Rainbond/node/nodem/service/configs.go
2020-09-06 11:09:48 +08:00

169 lines
4.7 KiB
Go

// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package service
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"github.com/goodrain/rainbond/util"
"github.com/sirupsen/logrus"
yaml "gopkg.in/yaml.v2"
)
//LoadServicesFromLocal load all service config from config file
func LoadServicesFromLocal(serviceListFile string) []*Service {
var serviceList []*Service
ok, err := util.IsDir(serviceListFile)
if err != nil {
logrus.Errorf("read service config file error,%s", err.Error())
return nil
}
if !ok {
services, err := loadServicesFromFile(serviceListFile)
if err != nil {
logrus.Errorf("read service config file %s error,%s", serviceListFile, err.Error())
return nil
}
return services.Services
}
filepath.Walk(serviceListFile, func(path string, info os.FileInfo, err error) error {
if strings.HasSuffix(path, "yaml") && !info.IsDir() {
services, err := loadServicesFromFile(path)
if err != nil {
logrus.Errorf("read service config file %s error,%s", path, err.Error())
return nil
}
serviceList = append(serviceList, services.Services...)
}
return nil
})
result := removeRepByLoop(serviceList)
logrus.Infof("load service config file success. load %d service", len(result))
return result
}
//LoadServicesWithFileFromLocal load service with file
func LoadServicesWithFileFromLocal(serviceListFile string) []*Services {
var serviceList []*Services
ok, err := util.IsDir(serviceListFile)
if err != nil {
logrus.Errorf("read service config file error,%s", err.Error())
return nil
}
if !ok {
services, err := loadServicesFromFile(serviceListFile)
if err != nil {
logrus.Errorf("read service config file %s error,%s", serviceListFile, err.Error())
return nil
}
serviceList = append(serviceList, services)
return serviceList
}
filepath.Walk(serviceListFile, func(path string, info os.FileInfo, err error) error {
if strings.HasSuffix(path, "yaml") && !info.IsDir() {
services, err := loadServicesFromFile(path)
if err != nil {
logrus.Errorf("read service config file %s error,%s", path, err.Error())
return nil
}
serviceList = append(serviceList, services)
}
return nil
})
return serviceList
}
//WriteServicesWithFile write services config file
func WriteServicesWithFile(serviceLists ...*Services) error {
for _, serviceList := range serviceLists {
if serviceList.FromFile != "" {
write := func() error {
success := false
if ok, _ := util.FileExists(serviceList.FromFile); ok {
if err := os.Rename(serviceList.FromFile, serviceList.FromFile+".bak"); err == nil {
defer func() {
if success {
os.Remove(serviceList.FromFile + ".bak")
} else {
os.Rename(serviceList.FromFile+".bak", serviceList.FromFile)
}
}()
}
}
file, err := os.OpenFile(serviceList.FromFile, os.O_CREATE|os.O_RDWR, 0755)
if err != nil {
return err
}
defer file.Close()
filebody, err := yaml.Marshal(serviceList)
if err != nil {
return err
}
if _, err := file.Write(filebody); err != nil {
return err
}
success = true
return nil
}
if err := write(); err != nil {
return err
}
}
}
return nil
}
func removeRepByLoop(source []*Service) (target []*Service) {
for i, s := range source {
flag := true
for _, t := range target {
if s.Name == t.Name {
flag = false
break
}
}
if flag {
target = append(target, source[i])
}
}
return
}
func loadServicesFromFile(serviceListFile string) (*Services, error) {
// load default-configs.yaml
content, err := ioutil.ReadFile(serviceListFile)
if err != nil {
err = fmt.Errorf("Failed to read service list file: %s", err.Error())
return nil, err
}
var defaultConfigs Services
err = yaml.Unmarshal(content, &defaultConfigs)
if err != nil {
logrus.Error("Failed to parse default configs yaml file: ", err)
return nil, err
}
defaultConfigs.FromFile = serviceListFile
return &defaultConfigs, nil
}