nginx connect() failed (111: Connection refused) while connecting to upstream

Question

AWS Elastic Beanstalk &#43; github action으로 CI/CD를 진행하는데, github actions는 잘 동작하는데 Elastic Beanstalk에서 무한 로딩이 걸립니다.nginx의 error.log 파일을 열어보니 아래와 같은 에러 문구가 엄청 많았습니다. [error] 2126#2126: *67 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.96, server: , request: &#34;GET / HTTP/1.1&#34;, upstream: &#34;http://127.0.0.1:8080/&#34;, host: &#34;10.0.2.130&#34;스프링 부트에서 작성한 nginx.conf 파일은 다음과 같습니다.user nginx; error_log /var/log/nginx/error.log warn; pid /var/run/nginx.pid; worker_processes auto; worker_rlimit_nofile 33282; events { use epoll; worker_connections 1024; multi_accept on; } http { include /etc/nginx/mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] &#34;$request&#34; ' '$status $body_bytes_sent &#34;$http_referer&#34; ' '&#34;$http_user_agent&#34; &#34;$http_x_forwarded_for&#34;'; include conf.d/*.conf; map $http_upgrade $connection_upgrade { default &#34;upgrade&#34;; } upstream springboot { server http://127.0.0.1:8080; keepalive 1024; } server { listen 80 default_server; listen [::]:80 default_server; location / { proxy_pass http://springboot; # CORS 관련 헤더 추가 add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS'; add_header 'Access-Control-Allow-Headers' 'Authorization, Content-Type'; proxy_http_version 1.1; proxy_set_header Connection $connection_upgrade; proxy_set_header Upgrade $http_upgrade; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } access_log /var/log/nginx/access.log main; client_header_timeout 60; client_body_timeout 60; keepalive_timeout 60; gzip off; gzip_comp_level 4; # Include the Elastic Beanstalk generated locations include conf.d/elasticbeanstalk/healthd.conf; } }Elastic Beanstalk 환경 속성에서 PORT는 8080으로 설정해놨습니다.

カワウソ · Answer

https://nginx.org/en/docs/http/ngx_http_upstream_module.html#upstream애플리케이션이 8080 포트로 수신중인게 맞다면 upstream 정의시 프로토콜을 포함한 것을 의심해봐야할 것 같네요.문서와 대부분의 예제 상 프로토콜까지 포함하진 않아서요.

nginx connect() failed (111: Connection refused) while connecting to upstream

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