docker - spring boot - nginx 접속 질문 입니다 고수님들 도움 부탁드립니다

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안녕하세요 spring boot와 Nginx를 docker-compose를 사용하여 컨테이너화를 시도 하엿습니다.80포트를 이용하여 localhost/api/test 를 입력했을때 &#34;안녕하세요&#34; 를 리턴 받는 간단한 api를 구성하였습니다.하지만 localhost/api/test 를 입력하면 502 Bad Gateway 오류가 발생하며터미널 에서는 이런 에러가 발생합니다. &#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;demo-nginx-1 | 2023/12/09 01:43:12 [error] 28#28: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.65.1, server: , request: &#34;GET /api/test HTTP/1.1&#34;, upstream: &#34;http://127.0.0.1:8080/api/test&#34;, host: &#34;localhost&#34;demo-nginx-1 | 2023/12/09 01:43:12 [warn] 28#28: *1 upstream server temporarily disabled while connecting to upstream, client: 192.168.65.1, server: , request: &#34;GET /api/test HTTP/1.1&#34;, upstream: &#34;http://127.0.0.1:8080/api/test&#34;, host: &#34;localhost&#34;demo-nginx-1 | 2023/12/09 01:43:12 [error] 28#28: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 192.168.65.1, server: , request: &#34;GET /api/test HTTP/1.1&#34;, upstream: &#34;http://127.0.0.1:8080/api/test&#34;, host: &#34;localhost&#34;demo-nginx-1 | 2023/12/09 01:43:12 [warn] 28#28: *1 upstream server temporarily disabled while connecting to upstream, client: 192.168.65.1, server: , request: &#34;GET /api/test HTTP/1.1&#34;, upstream: &#34;http://127.0.0.1:8080/api/test&#34;, host: &#34;localhost&#34;demo-nginx-1 | 192.168.65.1 - - [09/Dec/2023:01:43:12 &#43;0000] &#34;GET /api/test HTTP/1.1&#34; 502 559 &#34;-&#34; &#34;Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36&#34; &#34;-&#34;demo-nginx-1 | 192.168.65.1 - - [09/Dec/2023:01:43:13 &#43;0000] &#34;GET /api/test HTTP/1.1&#34; 502 559 &#34;-&#34; &#34;Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36&#34; &#34;-&#34;demo-nginx-1 | 2023/12/09 01:43:13 [error] 28#28: *1 no live upstreams while connecting to upstream, client: 192.168.65.1, server: , request: &#34;GET /api/test HTTP/1.1&#34;, upstream: &#34;http://localhost/api/test&#34;, host: &#34;localhost&#34;demo-nginx-1 | 2023/12/09 01:43:13 [error] 28#28: *1 no live upstreams while connecting to upstream, client: 192.168.65.1, server: , request: &#34;GET /favicon.ico HTTP/1.1&#34;, upstream: &#34;http://localhost/favicon.ico&#34;, host: &#34;localhost&#34;, referrer: &#34;http://localhost/api/test&#34;demo-nginx-1 | 192.168.65.1 - - [09/Dec/2023:01:43:13 &#43;0000] &#34;GET /favicon.ico HTTP/1.1&#34; 502 559 &#34;http://localhost/api/test&#34; &#34;Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36&#34; &#34;-&#34;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;구글 검색해서 여러 시도를 해보았지만 여전히 에러는 고쳐지지 않았습니다.도커 파일 구성 은 이렇습니다.&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;FROM openjdk:17-jdk-alpineARG JAR_FILE&#61;/build/libs/demo-0.0.1-SNAPSHOT.jarCOPY ${JAR_FILE} /app.jarENTRYPOINT [&#34;java&#34;,&#34;-jar&#34;, &#34;/app.jar&#34;]FROM nginx:latestCOPY /nginx/default.conf /etc/nginx/conf.d/default.confCMD [&#34;nginx&#34;, &#34;-g&#34;, &#34;daemon off;&#34;]&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;도커 컴포즈 구성을 이렇습니다&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;version: '3.8'services: back: build: context: . dockerfile: Dockerfile expose: - 8080 nginx: build: . image: nginx:app ports: - 80:80 depends_on: - back&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;nginx의 default.conf 는 이렇습니다&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;server { listen 80 default_server; location / { proxy_pass http://localhost:8080; proxy_set_header X-Real_IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $host; proxy_set_header X-Forwarded-Proto $scheme; proxy_connect_timeout 300s; proxy_read_timeout 600s; proxy_send_timeout 600s; proxy_buffers 8 16k; proxy_buffer_size 32k; }}&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;혹시 원인혹은 해결 방법을 아시는분 도움을 정중히 부탁드립니다. (꾸벅)

カワウソ · Answer

도커 컨테이너는 격리되는 개념으로 좀 더 학습해보시고 127.0.0.1 또는 localhost로 접근하는게 아니라 서비스명으로 통신하시면 됩니다.

docker - spring boot - nginx 접속 질문 입니다 고수님들 도움 부탁드립니다

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