add redis client provider

providers/database/redis/config.go

@@ -0,0 +1,24 @@
+package redis
+
+import (
+	"fmt"
+
+	"github.com/go-redis/redis/v8"
+)
+
+const DefaultPrefix = "Redis"
+
+type Config struct {
+	Host     string
+	Port     uint
+	Password string
+	DB       uint
+}
+
+func (c *Config) ToRedisOptions() *redis.Options {
+	return &redis.Options{
+		Addr:     fmt.Sprintf("%s:%d", c.Host, c.Port),
+		Password: c.Password,
+		DB:       int(c.DB),
+	}
+}

providers/database/redis/redis.go

@@ -0,0 +1,29 @@
+package redis
+
+import (
+	"context"
+
+	"github.com/go-redis/redis/v8"
+	"github.com/pkg/errors"
+	"github.com/rogeecn/atom/container"
+	"github.com/rogeecn/atom/utils/opt"
+)
+
+func Provide(opts ...opt.Option) error {
+	o := opt.New(opts...)
+	var conf Config
+	if err := o.UnmarshalConfig(&conf); err != nil {
+		return err
+	}
+
+	return container.Container.Provide(func() (*redis.Client, error) {
+		client := redis.NewClient(conf.ToRedisOptions())
+
+		_, err := client.Ping(context.Background()).Result()
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to ping")
+		}
+
+		return client, nil
+	}, o.DiOptions()...)
+}

providers/database/redis/todo.go

@@ -1 +0,0 @@
-package redis