Use Dialer in Sentinel failover when available

[vmihailenco]

Fixes #1071

[MonstyB]

Hi, I pulled the updated master but it is still not working.

Custom dialer gets overridden by default dialer.

This is my client declaration :

client = redis.NewFailoverClient(&redis.FailoverOptions{ MasterName: masterName, SentinelAddrs: []string{clusterNode1, clusterNode2, clusterNode3}, Password: password, Dialer: func(ctx context.Context, network, addr string) (net.Conn, error) { // This dialer is not used : must be a bug fmt.Println("Connecting to SOCKS5 prior to this.") dialer, err := proxy.SOCKS5("tcp", socksProxyHost, nil, proxy.Direct) if err != nil { fmt.Println("Oops, cannot connect to the proxy :", err) } return dialer.Dial(network, addr) }, })

I tried to comment out :
opt.Dialer = c.dial in sentinel.go and it finally went through my custom Dialer but unfortunately, "addr" is valued to "FailoverClient" so it can't connect to Redis.