部署到 AWS 后，我收到 502 bad gateway 错误
After deployment to AWS I get 502 bad gateway error
我使用 gitlab ci/cd 成功地将 nodejs 应用程序部署到 aws elastic beanstalk。但是，当我尝试访问 aws 环境的 link 时，出现 502 bad gateway 错误。我下载了日志文件，下面是我得到的最后日志。
2022/03/20 04:58:57 [error] 723#723: *97 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:02 [error] 723#723: *99 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.73.189, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:12 [error] 723#723: *101 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:17 [error] 723#723: *103 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.73.189, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:27 [error] 723#723: *105 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:32 [error] 723#723: *107 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.73.189, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:42 [error] 723#723: *109 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
这种情况出了什么问题，如何解决？
更新
这是我使用的ED平台
Node.js 16 running on 64bit Amazon Linux 2
我现在正在使用 HTTP。
Node.js 默认使用端口 3000，但是 EB uses 8080:
By default, Elastic Beanstalk configures the proxy to forward requests to your application on port 8080.
您的错误表明您的应用程序未使用端口 8080，这可以解释为什么 EB 无法连接。
我使用 gitlab ci/cd 成功地将 nodejs 应用程序部署到 aws elastic beanstalk。但是，当我尝试访问 aws 环境的 link 时，出现 502 bad gateway 错误。我下载了日志文件，下面是我得到的最后日志。
2022/03/20 04:58:57 [error] 723#723: *97 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:02 [error] 723#723: *99 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.73.189, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:12 [error] 723#723: *101 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:17 [error] 723#723: *103 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.73.189, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:27 [error] 723#723: *105 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:32 [error] 723#723: *107 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.73.189, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
2022/03/20 04:59:42 [error] 723#723: *109 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.0.96, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8080/", host: "172.31.13.104"
这种情况出了什么问题，如何解决？
更新
这是我使用的ED平台
Node.js 16 running on 64bit Amazon Linux 2
我现在正在使用 HTTP。
Node.js 默认使用端口 3000，但是 EB uses 8080:
By default, Elastic Beanstalk configures the proxy to forward requests to your application on port 8080.
您的错误表明您的应用程序未使用端口 8080，这可以解释为什么 EB 无法连接。