feat: add support for REDIS_DB environment variable (#94)

ejhayes · Sep 14, 2022 · 8dec7db · 8dec7db
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diff --git a/README.md b/README.md
@@ -65,6 +65,7 @@ The following environment variables are supported:
 | `REDIS_HOST`                             | x        | `null`         | Redis host (**IMPORTANT** must be same redis instance that stores bull jobs!)                                                                                            |
 | `REDIS_PORT`                             | x        | `null`         | Redis port                                                                                                                                                               |
 | `REDIS_PASSWORD`                         |          | `null`         | Redis password                                                                                                                                                           |
+| `REDIS_DB`                               |          | `0`            | Redis database index to use (see `options.db` from [docs](https://ioredis.readthedocs.io/en/latest/API/#new-redisport-host-options))                                     |
 | `UI`                                     |          | `bull-board`   | UI to use (supported: `arena`, `bull-board`)                                                                                                                             |
 | `BULL_WATCH_QUEUE_PREFIXES`              |          | `bull`         | Bull prefixes to monitor (globs like `prefix*` are supported)                                                                                                            |
 | `BULL_COLLECT_QUEUE_METRICS_INTERVAL_MS` |          | `60000`        | How often queue metrics are gathered                                                                                                                                     |

diff --git a/src/bull/bull.module.ts b/src/bull/bull.module.ts
@@ -23,6 +23,7 @@ import { BullMQMetricsFactory } from './bullmq-metrics.factory';
               host: configService.config.REDIS_HOST,
               password: configService.config.REDIS_PASSWORD,
               port: configService.config.REDIS_PORT,
+              db: configService.config.REDIS_DB,
               enableReadyCheck: true,
               reconnectOnError: () => true,
             };

diff --git a/src/config/config.service.ts b/src/config/config.service.ts
@@ -23,6 +23,10 @@ export class ConfigService {
      * to manually set keyspace notifications)
      */
     REDIS_CONFIGURE_KEYSPACE_NOTIFICATIONS: bool({ default: true }),
+    /**
+     * Redis database number
+     */
+    REDIS_DB: num({ default: 0 }),
     /**
      * Redis host to fetch queues from
      */