BullModule.forRoot({
  redis: {
    sentinels: [
      {
        host: process.env.redis_senti,
        port: Number(process.env.redis_senti_port),
      },
    ],
    name: 'mymaster',
    password: redis_pass,
    sentinelPassword: redis_pass,
    maxRetriesPerRequest: 100,
  },
}),

Hi, I finally ended up with this configuration.