SonarQube cannot access PostgresDB - postgresql

Question

I am trying to set up SonarQube self-hosted using docker with docker-compose. To use SonarQube via HTTPS I am using nginx as reverse proxy and the jrcs/letsencrypt-nginx-proxy-companion to handle the SSL-Certificate.
Now I have configured SonarQube using the following docker-compose.yml:
version: '3'
networks:
ext:
int:
volumes:
certs:
vhosts:
html:
postgresql_data:
postgresql:
sonarqube_data:
sonarqube_extensions:
sonarqube_logs:
services:
nginxproxy:
image: jwilder/nginx-proxy:alpine
container_name: nginxproxy
hostname: nginxproxy
restart:
unless-stopped
networks:
- ext
volumes:
- certs:/etc/nginx/certs:ro
- vhosts:/etc/nginx/vhost.d
- html:/usr/share/nginx/html
- /var/run/docker.sock:/tmp/docker.sock:ro
- ./config/my_proxy.conf:/etc/nginx/conf.d/myproxy.conf:ro
ports:
- 80:80
- 443:443
labels:
- com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy
environment:
- SSL_POLICY=Mozilla-Intermediate
nginxproxy_comp:
image: jrcs/letsencrypt-nginx-proxy-companion
container_name: nginxproxy_comp
hostname: nginxproxy_comp
restart:
unless-stopped
depends_on:
- nginxproxy
networks:
- ext
volumes:
- certs:/etc/nginx/certs
- vhosts:/etc/nginx/vhost.d
- html:/usr/share/nginx/html
- /var/run/docker.sock:/var/run/docker.sock:ro
sonarqube:
image: sonarqube:community
container_name: sonarqube
hostname: sonarqube
depends_on:
- db
restart:
unless-stopped
volumes:
- sonarqube_data:/opt/sonarqube/data
- sonarqube_logs:/opt/sonarqube/logs
- sonarqube_extensions:/opt/sonarqube/extensions
environment:
- SONAR_JDBC_URL=jdbc:postgresql://localhost:5432/sonarqube
- SONAR_JDBC_USER=sonarqube
- SONAR_JDBC_PASSWORD=sonarqube
networks:
- int
ports:
- 9000:9000
db:
image: postgres:12
container_name: db
hostname: db
networks:
- int
ports:
- 5432:5432
environment:
- POSTGRES_USER=sonarqube
- POSTGRES_PASSWORD=sonarqube
volumes:
- postgresql:/var/lib/postgresql
- postgresql_data:/var/lib/postgresql/data
restart:
unless-stopped
Now when I try to start docker-compose, SonarQube is giving me the following Error:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jdk.internal.loader.ClassLoaders$AppClassLoader#277050dc-org.sonar.db.DefaultDatabase': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Fail to connect to database
org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
Can anyone please tell me what i did wrong?

Answer 1

What I see here is the incorrect JDBC URL. It must below
SONARQUBE_JDBC_URL=jdbc:postgresql://db:5432/sonarqube
Since you have network between containers DB accessible via db
Also, under SonarQube container add below as well
privileged: true
Check one of my sample project in GitHub
https://github.com/shamith234/sonarqube-9.5-postgres-docker/blob/master/docker-compose.yml