无法使用NestJS连接Docker中的Redis

Question

我正在尝试从 NestJS 应用程序连接到在 Docker 容器中运行的 Redis 实例。但是，我在使用 URL 进行 Redis 连接时遇到了连接问题。当我使用主机和端口配置连接时，它工作成功。此外，当我在 Docker 外部的本地计算机上运行应用程序时，相同的 URL 连接工作正常。

app.module.ts

import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';

import * as redisStore from 'cache-manager-ioredis';
import { CacheModule } from '@nestjs/cache-manager';
import { RedisClientOptions } from 'redis';

@Module({
  imports: [
    CacheModule.registerAsync<RedisClientOptions>({
      isGlobal: true,
      useFactory: async () => {
        return {
          store: redisStore,
          url: 'redis://:@redis:6379/0',
          // host: 'redis',
          // port: 6379,
        };
      },
    }),
  ],
  controllers: [AppController],
  providers: [AppService],
})
export class AppModule {}

docker-compose.yml

services:
  redis:
    image: redis:alpine3.20
    restart: always
    ports:
      - 6378:6379
    volumes:
      - ./volumes/redis/data:/data

  app:
    build:
      context: .
      dockerfile: Dockerfile.dev
      target: release
    ports:
      - 2080:3000
    entrypoint: ['yarn', 'start:prod']

dependencies

"@nestjs/cache-manager": "^2.2.2",
"@nestjs/common": "^10.0.0",
"@nestjs/config": "^3.2.3",
"@nestjs/core": "^10.0.0",
"@nestjs/jwt": "^10.2.0",
"@nestjs/mapped-types": "*",
"@nestjs/platform-express": "^10.0.0",
"@nestjs/typeorm": "^10.0.2",
"cache-manager": "^5.7.6",
"cache-manager-ioredis": "^2.1.0",
"class-transformer": "^0.5.1",
"class-validator": "^0.14.1",
"pg": "^8.12.0",
"redis": "^4.7.0",
"reflect-metadata": "^0.2.0",
"rxjs": "^7.8.1",
"typeorm": "^0.3.20"

我想通过url连接redis

Answer 1

Docker 编写 yml 文件

version: '3.3'
name: 'docker'

services:
  redis:
    image: redis:6.0.7
    command: redis-server --requirepass Admin12
    ports:
      - 6380:6379
    volumes:
      - ./redis.conf:/usr/local/etc/redis/redis.conf

确保安装了

"cache-manager-redis-store": "^2.0.0"

import { CacheModule } from '@nestjs/cache-manager';
import { Module } from '@nestjs/common';
import * as redisStore from 'cache-manager-redis-store';
import { CacheStoreService } from './cache.service';

@Module({
  imports: [
    CacheModule.registerAsync({
      useFactory: () => ({
        store: redisStore,
        host: 'localhost',
        port: 6380,
        password: 'yourpassword',
      }),
    }),
  ],
  providers: [CacheStoreService],
  exports: [CacheStoreService],
})
export class CacheStoreModule {}

如果您想使用 URL 进行连接

import { CacheModule } from '@nestjs/cache-manager';
import { Module } from '@nestjs/common';
import * as redisStore from 'cache-manager-redis-store';
import { CacheStoreService } from './cache.service';

@Module({
  imports: [
    CacheModule.registerAsync({
      useFactory: () => ({
        store: redisStore,
        // host: 'localhost',
        // port: 6380,
        // password: 'yourpassword',
        url: 'redis://default:yourpassword@localhost:6380',
      }),
    }),
  ],
  providers: [CacheStoreService],
  exports: [CacheStoreService],
})
export class CacheStoreModule {}