fix: support redis sentinel in migrations (#394)

* feat: support redis sentinel in migrations
* chore: add prometheus / healthcheck support

Author: afoninsky

src/configs/core.js

@@ -50,6 +50,7 @@ exports.plugins = [
   'amqp',
   'redisCluster',
   'http',
+  'prometheus',
 ];
 
 /**

src/configs/router.js

@@ -34,6 +34,7 @@ exports.router = {
     directory: path.resolve(__dirname, '../actions'),
     prefix: 'users',
     transports: [ActionTransport.amqp, ActionTransport.http, ActionTransport.internal],
+    enabledGenericActions: ['health'],
   },
   extensions: {
     enabled: ['preRequest', 'postRequest', 'postValidate', 'preResponse'],

src/migrations/referrals-users-ids/index.js

@@ -4,9 +4,14 @@ const { USERS_REFERRAL_INDEX } = require('../../constants.js');
 const { getUserId } = require('../../utils/userData');
 
 /**
- *
+ * Return master node in case of redisCluster to be able to use
+ * specific commands like `keys`. We can use usual redis instance in
+ * other cases.
  */
 function getRedisMasterNode(redis, config) {
+  if (!config.plugins.includes('redisCluster')) {
+    return redis;
+  }
   const { keyPrefix } = config.redis.options;
   const slot = calcSlot(keyPrefix);
   const nodeKeys = redis.slots[slot];