config.go

// Copyright 2017 Sebastian Stauch.  All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.

package main

import (
	"io/ioutil"

	"github.com/ghodss/yaml"
)

type TlsParams struct {
	CertFile    string   `json:"certFile"`
	KeyFile     string   `json:"keyFile"`
	AllowedOrgs []string `json:"allowedOrgs,omitempty"`
}

type Headers map[string]string

type Configuration struct {
	CaFiles        []string `json:"caFiles,omitempty"`
	ListenAddress  string   `json:"listenAddress"`
	MetricsAddress string   `json:"metricsAddress"`
	VHosts         []struct {
		TargetAddress string    `json:"targetAddress"`
		Hostname      string    `json:"hostname"`
		Tls           TlsParams `json:"tls"`
		Log           bool      `json:"log"`
		Headers       Headers   `json:"headers,omitempty"`
	} `json:"vHosts,inline"`
}

func LoadConfig(configfile string) (Configuration, error) {
	configContent, err := ioutil.ReadFile(configfile)
	if err != nil {
		return Configuration{}, err
	}

	var config Configuration
	err = yaml.Unmarshal(configContent, &config)
	if err != nil {
		return Configuration{}, err
	}

	return config, nil
}