refactor(api): refactor

api/bolt/endpoint_service.go

@@ -73,27 +73,14 @@ func (service *EndpointService) Synchronize(toCreate, toUpdate, toDelete []*port
 		bucket := tx.Bucket([]byte(endpointBucketName))
 
 		for _, endpoint := range toCreate {
-			id, _ := bucket.NextSequence()
-			endpoint.ID = portainer.EndpointID(id)
-
-			data, err := internal.MarshalEndpoint(endpoint)
-			if err != nil {
-				return err
-			}
-
-			err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
+			err := storeNewEndpoint(endpoint, bucket)
 			if err != nil {
 				return err
 			}
 		}
 
 		for _, endpoint := range toUpdate {
-			data, err := internal.MarshalEndpoint(endpoint)
-			if err != nil {
-				return err
-			}
-
-			err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
+			err := marshalAndStoreEndpoint(endpoint, bucket)
 			if err != nil {
 				return err
 			}
@@ -114,16 +101,7 @@ func (service *EndpointService) Synchronize(toCreate, toUpdate, toDelete []*port
 func (service *EndpointService) CreateEndpoint(endpoint *portainer.Endpoint) error {
 	return service.store.db.Update(func(tx *bolt.Tx) error {
 		bucket := tx.Bucket([]byte(endpointBucketName))
-
-		id, _ := bucket.NextSequence()
-		endpoint.ID = portainer.EndpointID(id)
-
-		data, err := internal.MarshalEndpoint(endpoint)
-		if err != nil {
-			return err
-		}
-
-		err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
+		err := storeNewEndpoint(endpoint, bucket)
 		if err != nil {
 			return err
 		}
@@ -215,3 +193,23 @@ func (service *EndpointService) DeleteActive() error {
 		return nil
 	})
 }
+
+func marshalAndStoreEndpoint(endpoint *portainer.Endpoint, bucket *bolt.Bucket) error {
+	data, err := internal.MarshalEndpoint(endpoint)
+	if err != nil {
+		return err
+	}
+
+	err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func storeNewEndpoint(endpoint *portainer.Endpoint, bucket *bolt.Bucket) error {
+	id, _ := bucket.NextSequence()
+	endpoint.ID = portainer.EndpointID(id)
+
+	return marshalAndStoreEndpoint(endpoint, bucket)
+}

api/cli/cli.go

@@ -19,6 +19,7 @@ const (
 	errSocketNotFound          = portainer.Error("Unable to locate Unix socket")
 	errEndpointsFileNotFound   = portainer.Error("Unable to locate external endpoints file")
 	errInvalidSyncInterval     = portainer.Error("Invalid synchronization interval")
+	errEndpointExcludeExternal = portainer.Error("Cannot use the -H mutually with --external-endpoints")
 )
 
 // ParseFlags parse the CLI flags and return a portainer.Flags struct
@@ -48,13 +49,37 @@ func (*Service) ParseFlags(version string) (*portainer.CLIFlags, error) {
 
 // ValidateFlags validates the values of the flags.
 func (*Service) ValidateFlags(flags *portainer.CLIFlags) error {
-	if *flags.Endpoint != "" {
-		if !strings.HasPrefix(*flags.Endpoint, "unix://") && !strings.HasPrefix(*flags.Endpoint, "tcp://") {
+
+	if *flags.Endpoint != "" && *flags.ExternalEndpoints != "" {
+		return errEndpointExcludeExternal
+	}
+
+	err := validateEndpoint(*flags.Endpoint)
+	if err != nil {
+		return err
+	}
+
+	err = validateExternalEndpoints(*flags.ExternalEndpoints)
+	if err != nil {
+		return err
+	}
+
+	err = validateSyncInterval(*flags.SyncInterval)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func validateEndpoint(endpoint string) error {
+	if endpoint != "" {
+		if !strings.HasPrefix(endpoint, "unix://") && !strings.HasPrefix(endpoint, "tcp://") {
 			return errInvalidEnpointProtocol
 		}
 
-		if strings.HasPrefix(*flags.Endpoint, "unix://") {
-			socketPath := strings.TrimPrefix(*flags.Endpoint, "unix://")
+		if strings.HasPrefix(endpoint, "unix://") {
+			socketPath := strings.TrimPrefix(endpoint, "unix://")
 			if _, err := os.Stat(socketPath); err != nil {
 				if os.IsNotExist(err) {
 					return errSocketNotFound
@@ -63,22 +88,27 @@ func (*Service) ValidateFlags(flags *portainer.CLIFlags) error {
 			}
 		}
 	}
+	return nil
+}
 
-	if *flags.ExternalEndpoints != "" {
-		if _, err := os.Stat(*flags.ExternalEndpoints); err != nil {
+func validateExternalEndpoints(externalEndpoints string) error {
+	if externalEndpoints != "" {
+		if _, err := os.Stat(externalEndpoints); err != nil {
 			if os.IsNotExist(err) {
 				return errEndpointsFileNotFound
 			}
 			return err
 		}
 	}
+	return nil
+}
 
-	if *flags.SyncInterval != defaultSyncInterval {
-		_, err := time.ParseDuration(*flags.SyncInterval)
+func validateSyncInterval(syncInterval string) error {
+	if syncInterval != defaultSyncInterval {
+		_, err := time.ParseDuration(syncInterval)
 		if err != nil {
 			return errInvalidSyncInterval
 		}
 	}
-
 	return nil
 }

api/cmd/portainer/main.go

@@ -13,7 +13,7 @@ import (
 	"log"
 )
 
-func main() {
+func initCLI() *portainer.CLIFlags {
 	var cli portainer.CLIService = &cli.Service{}
 	flags, err := cli.ParseFlags(portainer.APIVersion)
 	if err != nil {
@@ -24,54 +24,80 @@ func main() {
 	if err != nil {
 		log.Fatal(err)
 	}
+	return flags
+}
 
-	fileService, err := file.NewService(*flags.Data, "")
+func initFileService(dataStorePath string) portainer.FileService {
+	fileService, err := file.NewService(dataStorePath, "")
 	if err != nil {
 		log.Fatal(err)
 	}
+	return fileService
+}
 
-	var store = bolt.NewStore(*flags.Data)
-	err = store.Open()
+func initStore(dataStorePath string) *bolt.Store {
+	var store = bolt.NewStore(dataStorePath)
+	err := store.Open()
 	if err != nil {
 		log.Fatal(err)
 	}
-	defer store.Close()
+	return store
+}
 
-	var jwtService portainer.JWTService
-	if !*flags.NoAuth {
-		jwtService, err = jwt.NewService()
+func initJWTService(authenticationEnabled bool) portainer.JWTService {
+	if authenticationEnabled {
+		jwtService, err := jwt.NewService()
 		if err != nil {
 			log.Fatal(err)
 		}
+		return jwtService
 	}
+	return nil
+}
 
-	var cryptoService portainer.CryptoService = &crypto.Service{}
+func initCryptoService() portainer.CryptoService {
+	return &crypto.Service{}
+}
 
-	var endpointWatcher portainer.EndpointWatcher
+func initEndpointWatcher(endpointService portainer.EndpointService, externalEnpointFile string, syncInterval string) bool {
 	authorizeEndpointMgmt := true
-	if *flags.ExternalEndpoints != "" {
-		log.Println("Using external endpoint definition. Disabling endpoint management via API.")
+	if externalEnpointFile != "" {
 		authorizeEndpointMgmt = false
-		endpointWatcher = cron.NewWatcher(store.EndpointService, *flags.SyncInterval)
-		err = endpointWatcher.WatchEndpointFile(*flags.ExternalEndpoints)
+		log.Println("Using external endpoint definition. Endpoint management via the API will be disabled.")
+		endpointWatcher := cron.NewWatcher(endpointService, syncInterval)
+		err := endpointWatcher.WatchEndpointFile(externalEnpointFile)
 		if err != nil {
 			log.Fatal(err)
 		}
 	}
+	return authorizeEndpointMgmt
+}
 
-	settings := &portainer.Settings{
+func initSettings(authorizeEndpointMgmt bool, flags *portainer.CLIFlags) *portainer.Settings {
+	return &portainer.Settings{
 		HiddenLabels:       *flags.Labels,
 		Logo:               *flags.Logo,
 		Authentication:     !*flags.NoAuth,
 		EndpointManagement: authorizeEndpointMgmt,
 	}
+}
 
-	// Initialize the active endpoint from the CLI only if there is no
-	// active endpoint defined yet.
-	var activeEndpoint *portainer.Endpoint
-	if *flags.Endpoint != "" {
-		activeEndpoint, err = store.EndpointService.GetActive()
+func initActiveEndpointFromFirstEndpointInDatabase(endpointService portainer.EndpointService) {
+
+}
+
+func retrieveFirstEndpointFromDatabase(endpointService portainer.EndpointService) *portainer.Endpoint {
+	endpoints, err := endpointService.Endpoints()
+	if err != nil {
+		log.Fatal(err)
+	}
+	return &endpoints[0]
+}
+
+func initActiveEndpoint(endpointService portainer.EndpointService, flags *portainer.CLIFlags) *portainer.Endpoint {
+	activeEndpoint, err := endpointService.GetActive()
 	if err == portainer.ErrEndpointNotFound {
+		if *flags.Endpoint != "" {
 			activeEndpoint = &portainer.Endpoint{
 				Name:          "primary",
 				URL:           *flags.Endpoint,
@@ -80,30 +106,36 @@ func main() {
 				TLSCertPath:   *flags.TLSCert,
 				TLSKeyPath:    *flags.TLSKey,
 			}
-			err = store.EndpointService.CreateEndpoint(activeEndpoint)
+			err = endpointService.CreateEndpoint(activeEndpoint)
 			if err != nil {
 				log.Fatal(err)
 			}
-		} else if err != nil {
-			log.Fatal(err)
-		}
-	}
-	if *flags.ExternalEndpoints != "" {
-		activeEndpoint, err = store.EndpointService.GetActive()
-		if err == portainer.ErrEndpointNotFound {
-			var endpoints []portainer.Endpoint
-			endpoints, err = store.EndpointService.Endpoints()
-			if err != nil {
-				log.Fatal(err)
-			}
-			err = store.EndpointService.SetActive(&endpoints[0])
-			if err != nil {
-				log.Fatal(err)
+		} else if *flags.ExternalEndpoints != "" {
+			activeEndpoint = retrieveFirstEndpointFromDatabase(endpointService)
 		}
 	} else if err != nil {
 		log.Fatal(err)
 	}
-	}
+	return activeEndpoint
+}
+
+func main() {
+	flags := initCLI()
+
+	fileService := initFileService(*flags.Data)
+
+	store := initStore(*flags.Data)
+	defer store.Close()
+
+	jwtService := initJWTService(!*flags.NoAuth)
+
+	cryptoService := initCryptoService()
+
+	authorizeEndpointMgmt := initEndpointWatcher(store.EndpointService, *flags.ExternalEndpoints, *flags.SyncInterval)
+
+	settings := initSettings(authorizeEndpointMgmt, flags)
+
+	activeEndpoint := initActiveEndpoint(store.EndpointService, flags)
 
 	var server portainer.Server = &http.Server{
 		BindAddress:        *flags.Addr,
@@ -121,7 +153,7 @@ func main() {
 	}
 
 	log.Printf("Starting Portainer on %s", *flags.Addr)
-	err = server.Start()
+	err := server.Start()
 	if err != nil {
 		log.Fatal(err)
 	}

api/cron/endpoint_sync.go

@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"log"
 	"os"
+	"strings"
 
 	"github.com/portainer/portainer"
 )
@@ -46,6 +47,9 @@ func endpointSyncError(err error, logger *log.Logger) bool {
 
 func isValidEndpoint(endpoint *portainer.Endpoint) bool {
 	if endpoint.Name != "" && endpoint.URL != "" {
+		if !strings.HasPrefix(endpoint.URL, "unix://") && !strings.HasPrefix(endpoint.URL, "tcp://") {
+			return false
+		}
 		return true
 	}
 	return false
@@ -155,12 +159,13 @@ func (job endpointSyncJob) Sync() error {
 		if endpointSyncError(err, job.logger) {
 			return err
 		}
+		job.logger.Printf("Endpoint synchronization ended. [created: %v] [updated: %v] [deleted: %v]", len(sync.endpointsToCreate), len(sync.endpointsToUpdate), len(sync.endpointsToDelete))
 	}
 	return nil
 }
 
 func (job endpointSyncJob) Run() {
-	job.logger.Printf("Endpoint synchronization job started")
+	job.logger.Println("Endpoint synchronization job started.")
 	err := job.Sync()
 	endpointSyncError(err, job.logger)
 }

api/cron/watcher.go

@@ -24,11 +24,17 @@ func NewWatcher(endpointService portainer.EndpointService, syncInterval string)
 // WatchEndpointFile starts a cron job to synchronize the endpoints from a file
 func (watcher *Watcher) WatchEndpointFile(endpointFilePath string) error {
 	job := newEndpointSyncJob(endpointFilePath, watcher.EndpointService)
+
 	err := job.Sync()
 	if err != nil {
 		return err
 	}
-	watcher.Cron.AddJob("@every "+watcher.syncInterval, job)
+
+	err = watcher.Cron.AddJob("@every "+watcher.syncInterval, job)
+	if err != nil {
+		return err
+	}
+
 	watcher.Cron.Start()
 	return nil
 }