使用Docker Compose在端口3307上运行MySQL

Question

我试图在一台机器上创建多个Prisma数据库服务.我无法使用Docker Compose在3306以外的端口上创建MySQL数据库.

泊坞窗,compose.yml

version: '3'
services:
hackernews:
    image: prismagraphql/prisma:1.8
    restart: always
    ports:
    - "${CLIENT_PORT}:${INTERNAL_PORT}"
    environment:
    PRISMA_CONFIG: |
        port: $INTERNAL_PORT
        managementApiSecret: $PRISMA_MANAGEMENT_API_SECRET
        databases:
        default:
            connector: mysql
            host: mysql
            port: $SQL_INTERNAL_PORT
            user: root
            password: $SQL_PASSWORD
            migrations: true
mysql:
    image: mysql:5.7
    restart: always
    environment:
    MYSQL_ROOT_PASSWORD: $SQL_PASSWORD
    volumes:
    - ./custom/:/etc/mysql/conf.d/my.cnf
    - mysql:/var/lib/mysql
volumes:
mysql:

泊坞窗,compose.override.yml

version: '3'
services:
mysql:
    expose:
    - "${SQL_INTERNAL_PORT}"
    ports:
    - "${SQL_CLIENT_PORT}:${SQL_INTERNAL_PORT}"

错误:

hackernews_1  | Exception in thread "main" java.sql.SQLTransientConnectionException: database - Connection is not available, request timed out after 5008ms.
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:548)
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:186)
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:145)
hackernews_1  |     at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:83)
hackernews_1  |     at slick.jdbc.hikaricp.HikariCPJdbcDataSource.createConnection(HikariCPJdbcDataSource.scala:18)
hackernews_1  |     at slick.jdbc.JdbcBackend$BaseSession.<init>(JdbcBackend.scala:439)
hackernews_1  |     at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:47)
hackernews_1  |     at slick.jdbc.JdbcBackend$DatabaseDef.createSession(JdbcBackend.scala:38)
hackernews_1  |     at slick.basic.BasicBackend$DatabaseDef.acquireSession(BasicBackend.scala:218)
hackernews_1  |     at slick.basic.BasicBackend$DatabaseDef.acquireSession$(BasicBackend.scala:217)
hackernews_1  |     at slick.jdbc.JdbcBackend$DatabaseDef.acquireSession(JdbcBackend.scala:38)
hackernews_1  |     at slick.basic.BasicBackend$DatabaseDef$$anon$2.run(BasicBackend.scala:239)
hackernews_1  |     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
hackernews_1  |     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
hackernews_1  |     at java.lang.Thread.run(Thread.java:748)
hackernews_1  | Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to address=(host=mysql)(port=3307)(type=master) : Connection refused (Connection refused)
hackernews_1  |     at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:161)
hackernews_1  |     at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.connException(ExceptionMapper.java:79)
hackernews_1  |     at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1040)
hackernews_1  |     at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:490)
hackernews_1  |     at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:144)
hackernews_1  |     at org.mariadb.jdbc.Driver.connect(Driver.java:90)
hackernews_1  |     at slick.jdbc.DriverDataSource.getConnection(DriverDataSource.scala:101)
hackernews_1  |     at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341)
hackernews_1  |     at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:193)
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:430)
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool.access$500(HikariPool.java:64)
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:570)
hackernews_1  |     at com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator.call(HikariPool.java:563)
hackernews_1  |     at java.util.concurrent.FutureTask.run(FutureTask.java:266)

码头工人

CONTAINER ID        IMAGE                      COMMAND                  CREATED             STATUS                                  PORTS                              NAMES
ab721996469d        mysql:5.7                  "docker-entrypoint.s…"   42 minutes ago      Up 55 seconds                           3306/tcp, 0.0.0.0:3307->3307/tcp   two_mysql_1
7aab98e2b8d7        prismagraphql/prisma:1.8   "/bin/sh -c /app/sta…"   2 hours ago         Restarting (1) Less than a second ago                                      two_hackernews_1

.ENV

SQL_PASSWORD=myuniquepassword
SQL_INTERNAL_PORT=3307
SQL_CLIENT_PORT=3307

Answer 1

就我而言，在添加之前，我无法更改 Mysql 端口而不是 3306 MYSQL_TCP_PORT

所以示例：

version: '3.8'

volumes:
  mysql_data:
    driver: local

services:
  mysql:
    image: mysql:5.7
    volumes:
      - mysql_data:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: keycloak
      MYSQL_USER: keycloak
      MYSQL_PASSWORD: password
      MYSQL_TCP_PORT: 3307
    ports:
    - 3307:3307
    expose:
      - 3307
  keycloak:
    image: quay.io/keycloak/keycloak:latest
    environment:
      DB_VENDOR: MYSQL
      DB_ADDR: mysql
      DB_DATABASE: keycloak
      DB_USER: keycloak
      DB_PASSWORD: password
      DB_PORT: 3307
      KEYCLOAK_USER: admin
      KEYCLOAK_PASSWORD: Pa55w0rd
      # Uncomment the line below if you want to specify JDBC parameters. The parameter below is just an example, and it shouldn't be used in production without knowledge. It is highly recommended that you read the MySQL JDBC driver documentation in order to use it.
      #JDBC_PARAMS: "connectTimeout=30000"
    ports:
      - 8040:8080
    depends_on:
      - mysql

Answer 2

变量SQL_INTERNAL_PORT可能3307有价值。您需要将其更改为3306。

另外，您可以删除

    expose:
    - "${SQL_INTERNAL_PORT}"

线。Mysql已经公开了3306端口。

所有进入群集的应用程序都使用内部端口（在mysql情况下为3306）。外部端口（在部分端口中）仅用于外部字通信。

如果要拥有多个数据库，则需要更改docker-compose这样的内容：

version: '3'
services:
hackernews:
    image: prismagraphql/prisma:1.8
    restart: always
    ports:
    - "${CLIENT_PORT}:${INTERNAL_PORT}"
    environment:
    PRISMA_CONFIG: |
        port: $INTERNAL_PORT
        managementApiSecret: $PRISMA_MANAGEMENT_API_SECRET
        databases:
        default:
            connector: mysql
            host: mysql_first
            port: 3306
            user: root
            password: $SQL_PASSWORD
            migrations: true
        second:
            connector: mysql
            host: mysql_second
            port: 3306
            user: root
            password: $SQL_PASSWORD
            migrations: true
mysql_first:
    image: mysql:5.7
    restart: always
    environment:
    MYSQL_ROOT_PASSWORD: $SQL_PASSWORD
    ports:
     - 3307:3306
    volumes:
    - ./custom/:/etc/mysql/conf.d/my.cnf
    - mysql:/var/lib/mysql

 mysql_second:
    image: mysql:5.7
    restart: always
    environment:
    ports:
     - 3308:3306
    MYSQL_ROOT_PASSWORD: $SQL_PASSWORD