Keycloak docker 服务无法连接到数据库

Question

我是 docker 的新手，我想用 docker-compose 启动一个 keycloak 容器。我正在使用 mariadb 并且数据库成功启动。但是当启动 keycloak 容器时它给出了这个错误。

Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to address=(host=project-db)(port=3308)(type=master) : Socket fail to connect to host:project-db, port:3308. Connection refused (Connection refused) at org.mariadb.jdbc//org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:241) at org.mariadb.jdbc//org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1243) at org.mariadb.jdbc//org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:622) at org.mariadb.jdbc//org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:142) at org.mariadb.jdbc//org.mariadb.jdbc.Driver.connect(Driver.java:86) at org.jboss.ironjacamar.jdbcadapters@1.4.20.Final//org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory.createLocalManagedConnection(LocalManagedConnectionFactory.java:321) ... 57 more Caused by: java.sql.SQLNonTransientConnectionException: Socket fail to connect to host:project-db, port:3308. Connection refused (Connection refused) at org.mariadb.jdbc//org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:241) at org.mariadb.jdbc//org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.connException(ExceptionMapper.java:87) at org.mariadb.jdbc//org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createSocket(tocol.java:218) at org.mariadb.jdbc//org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createConnection(AbstractConnectProtocol.java:474) at org.mariadb.jdbc//org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1238) ... 61 more Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399) at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242) at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224) at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403) at java.base/java.net.Socket.connect(Socket.java:609) at org.mariadb.jdbc//org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.createSocket(AbstractConnectProtocol.java:213) ... 63 more

这是我的 docker-撰写。

version: "3.6"
services:
  project-db:
    container_name: project-maria-db
    image: mariadb:10.5.8-focal
    restart: always
    ports:
      - 3308:3306
    volumes:
      - /project/db:/data/db
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=project
      - MYSQL_USER=user
      - MYSQL_PASSWORD=password

  project-keycloak:
    container_name: project-keycloak
    image: quay.io/keycloak/keycloak:10.0.1
    restart: always
    ports:
      - 8180:8080
    environment:
      PROXY_ADDRESS_FORWARDING: "true"
      DB_VENDOR: mariadb
      DB_ADDR: project-db
      DB_PORT: 3308
      DB_DATABASE: project_keycloak
      DB_USER: user
      DB_PASSWORD: password
      KEYCLOAK_USER: admin
      KEYCLOAK_PASSWORD: admin
    depends_on:
      - project-db

有人可以帮我解决这个问题吗？

Answer 1

您需要添加网络才能将它们合并到同一网络中。

version: "3.6"
services:
  project-db:
    container_name: project-maria-db
    image: mariadb:10.5.8-focal
    restart: always
    ports:
      - 3308:3306
    volumes:
      - /project/db:/data/db
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_DATABASE=project
      - MYSQL_USER=user
      - MYSQL_PASSWORD=password
    networks:
      - app-network

  project-keycloak:
    container_name: project-keycloak
    image: quay.io/keycloak/keycloak:10.0.1
    restart: always
    ports:
      - 8180:8080
    environment:
      PROXY_ADDRESS_FORWARDING: "true"
      DB_VENDOR: mariadb
      DB_ADDR: project-db
      DB_PORT: 3308
      DB_DATABASE: project_keycloak
      DB_USER: user
      DB_PASSWORD: password
      KEYCLOAK_USER: admin
      KEYCLOAK_PASSWORD: admin
    depends_on:
      - project-db
    networks:
      - app-network
networks:
  app-network:
    driver: bridge

Keycloak docker 服务无法连接到数据库

Keycloak docker service cannot connect to database

containers

mariadb

docker

keycloak

docker-compose