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」 feat(Mariadb): working health check f*ck yeaaaaahh

This commit is contained in:
2025-01-09 17:58:51 +01:00
parent 5402fb13b6
commit c4a2916143
2 changed files with 30 additions and 41 deletions

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@ -1,60 +1,51 @@
package main
import (
"database/sql"
"fmt"
"os"
"os/exec"
"strings"
"time"
"git.keyzox.me/42_adjoly/inception/internal/env"
"git.keyzox.me/42_adjoly/inception/internal/log"
)
func escapeIdentifier(identifier string) string {
// Replace backticks with double backticks to safely escape identifiers
return fmt.Sprintf("`%s`", strings.ReplaceAll(identifier, "'", "\""))
func checkMariaDB(user, password, host, port string) bool {
// Create the command to run mariadb client
cmd := exec.Command("mariadb", "-u"+user, "-p"+password, "-h"+host, "-P"+port, "-e", "SELECT 1;")
// Run the command
err := cmd.Run()
if err != nil {
fmt.Printf("Health check failed: %v\n", err)
return false
}
fmt.Println("MariaDB is healthy")
return true
}
func escapePassword(password string) string {
// Escape single quotes in passwords
return strings.ReplaceAll(password, "'", "\\'")
}
func checkHealth(host, user, pass, port, dbName string) bool {
dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s", user, pass, host, port, dbName)
// Attempt to open a database connection
db, err := sql.Open("mysql", dsn)
if err != nil {
_log.Log("warning", fmt.Sprintf("Failed to open database connection: %v", err))
return false
}
defer db.Close()
// Attempt to ping the database
if err := db.Ping(); err != nil {
_log.Log("warning", fmt.Sprintf("Health check failed: %v", err))
return false
}
_log.Log("note", "Health check passed successfully")
return true
new := strings.ReplaceAll(password, "\"", "")
return strings.ReplaceAll(new, "'", "\\'")
}
func main() {
// Load environment variables
pass := escapePassword(env.FileEnv("MYSQL_PASSWORD", "default"))
user := escapeIdentifier(env.FileEnv("MYSQL_USER", "mariadb"))
dbName := escapeIdentifier(env.EnvCheck("MYSQL_DATABASE", "default"))
dbHost := "127.0.0.1"
// Configuration
user := escapePassword(env.FileEnv("MYSQL_USER", "mariadb"))
password := escapePassword(env.FileEnv("MYSQL_PASSWORD", "default"))
host := "127.0.0.1"
port := "3306"
// Perform the health check
res := checkHealth(dbHost, user, pass, "3306", dbName)
if res {
_log.Log("note", "MariaDB is healthy")
os.Exit(0)
// Retry health check for MariaDB
for i := 0; i < 10; i++ {
if checkMariaDB(user, password, host, port) {
os.Exit(0) // Success
}
fmt.Println("Waiting for MariaDB to become ready...")
time.Sleep(2 * time.Second)
}
_log.Log("warning", "Health check failed")
os.Exit(1)
fmt.Println("MariaDB health check failed")
os.Exit(1) // Failure
}

2
go.mod
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@ -3,6 +3,4 @@ module git.keyzox.me/42_adjoly/inception
go 1.23.4
require (
filippo.io/edwards25519 v1.1.0 // indirect
github.com/go-sql-driver/mysql v1.8.1 // indirect
)