README.md in sidekiq-prometheus-exporter-0.1.15

- old
+ new

@@ -1,8 +1,14 @@
 # Official Docker image
 
-This is an official Docker image for [sidekiq-prometheus-exporter](https://github.com/Strech/sidekiq-prometheus-exporter)
+[0]: https://github.com/Strech/sidekiq-prometheus-exporter
+[1]: https://www.iana.org/assignments/uri-schemes/prov/redis
+[2]: https://github.com/resque/redis-namespace
+[3]: https://github.com/redis/redis-rb/tree/v4.1.3#sentinel-support
+[4]: https://github.com/mperham/sidekiq/issues/4479
+
+This is an official Docker image for [sidekiq-prometheus-exporter][0]
 gem.
 
 It combines some approaches which were already published as images by other
 devs and at the same time brings more flexibility for the stock configuration
 and applies recommended Docker best practices.
@@ -11,28 +17,31 @@
 
 ## Supported ENVs
 
 Required
 
-- `REDIS_URL` - [RFC 3986 generic URI][rfc3986], exclusive with `REDIS_HOST`
+- `REDIS_URL` - [RFC 3986 generic URI][1], exclusive with `REDIS_HOST`
 - `REDIS_HOST` - a Redis host, exclusive with `REDIS_URL` (default: `localhost`)
 
 Optional
 
 - `REDIS_PORT` - a Redis port (default: `6379`)
 - `REDIS_PASSWORD` - a Redis password (if you need one)
 - `REDIS_DB_NUMBER` - a Redis database number (default: `0`)
-- `REDIS_NAMESPACE` - a Redis [namespace][namespace] name (if you have separated sidekiq)
+- `REDIS_NAMESPACE` - a Redis [namespace][2] name (if you have separated sidekiq)
 - `REDIS_SENTINELS` - a list of comma separated Redis urls (like `REDIS_URL`, but for sentinels)
-- `REDIS_SENTINEL_ROLE` - a role within the [sentinel][sentinel] to connect (default: `master`)
+- `REDIS_SENTINEL_ROLE` - a role within the [sentinel][3] to connect (default: `master`)
+- `REDIS_DISABLE_CLIENT_ID` - a flag to disable `CLIENT` command in [Sidekiq][4]
 
 :bulb: Note, that `REDIS_URL` and `REDIS_HOST` are exclusive. Since `REDIS_HOST` is more
 atomic value it will be checked after `REDIS_URL`.
 
 :bulb: `REDIS_SENTINELS` will be parsed with `URI`, because of that it's
 mandatory for them to be formatted with protocol `redis://...`.
 
+:bulb: `REDIS_DISABLE_CLIENT_ID` might be required if a SaaS Redis provider is being used.
+
 ## Examples
 
 If you don't have a running Redis instance, you can quickly spin an empty to
 practice.
 
@@ -47,9 +56,5 @@
              --link redis-instance \
              -p 9292:9292 \
              -e REDIS_URL=redis://redis-instance \
              strech/sidekiq-prometheus-exporter
 ```
-
-[rfc3986]: https://www.iana.org/assignments/uri-schemes/prov/redis
-[namespace]: https://github.com/resque/redis-namespace
-[sentinel]: https://github.com/redis/redis-rb/tree/v4.1.3#sentinel-support