emissary/internal/config/config.go

63 lines
1.3 KiB
Go

package config
import (
"io"
"io/ioutil"
"github.com/pkg/errors"
"gopkg.in/yaml.v3"
)
// Config definition
type Config struct {
Logger LoggerConfig `yaml:"logger"`
Server ServerConfig `yaml:"server"`
Agent AgentConfig `yaml:"agent"`
}
// NewFromFile retrieves the configuration from the given file
func NewFromFile(path string) (*Config, error) {
config := NewDefault()
data, err := ioutil.ReadFile(path)
if err != nil {
return nil, errors.Wrapf(err, "could not read file '%s'", path)
}
if err := yaml.Unmarshal(data, config); err != nil {
return nil, errors.Wrapf(err, "could not unmarshal configuration")
}
return config, nil
}
// NewDumpDefault dump the new default configuration
func NewDumpDefault() *Config {
config := NewDefault()
return config
}
// NewDefault return new default configuration
func NewDefault() *Config {
return &Config{
Logger: NewDefaultLoggerConfig(),
Agent: NewDefaultAgentConfig(),
Server: NewDefaultServerConfig(),
}
}
// Dump the given configuration in the given writer
func Dump(config *Config, w io.Writer) error {
data, err := yaml.Marshal(config)
if err != nil {
return errors.Wrap(err, "could not dump config")
}
if _, err := w.Write(data); err != nil {
return errors.WithStack(err)
}
return nil
}