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redis.go
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redis.go
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// Copyright 2023 The Ryan SU Authors (https://github.com/suyuan32). All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"context"
"crypto/tls"
"github.com/pkg/errors"
"github.com/redis/go-redis/v9"
"github.com/zeromicro/go-zero/core/logx"
"strings"
"time"
)
// A RedisConf is a redis config.
type RedisConf struct {
Host string `json:",env=REDIS_HOST"`
Db int `json:",default=0,env=REDIS_DB"`
Username string `json:",optional,env=REDIS_USERNAME"`
Pass string `json:",optional,env=REDIS_PASSWORD"`
Tls bool `json:",optional,env=REDIS_TLS"`
Master string `json:",optional,env=REDIS_MASTER"`
}
func (r RedisConf) Validate() error {
if len(r.Host) == 0 {
return errors.New("host cannot be empty")
}
return nil
}
func (r RedisConf) NewUniversalRedis() (redis.UniversalClient, error) {
err := r.Validate()
if err != nil {
return nil, err
}
opt := &redis.UniversalOptions{
Addrs: strings.Split(r.Host, ","),
DB: r.Db,
Password: r.Pass,
Username: r.Username,
}
if r.Master != "" {
opt.MasterName = r.Master
}
if r.Tls {
opt.TLSConfig = &tls.Config{MinVersion: tls.VersionTLS12}
}
rds := redis.NewUniversalClient(opt)
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
err = rds.Ping(ctx).Err()
if err != nil {
return nil, err
}
return rds, nil
}
func (r RedisConf) MustNewUniversalRedis() redis.UniversalClient {
rds, err := r.NewUniversalRedis()
logx.Must(err)
return rds
}