How can I connect the eureka server and eureka client using docker compose? I have simple client with application.yml where configured the configurations for connection to eureka server:

spring:
  jackson:
    serialization:
      fail-on-empty-beans: false
  application:
    name: usersMicro
  jpa:
    show-sql: true
    database: POSTGRESQL
    hibernate:
      ddl-auto: create-drop
  datasource:
    url: jdbc:postgresql://localhost:5432/my_test_db
    username: root
    password: admin
    driver-class-name: org.postgresql.Driver
server:
  port: 8089
#eureka:
#  client:
#    serviceURL:
#      defaultZone: http://localhost:8761/eureka/

eureka:
  client:
    serviceURL:
      defaultZone: http://localhost:8761/eureka/
    service-url:
      zone1: http://localhost:8761/eureka/
    region: region-1
    availability-zones:
      region-1: zone1

the standard eureka client Dockerfile:

    FROM ubuntu:latest
    LABEL authors="user"
    
    ENTRYPOINT ["top", "-b"]
    
    FROM openjdk:17-jdk-slim
    VOLUME /tmp
    COPY target/usersMicro-1.jar user-service.jar
    ENTRYPOINT ["java","-jar","/user-service.jar"]

and docker-compose.yml file:

version: "3.9"
services:
  user-service:
    container_name: user-service
    image: user-service
    restart: unless-stopped
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "8089:8089"
    networks:
      - postgres
networks:
  postgres:
    name: shared-network
    external: true

The eureka server is almost the same
the server eureka application.yml is:

spring:
  application:
    name: eureka_server
server:
  port:
    - "8761:8761"

eureka:
  hostname: localhost
  client:
    register-with-eureka: false
    fetch-registry: false

eureka server Dockerfile is the same, except lines

    COPY target/eureka_server-1.jar eureka-server.jar
    ENTRYPOINT ["java","-jar","/eureka-server.jar"]

and eureka server docker-compose.yml file:

version: '3.9'
services:
  # EUREKA-SERVER CONTAINER............................................
  eureka_server-service:
    container_name: eureka_server
    image: eureka_server
    restart: on-failure
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "8761:8761"
    networks:
      - postgres
# NETWORKS CONFIGURATION....................................................
networks:
  postgres:
    name: shared-network
    external: true

My docker-compose files for server and client are in different directories and may be that is the problem, that they should be specified in the same file, but I was able to connect my microservices with DB which is in a strict different drive.

If I start the server and client out of docker, from IDE, I am able to see the connection in eureka web interface, but if docker – in logs, I receive the error that connection refused:
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server or 2024-08-06T13:28:24.835500447Z Caused by: org.apache.hc.client5.http.HttpHostConnectException: Connect to http://localhost:8761 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused

what I miss in these configurations ?