78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
package db
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"kooltap-updateserver/internal/models"
|
|
"log"
|
|
"time"
|
|
|
|
"gorm.io/driver/postgres"
|
|
"gorm.io/gorm"
|
|
"gorm.io/gorm/logger"
|
|
)
|
|
|
|
// Connect opens the Postgres database and migrates the schema.
|
|
// It retries for a while because the database container may still be starting.
|
|
func Connect(dsn string) (*gorm.DB, error) {
|
|
|
|
cfg := &gorm.Config{
|
|
// Turns driver specific unique violations into gorm.ErrDuplicatedKey
|
|
TranslateError: true,
|
|
Logger: logger.Default.LogMode(logger.Warn),
|
|
}
|
|
|
|
var (
|
|
db *gorm.DB
|
|
err error
|
|
)
|
|
|
|
deadline := time.Now().Add(60 * time.Second)
|
|
for {
|
|
db, err = gorm.Open(postgres.Open(dsn), cfg)
|
|
if err == nil {
|
|
err = ping(db)
|
|
}
|
|
if err == nil || time.Now().After(deadline) {
|
|
break
|
|
}
|
|
log.Printf("database not ready, retrying: %v", err)
|
|
time.Sleep(2 * time.Second)
|
|
}
|
|
if err != nil {
|
|
return nil, fmt.Errorf("connect to postgres: %w", err)
|
|
}
|
|
|
|
sqlDB, err := db.DB()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
sqlDB.SetMaxOpenConns(10)
|
|
sqlDB.SetMaxIdleConns(5)
|
|
sqlDB.SetConnMaxLifetime(30 * time.Minute)
|
|
|
|
if err := Migrate(db); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return db, nil
|
|
}
|
|
|
|
// Migrate creates or updates the tables for all models.
|
|
func Migrate(db *gorm.DB) error {
|
|
if err := db.AutoMigrate(&models.Release{}); err != nil {
|
|
return fmt.Errorf("migrate: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func ping(db *gorm.DB) error {
|
|
sqlDB, err := db.DB()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
|
defer cancel()
|
|
return sqlDB.PingContext(ctx)
|
|
}
|