springboot dockerfile dockercompose postgres error "localhost:5432 refused" - spring

Question

I have problem with my dockerfile and my docker-compose connect to my postgres (container). this is my error
Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
this my properties
spring.datasource.url=jdbc:postgresql://postgres-db:5432/offer
spring.datasource.username=postgres
spring.datasource.password=postgres
spring.datasource.driverClassName=org.postgresql.Driver
spring.jpa.hibernate.ddl-auto=create-drop
logging.level.org.hibernate.sql=DEBUG
logging.level.org.hibernate.type.descriptor.sql=trace
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
#spring.jpa.hibernate.ddl-auto=none
springdoc.api-docs.path=/api-docs
#server.port=8085
spring.devtools.restart.log-condition-evaluation-delta=false
my Dockerfile
FROM openjdk:8-jdk-alpine
EXPOSE 8085
VOLUME /tmp
ADD target/weShareJob-service-offer-0.0.1-SNAPSHOT.jar offer.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-Dspring.profiles.active=container", "-jar", "offer.jar"]
docker-compose
version: "3"
services:
postgres-db:
image: postgres:latest
network_mode: bridge
container_name: postgres-db
volumes:
- postgres-data:/var/lib/postgresql/data
expose:
- 5432
ports:
- 5432:5432
environment:
- POSTGRES_PASSWORD=postgres
- POSTGRES_USER=postgres
- POSTGRES_DB=offer
restart: unless-stopped
# APP*****************************************
offer:
image: offer:latest
network_mode: bridge
container_name: offer
expose:
- 8085
ports:
- 8085:8085
restart: unless-stopped
depends_on:
- postgres-db
links:
- postgres-db
volumes:
postgres-data:
i don't uderstand why my error say i try connect "localhost:5432" or i passed postgres-db in my url. i have check other answer of question similair of me.
thanks for help :)

Answer 1

i see you are starting your application with
-Dspring.profiles.active=container
so i wonder how your application properties looks for the profile container?
are you sure the container profile gets started (did you check in the output?)