82 lines
2.0 KiB
Go
82 lines
2.0 KiB
Go
// Package config owns GL configuration loading and validation.
|
|
package config
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/knadh/koanf/parsers/toml"
|
|
"github.com/knadh/koanf/providers/file"
|
|
"github.com/knadh/koanf/v2"
|
|
)
|
|
|
|
type Config struct {
|
|
Environment string `koanf:"environment"`
|
|
GRPC GRPCConfig `koanf:"grpc"`
|
|
Database DatabaseConfig `koanf:"database"`
|
|
}
|
|
|
|
type GRPCConfig struct {
|
|
Host string `koanf:"host"`
|
|
Port int `koanf:"port"`
|
|
ShutdownTimeout time.Duration `koanf:"shutdown-timeout"`
|
|
}
|
|
|
|
type DatabaseConfig struct {
|
|
Host string `koanf:"host"`
|
|
Port int `koanf:"port"`
|
|
Name string `koanf:"name"`
|
|
User string `koanf:"user"`
|
|
Password string `koanf:"password"`
|
|
SSLMode string `koanf:"ssl-mode"`
|
|
}
|
|
|
|
func Load(path string) (*Config, error) {
|
|
cfg := &Config{
|
|
Environment: "local",
|
|
GRPC: GRPCConfig{
|
|
Host: "0.0.0.0",
|
|
Port: 8500,
|
|
ShutdownTimeout: 10 * time.Second,
|
|
},
|
|
Database: DatabaseConfig{
|
|
Host: "127.0.0.1",
|
|
Port: 5432,
|
|
Name: "gl_db",
|
|
User: "postgres",
|
|
SSLMode: "disable",
|
|
},
|
|
}
|
|
|
|
k := koanf.New(".")
|
|
if err := k.Load(file.Provider(path), toml.Parser()); err != nil {
|
|
return nil, fmt.Errorf("load config: %w", err)
|
|
}
|
|
if err := k.Unmarshal("", cfg); err != nil {
|
|
return nil, fmt.Errorf("decode config: %w", err)
|
|
}
|
|
if err := cfg.Validate(); err != nil {
|
|
return nil, err
|
|
}
|
|
return cfg, nil
|
|
}
|
|
|
|
func (c *Config) Validate() error {
|
|
if c.GRPC.Host == "" {
|
|
return fmt.Errorf("grpc host is required")
|
|
}
|
|
if c.GRPC.Port < 0 || c.GRPC.Port > 65535 {
|
|
return fmt.Errorf("grpc port must be between 0 and 65535")
|
|
}
|
|
if c.GRPC.ShutdownTimeout <= 0 {
|
|
return fmt.Errorf("grpc shutdown timeout must be positive")
|
|
}
|
|
if c.Database.Host == "" || c.Database.Name == "" || c.Database.User == "" {
|
|
return fmt.Errorf("database host, name, and user are required")
|
|
}
|
|
if c.Database.Port < 1 || c.Database.Port > 65535 {
|
|
return fmt.Errorf("database port must be between 1 and 65535")
|
|
}
|
|
return nil
|
|
}
|