✨ add redis database selection (#100)

* ✨ add redis database selection

* 📝 update docs

* 📝 readme

pkg/cache/cache.go

@@ -82,9 +82,9 @@ type Client struct {
 }
 
 // New Initialize cache client.
-func (client *Client) New(isRedis bool, host string, pass string) {
+func (client *Client) New(isRedis bool, host, pass, database string) {
 	if isRedis {
-		redis.Init(host, pass)
+		redis.Init(host, pass, database)
 		client.cache = &redisCache{}
 	} else {
 		client.cache = &localCache{}

pkg/configuration/configuration.go

@@ -57,6 +57,7 @@ type Config struct {
 	RedisCacheHost                           string   `json:"redisCacheHost,omitempty"`
 	RedisCachePassword                       string   `json:"redisCachePassword,omitempty"`
 	RedisCachePasswordFile                   string   `json:"redisCachePasswordFile,omitempty"`
+	RedisCacheDatabase                       string   `json:"redisCacheDatabase,omitempty"`
 }
 
 func contains(source []string, target string) bool {
@@ -86,6 +87,7 @@ func New() *Config {
 		RedisCacheEnabled:             false,
 		RedisCacheHost:                "redis:6379",
 		RedisCachePassword:            "",
+		RedisCacheDatabase:            "",
 	}
 }