/
redis.go
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/
redis.go
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// /*
// MIT License
//
// # Copyright (c) 2024 Praromvik
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// */
package client
import (
"bytes"
"context"
"fmt"
"github.com/go-redis/redis/v8"
"os"
"os/exec"
)
func ConnectToRedis() (*redis.Client, error) {
err := runRedisProcess()
if err != nil {
return nil, err
}
rClient := redis.NewClient(&redis.Options{
Addr: "localhost:6333",
Password: "", // no password set
DB: 0, // use default DB
})
return rClient, nil
}
func runRedisProcess() error {
ps := os.Getenv("REDIS_PROCESS_NAME")
_ = exec.Command("docker", "stop", ps).Run()
_ = exec.Command("docker", "rm", ps).Run()
_ = listDockerProcesses()
volume := fmt.Sprintf("%s:/data", os.Getenv("REDIS_VOLUME_PATH"))
port := fmt.Sprintf("%s:6379", os.Getenv("REDIS_PORT"))
logLevel := fmt.Sprintf("--loglevel %s", os.Getenv("REDIS_LOG_LEVEL"))
cmd := exec.Command("docker", "run", "--name", ps, "-d", "-p", port, "-v", volume, "redis", "redis-server", logLevel)
fmt.Printf("Run Redis process = %v \n", cmd.Args)
return cmd.Run()
}
func listDockerProcesses() error {
cmd := exec.Command("docker", "ps")
var b []byte
buf := bytes.NewBuffer(b)
cmd.Stdout = buf
err := cmd.Run()
if err != nil {
return err
}
// fmt.Printf("out : %s", string(buf.Bytes()))
return nil
}
func TestRedisConnection(ctx context.Context, rClient *redis.Client) error {
err := rClient.Set(ctx, "foo", "bar", 0).Err()
if err != nil {
return err
}
_, err = rClient.Get(ctx, "foo").Result()
return err
}