🐛 docker compose service name 에 '-' 들어가면 내부 통신 오류

backend/discovery/src/main/resources/application.yml

@@ -15,6 +15,6 @@ eureka:
     register-with-eureka: false
     fetch-registry: false
     service-url:
-      defaultZone: http://${spring.security.user.name}:${spring.security.user.password}@localhost:8761/eureka
+      defaultZone: http://${spring.security.user.name}:${spring.security.user.password}@${eureka.instance.hostname:localhost}:8761/eureka
   server:
     peer-node-read-timeout-ms: 10000

config/application.yml

@@ -12,7 +12,7 @@ eureka:
     register-with-eureka: true # eureka 서버에 등록
     fetch-registry: true # 외부 검색 가능
     service-url:
-      defaultZone: http://admin:admin@localhost:8761/eureka
+      defaultZone: http://admin:admin@${eureka.instance.hostname:localhost}:8761/eureka
 
 # file attach location - messages{lang}.properties 도 이 경로에 위치한다.
 file:

docker-compose/app/mesh/docker-compose.yml

@@ -1,52 +1,43 @@
 version: '3'
 services:
-  egov-config:
-    container_name: egov-config
-    hostname: egov-config
+  config:
+    container_name: config
     image: egovframe/msa-edu-config:latest
     ports:
       - "8888:8888"
-    # restart: always
-    # networks: 
-    #   - egov-network
+    restart: always
     volumes:
       - ${HOME}/workspace/egovframe-msa-edu/config:/usr/app/config # volume bind
     environment:
       ENCRYPT_KEY: token_secret
       TZ: Asia/Seoul
 
-  egov-discovery:
-    container_name: egov-discovery
+  discovery:
+    container_name: discovery
     image: egovframe/msa-discovery:latest
     ports:
       - "8761:8761"
-    # restart: always
-    # networks: 
-    #   - egov-network
+    restart: always
     environment:
       SPRING_PROFILES_ACTIVE: default
+      EUREKA_INSTANCE_HOSTNAME: discovery
       TZ: Asia/Seoul
 
-  egov-apigateway:
-    container_name: egov-apigateway
+  apigateway:
+    container_name: apigateway
     image: egovframe/msa-apigateway:latest
     ports:
       - "8000:8000"
     restart: on-failure
-    # networks: 
-    #   - egov-network
     volumes:
       - ${HOME}/workspace:/usr/app/msa-attach-volume
     environment:
-      SPRING_CLOUD_CONFIG_URI: "egov-config:8888"
+      SPRING_CLOUD_CONFIG_URI: http://config:8888
       SPRING_PROFILES_ACTIVE: default
+      EUREKA_INSTANCE_HOSTNAME: discovery
       TZ: Asia/Seoul
     depends_on:
-      - egov-config
-    # links:
-    #   - egov-config
-    # healthcheck:
-    #   test: ["CMD", "curl", "-f", "egov-config:8888"]
+      - config
 
   rabbitmq:
     container_name: rabbitmq
@@ -55,8 +46,6 @@ services:
       - "5672:5672"
       - "15672:15672"
     restart: always
-    # networks: 
-    #   - egov-network
     environment:
       TZ: Asia/Seoul
 
@@ -66,12 +55,10 @@ services:
     ports:
       - "8085:9411"
     restart: always
-    # networks: 
-    #   - egov-network
     environment:
       TZ: Asia/Seoul
 
 networks:
   default:
-    external: true
+    external:
       name: egov-network