service -> configuration
This commit is contained in:
parent
7fcc4761da
commit
cef926379c
5 changed files with 53 additions and 51 deletions
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@ -19,7 +19,7 @@ type Route struct {
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Rules map[string]Rule
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}
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type Service struct {
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type Configuration struct {
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Backends map[string]Backend
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Routes map[string]Route
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}
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26
docker.go
26
docker.go
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@ -1,5 +1,5 @@
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package main
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import(
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import (
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"github.com/fsouza/go-dockerclient"
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"github.com/leekchan/gtf"
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"bytes"
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@ -13,27 +13,29 @@ type DockerProvider struct {
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dockerClient *docker.Client
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}
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func (provider *DockerProvider) Provide(serviceChan chan<- *Service){
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func (provider *DockerProvider) Provide(configurationChan chan <- *Configuration) {
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provider.dockerClient, _ = docker.NewClient(provider.Endpoint)
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dockerEvents := make(chan *docker.APIEvents)
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if(provider.Watch) {
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if (provider.Watch) {
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provider.dockerClient.AddEventListener(dockerEvents)
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}
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go func() {
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for {
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event := <-dockerEvents
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log.Println("Event receveived", event)
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service:= provider.loadDockerConfig()
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serviceChan <- service
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configuration := provider.loadDockerConfig()
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if (configuration != nil) {
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configurationChan <- configuration
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}
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}
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}()
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service:= provider.loadDockerConfig()
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serviceChan <- service
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configuration := provider.loadDockerConfig()
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configurationChan <- configuration
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}
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func (provider *DockerProvider) loadDockerConfig() *Service {
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service := new(Service)
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func (provider *DockerProvider) loadDockerConfig() *Configuration {
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configuration := new(Configuration)
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containerList, _ := provider.dockerClient.ListContainers(docker.ListContainersOptions{})
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containersInspected := []docker.Container{}
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for _, container := range containerList {
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@ -59,9 +61,9 @@ func (provider *DockerProvider) loadDockerConfig() *Service {
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return nil
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}
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if _, err := toml.Decode(buffer.String(), service); err != nil {
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log.Println("Error creating docker service:", err)
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if _, err := toml.Decode(buffer.String(), configuration); err != nil {
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log.Println("Error creating docker configuration:", err)
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return nil
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}
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return service
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return configuration
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}
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20
file.go
20
file.go
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@ -14,7 +14,7 @@ type FileProvider struct {
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Filename string
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}
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func (provider *FileProvider) Provide(serviceChan chan<- *Service){
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func (provider *FileProvider) Provide(configurationChan chan<- *Configuration){
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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log.Println(err)
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@ -37,9 +37,9 @@ func (provider *FileProvider) Provide(serviceChan chan<- *Service){
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case event := <-watcher.Events:
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if(strings.Contains(event.Name,file.Name())){
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log.Println("File event:", event)
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service := provider.LoadFileConfig(file.Name())
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if(service != nil) {
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serviceChan <- service
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configuration := provider.LoadFileConfig(file.Name())
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if(configuration != nil) {
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configurationChan <- configuration
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}
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}
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case error := <-watcher.Errors:
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@ -58,17 +58,17 @@ func (provider *FileProvider) Provide(serviceChan chan<- *Service){
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}
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service:= provider.LoadFileConfig(file.Name())
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serviceChan <- service
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configuration := provider.LoadFileConfig(file.Name())
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configurationChan <- configuration
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<-done
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}
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func (provider *FileProvider) LoadFileConfig(filename string) *Service {
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service := new(Service)
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if _, err := toml.DecodeFile(filename, service); err != nil {
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func (provider *FileProvider) LoadFileConfig(filename string) *Configuration {
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configuration := new(Configuration)
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if _, err := toml.DecodeFile(filename, configuration); err != nil {
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log.Println("Error reading file:", err)
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return nil
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}
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return service
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return configuration
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}
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@ -1,5 +1,5 @@
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package main
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type Provider interface {
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Provide(chan<- *Service)
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Provide(chan<- *Configuration)
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}
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46
tortuous.go
46
tortuous.go
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@ -18,16 +18,16 @@ import (
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"github.com/BurntSushi/toml"
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)
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type Configuration struct {
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type FileConfiguration struct {
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Docker *DockerProvider
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File *FileProvider
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}
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var srv *graceful.Server
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var serviceRouter *mux.Router
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var configurationRouter *mux.Router
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var renderer = render.New()
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var currentService = new(Service)
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var serviceChan = make(chan *Service)
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var currentConfiguration = new(Configuration)
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var configurationChan = make(chan *Configuration)
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var providers = []Provider{}
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func main() {
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@ -41,15 +41,15 @@ func main() {
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go func() {
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for {
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service := <-serviceChan
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log.Println("Service receveived", service)
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if service == nil {
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log.Println("Skipping nil service")
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} else if(reflect.DeepEqual(currentService, service)){
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log.Println("Skipping same service")
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configuration := <-configurationChan
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log.Println("Configuration receveived", configuration)
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if configuration == nil {
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log.Println("Skipping empty configuration")
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} else if(reflect.DeepEqual(currentConfiguration, configuration)){
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log.Println("Skipping same configuration")
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} else{
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currentService = service
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serviceRouter = LoadConfig(service)
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currentConfiguration = configuration
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configurationRouter = LoadConfig(configuration)
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srv.Stop(10 * time.Second)
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time.Sleep(3 * time.Second)
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}
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@ -66,11 +66,11 @@ func main() {
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providers = append(providers, configuration.File)
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}
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go func() {
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for _, provider := range providers {
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provider.Provide(serviceChan)
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}
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go func() {
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provider.Provide(configurationChan)
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}()
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}
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goAway := false
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go func() {
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@ -94,7 +94,7 @@ func main() {
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Server: &http.Server{
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Addr: ":8001",
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Handler: serviceRouter,
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Handler: configurationRouter,
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},
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}
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@ -105,9 +105,9 @@ func main() {
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}
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}
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func LoadConfig(service *Service) *mux.Router {
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func LoadConfig(configuration *Configuration) *mux.Router {
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router := mux.NewRouter()
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for routeName, route := range service.Routes {
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for routeName, route := range configuration.Routes {
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log.Println("Creating route", routeName)
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fwd, _ := forward.New()
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newRoutes := []*mux.Route{}
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@ -121,7 +121,7 @@ func LoadConfig(service *Service) *mux.Router {
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log.Println("Creating backend", backendName)
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lb, _ := roundrobin.New(fwd)
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rb, _ := roundrobin.NewRebalancer(lb)
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for serverName, server := range service.Backends[backendName].Servers {
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for serverName, server := range configuration.Backends[backendName].Servers {
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log.Println("Creating server", serverName)
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url, _ := url.Parse(server.Url)
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rb.UpsertServer(url)
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@ -135,7 +135,7 @@ func LoadConfig(service *Service) *mux.Router {
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}
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func DeployService() {
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serviceRouter = LoadConfig(currentService)
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configurationRouter = LoadConfig(currentConfiguration)
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}
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func ReloadConfigHandler(rw http.ResponseWriter, r *http.Request) {
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@ -149,7 +149,7 @@ func RestartHandler(rw http.ResponseWriter, r *http.Request) {
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}
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func GetConfigHandler(rw http.ResponseWriter, r *http.Request) {
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renderer.JSON(rw, http.StatusOK, currentService)
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renderer.JSON(rw, http.StatusOK, currentConfiguration)
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}
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func Invoke(any interface{}, name string, args ...interface{}) []reflect.Value {
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@ -160,8 +160,8 @@ func Invoke(any interface{}, name string, args ...interface{}) []reflect.Value {
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return reflect.ValueOf(any).MethodByName(name).Call(inputs)
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}
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func LoadFileConfig() *Configuration {
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configuration := new(Configuration)
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func LoadFileConfig() *FileConfiguration {
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configuration := new(FileConfiguration)
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if _, err := toml.DecodeFile("tortuous.toml", configuration); err != nil {
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log.Fatal("Error reading file:", err)
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}
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