Error: connect ETIMEDOUT

[jeffminsungkim]

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Expected Behavior

AWS ElasticCache connection should be established without having an issue.

Current Behavior

AWS Security Group's inbound rule is open to public (0.0.0.0).

RedisModule.forRootAsync({
    imports: [ConfigModule],
    inject: [ConfigService],
    useFactory: (config: ConfigService) => ({
      config: {
        host: 'aws-elastic-cache-url',
        port: config.get('REDIS_PORT') || 6379,
        password: config.get('REDIS_PASSWORD'),
      },
    }),
  }),

I'm facing the following error.

[Nest] 77739  - 03/16/2023, 5:50:05 PM   ERROR [RedisModule] default: connect ETIMEDOUT +10056ms
Error: connect ETIMEDOUT
    at Socket.<anonymous> (/Users/x/Projects/workspace/backend/node_modules/ioredis/built/Redis.js:170:41)
    at Object.onceWrapper (node:events:627:28)
    at Socket.emit (node:events:513:28)
    at Socket._onTimeout (node:net:562:8)
    at listOnTimeout (node:internal/timers:564:17)
    at processTimers (node:internal/timers:507:7)

If I try with my localhost redis, it works fine.

Possible Solution

Steps to Reproduce (for bugs)

Context

Your Environment

• Version used: 9.0.5
• NestJS version: 9
• Node.js version: 18.12
• Operating System and version (macOS, Windows, Linux): macOS
• Link to your project:

[jeffminsungkim]

I've heard that the Elasticache is a service designed to be used internally to a specific VPC. Is this the possible reason why the connection issue occurred?