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// Copyright © 2023 OpenIM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"flag"
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"fmt"
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"net"
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"net/url"
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"os"
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"strings"
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"time"
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"github.com/minio/minio-go/v7"
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"github.com/redis/go-redis/v9"
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"gopkg.in/yaml.v3"
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"github.com/IBM/sarama"
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"github.com/OpenIMSDK/tools/errs"
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"github.com/go-zookeeper/zk"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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"github.com/openimsdk/open-im-server/v3/pkg/common/config"
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"github.com/minio/minio-go/v7/pkg/credentials"
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)
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const (
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// defaultCfgPath is the default path of the configuration file.
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defaultCfgPath = "../../../../../config/config.yaml"
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minioHealthCheckDuration = 1
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maxRetry = 100
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componentStartErrCode = 6000
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configErrCode = 6001
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)
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const (
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colorRed = 31
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colorGreen = 32
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colorYellow = 33
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)
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var (
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cfgPath = flag.String("c", defaultCfgPath, "Path to the configuration file")
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ErrComponentStart = errs.NewCodeError(componentStartErrCode, "ComponentStartErr")
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ErrConfig = errs.NewCodeError(configErrCode, "Config file is incorrect")
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)
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func initCfg() error {
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data, err := os.ReadFile(*cfgPath)
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if err != nil {
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return err
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}
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return yaml.Unmarshal(data, &config.Config)
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}
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type checkFunc struct {
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name string
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function func() error
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}
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func main() {
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flag.Parse()
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if err := initCfg(); err != nil {
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fmt.Printf("Read config failed: %v\n", err)
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return
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}
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checks := []checkFunc{
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//{name: "Mysql", function: checkMysql},
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{name: "Mongo", function: checkMongo},
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{name: "Minio", function: checkMinio},
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{name: "Redis", function: checkRedis},
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{name: "Zookeeper", function: checkZookeeper},
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{name: "Kafka", function: checkKafka},
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}
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for i := 0; i < maxRetry; i++ {
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if i != 0 {
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time.Sleep(3 * time.Second)
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}
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fmt.Printf("Checking components Round %v...\n", i+1)
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allSuccess := true
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for _, check := range checks {
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err := check.function()
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if err != nil {
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errorPrint(fmt.Sprintf("Starting %s failed: %v", check.name, err))
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allSuccess = false
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break
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} else {
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successPrint(fmt.Sprintf("%s starts successfully", check.name))
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}
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}
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if allSuccess {
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successPrint("All components started successfully!")
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return
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}
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}
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os.Exit(1)
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}
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func exactIP(urll string) string {
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u, _ := url.Parse(urll)
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host, _, err := net.SplitHostPort(u.Host)
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if err != nil {
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host = u.Host
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}
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if strings.HasSuffix(host, ":") {
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host = host[0 : len(host)-1]
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}
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return host
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}
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// Helper function to get environment variable or default value
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func getEnv(key, fallback string) string {
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if value, exists := os.LookupEnv(key); exists {
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return value
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}
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return fallback
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}
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// checkMongo checks the MongoDB connection
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func checkMongo() error {
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// Use environment variables or fallback to config
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uri := getEnv("MONGO_URI", buildMongoURI())
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client, err := mongo.Connect(context.TODO(), options.Client().ApplyURI(uri))
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if err != nil {
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return errs.Wrap(err)
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}
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defer client.Disconnect(context.TODO())
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if err = client.Ping(context.TODO(), nil); err != nil {
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return errs.Wrap(err)
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}
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return nil
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}
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// buildMongoURI constructs the MongoDB URI using configuration settings
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func buildMongoURI() string {
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// Fallback to config if environment variables are not set
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username := config.Config.Mongo.Username
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password := config.Config.Mongo.Password
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database := config.Config.Mongo.Database
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maxPoolSize := config.Config.Mongo.MaxPoolSize
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mongodbHosts := strings.Join(config.Config.Mongo.Address, ",")
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if username != "" && password != "" {
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return fmt.Sprintf("mongodb://%s:%s@%s/%s?maxPoolSize=%d&authSource=admin",
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username, password, mongodbHosts, database, maxPoolSize)
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}
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return fmt.Sprintf("mongodb://%s/%s?maxPoolSize=%d&authSource=admin",
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mongodbHosts, database, maxPoolSize)
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}
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// checkMinio checks the MinIO connection
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func checkMinio() error {
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// Check if MinIO is enabled
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if config.Config.Object.Enable != "minio" {
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return nil
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}
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// Prioritize environment variables
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endpoint := getEnv("MINIO_ENDPOINT", config.Config.Object.Minio.Endpoint)
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accessKeyID := getEnv("MINIO_ACCESS_KEY_ID", config.Config.Object.Minio.AccessKeyID)
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secretAccessKey := getEnv("MINIO_SECRET_ACCESS_KEY", config.Config.Object.Minio.SecretAccessKey)
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useSSL := getEnv("MINIO_USE_SSL", "false") // Assuming SSL is not used by default
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if endpoint == "" || accessKeyID == "" || secretAccessKey == "" {
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return ErrConfig.Wrap("MinIO configuration missing")
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}
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// Parse endpoint URL to determine if SSL is enabled
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u, err := url.Parse(endpoint)
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if err != nil {
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return errs.Wrap(err)
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}
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secure := u.Scheme == "https" || useSSL == "true"
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// Initialize MinIO client
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minioClient, err := minio.New(u.Host, &minio.Options{
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Creds: credentials.NewStaticV4(accessKeyID, secretAccessKey, ""),
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Secure: secure,
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})
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if err != nil {
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return errs.Wrap(err)
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}
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// Perform health check
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cancel, err := minioClient.HealthCheck(time.Duration(minioHealthCheckDuration) * time.Second)
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if err != nil {
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return errs.Wrap(err)
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}
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defer cancel()
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if minioClient.IsOffline() {
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return ErrComponentStart.Wrap("Minio server is offline")
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}
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// Check for localhost in API URL and Minio SignEndpoint
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if exactIP(config.Config.Object.ApiURL) == "127.0.0.1" || exactIP(config.Config.Object.Minio.SignEndpoint) == "127.0.0.1" {
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return ErrConfig.Wrap("apiURL or Minio SignEndpoint endpoint contain 127.0.0.1")
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}
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return nil
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}
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// checkRedis checks the Redis connection
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func checkRedis() error {
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// Prioritize environment variables
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address := getEnv("REDIS_ADDRESS", strings.Join(config.Config.Redis.Address, ","))
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username := getEnv("REDIS_USERNAME", config.Config.Redis.Username)
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password := getEnv("REDIS_PASSWORD", config.Config.Redis.Password)
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// Split address to handle multiple addresses for cluster setup
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redisAddresses := strings.Split(address, ",")
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var redisClient redis.UniversalClient
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if len(redisAddresses) > 1 {
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// Use cluster client for multiple addresses
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redisClient = redis.NewClusterClient(&redis.ClusterOptions{
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Addrs: redisAddresses,
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Username: username,
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Password: password,
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})
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} else {
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// Use regular client for single address
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redisClient = redis.NewClient(&redis.Options{
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Addr: redisAddresses[0],
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Username: username,
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Password: password,
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})
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}
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defer redisClient.Close()
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// Ping Redis to check connectivity
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_, err := redisClient.Ping(context.Background()).Result()
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if err != nil {
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return errs.Wrap(err)
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}
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return nil
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}
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// checkZookeeper checks the Zookeeper connection
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func checkZookeeper() error {
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// Prioritize environment variables
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schema := getEnv("ZOOKEEPER_SCHEMA", "digest")
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address := getEnv("ZOOKEEPER_ADDRESS", strings.Join(config.Config.Zookeeper.ZkAddr, ","))
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username := getEnv("ZOOKEEPER_USERNAME", config.Config.Zookeeper.Username)
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password := getEnv("ZOOKEEPER_PASSWORD", config.Config.Zookeeper.Password)
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// Split addresses to handle multiple Zookeeper nodes
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zookeeperAddresses := strings.Split(address, ",")
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// Connect to Zookeeper
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c, _, err := zk.Connect(zookeeperAddresses, time.Second) // Adjust the timeout as necessary
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if err != nil {
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return errs.Wrap(err)
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}
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defer c.Close()
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// Set authentication if username and password are provided
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if username != "" && password != "" {
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if err := c.AddAuth(schema, []byte(username+":"+password)); err != nil {
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return errs.Wrap(err)
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}
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}
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// Check if Zookeeper is reachable
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_, _, err = c.Get("/")
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if err != nil {
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return errs.Wrap(err)
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}
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return nil
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}
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// checkKafka checks the Kafka connection
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func checkKafka() error {
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// Prioritize environment variables
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username := getEnv("KAFKA_USERNAME", config.Config.Kafka.Username)
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password := getEnv("KAFKA_PASSWORD", config.Config.Kafka.Password)
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address := getEnv("KAFKA_ADDRESS", strings.Join(config.Config.Kafka.Addr, ","))
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// Split addresses to handle multiple Kafka brokers
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kafkaAddresses := strings.Split(address, ",")
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// Configure Kafka client
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cfg := sarama.NewConfig()
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if username != "" && password != "" {
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cfg.Net.SASL.Enable = true
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cfg.Net.SASL.User = username
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cfg.Net.SASL.Password = password
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}
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// Additional Kafka setup (e.g., TLS configuration) can be added here
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// kafka.SetupTLSConfig(cfg)
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// Create Kafka client
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kafkaClient, err := sarama.NewClient(kafkaAddresses, cfg)
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if err != nil {
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return errs.Wrap(err)
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}
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defer kafkaClient.Close()
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// Verify if necessary topics exist
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topics, err := kafkaClient.Topics()
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if err != nil {
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return errs.Wrap(err)
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}
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requiredTopics := []string{
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config.Config.Kafka.MsgToMongo.Topic,
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config.Config.Kafka.MsgToPush.Topic,
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config.Config.Kafka.LatestMsgToRedis.Topic,
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}
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for _, requiredTopic := range requiredTopics {
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if !isTopicPresent(requiredTopic, topics) {
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return ErrComponentStart.Wrap(fmt.Sprintf("Kafka doesn't contain topic: %v", requiredTopic))
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}
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}
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return nil
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}
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// isTopicPresent checks if a topic is present in the list of topics
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func isTopicPresent(topic string, topics []string) bool {
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for _, t := range topics {
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if t == topic {
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return true
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}
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}
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return false
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}
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func colorPrint(colorCode int, format string, a ...interface{}) {
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fmt.Printf("\x1b[%dm%s\x1b[0m\n", colorCode, fmt.Sprintf(format, a...))
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}
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func errorPrint(s string) {
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colorPrint(colorRed, "%v", s)
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}
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func successPrint(s string) {
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colorPrint(colorGreen, "%v", s)
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}
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func warningPrint(s string) {
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colorPrint(colorYellow, "Warning: But %v", s)
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}
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