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package container
import (
"fmt"
"time"
"github.com/spf13/viper"
"golang.org/x/exp/slog"
)
// Config defines endure container configuration.
type Config struct {
GracePeriod time.Duration `mapstructure:"grace_period"`
LogLevel string `mapstructure:"log_level"`
WatchdogSec int `mapstructure:"watchdog_sec"`
PrintGraph bool `mapstructure:"print_graph"`
}
const (
// endure config key
endureKey = "endure"
// overall grace period, after which container will be stopped forcefully
defaultGracePeriod = time.Second * 30
)
// NewConfig creates endure container configuration.
func NewConfig(cfgFile string) (*Config, error) {
v := viper.New()
v.SetConfigFile(cfgFile)
err := v.ReadInConfig()
if err != nil {
return nil, err
}
cfg := &Config{
GracePeriod: defaultGracePeriod,
LogLevel: "error",
PrintGraph: false,
}
if !v.IsSet(endureKey) {
return cfg, nil
}
err = v.UnmarshalKey(endureKey, cfg)
if err != nil {
return nil, err
}
return cfg, nil
}
func ParseLogLevel(s string) (slog.Leveler, error) {
switch s {
case "debug":
return slog.LevelDebug, nil
case "info":
return slog.LevelInfo, nil
case "warn", "warning":
return slog.LevelWarn, nil
case "error":
return slog.LevelError, nil
default:
return slog.LevelError, fmt.Errorf(`unknown log level "%s" (allowed: debug, info, warn, error)`, s)
}
}
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