 126
```

我应该使用什么正确的方式访问我上面开发的2个接口呢?

Start with the template.yml and the output from fun build and fun local start. Reproduce the request at the registered localhost URL, then investigate the reported /code/bootstrap not found error in the custom runtime path. Done means the Spring Boot interfaces are reachable through local start without the runtime exiting.

Written by the indexing model from the issue text.